[GitHub] [pulsar] lhotari commented on issue #9408: Flaky-test: org.apache.pulsar.broker.loadbalance.LoadBalancerTest.testLeaderElection

[GitBox]

lhotari commented on issue #9408:
URL: https://github.com/apache/pulsar/issues/9408#issuecomment-771552894


   This was the stacktrace for the NPE that I happened to come across. I wonder 
if this is a corner case at startup time. The NPE happened in a log statement. 
I just wonder why the stack is so deep.
   ```
   09:43:34.650 [metadata-store-1722-1] WARN  
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl - Exception in 
state change listener
   java.lang.NullPointerException: null
        at 
org.apache.pulsar.broker.PulsarService.lambda$startLeaderElectionService$3(PulsarService.java:731)
 ~[classes/:?]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$accept$12(LeaderElectionImpl.java:257)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_275]
        at 
org.apache.pulsar.metadata.coordination.impl.LeaderElectionImpl.lambda$null$9(LeaderElectionImpl.java:177)
 ~[pulsar-metadata-2.8.0-SNAPSHOT.jar:2.8.0-SNAPSHOT]
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
 ~[?:1.8.0_275]
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
 ~[?:1.8.0_275]
   ```


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