nodece commented on issue #13211:
URL: https://github.com/apache/pulsar/issues/13211#issuecomment-1015468082
You are right, the following is thread log of callback process:
```
"main-EventThread" prio=0 tid=0x0 nid=0x0 waiting on condition
java.lang.Thread.State: WAITING
on java.util.concurrent.CompletableFuture$Signaller@6b36f41b
at [email protected]/jdk.internal.misc.Unsafe.park(Native Method)
at
[email protected]/java.util.concurrent.locks.LockSupport.park(LockSupport.java:194)
at
[email protected]/java.util.concurrent.CompletableFuture$Signaller.block(CompletableFuture.java:1796)
at
[email protected]/java.util.concurrent.ForkJoinPool.managedBlock(ForkJoinPool.java:3128)
at
[email protected]/java.util.concurrent.CompletableFuture.waitingGet(CompletableFuture.java:1823)
at
[email protected]/java.util.concurrent.CompletableFuture.join(CompletableFuture.java:2043)
at
app//org.apache.pulsar.broker.web.PulsarWebResource.validateTopicOwnership(PulsarWebResource.java:605)
at
app//org.apache.pulsar.broker.admin.impl.PersistentTopicsBase.internalTriggerCompactionNonPartitionedTopic(PersistentTopicsBase.java:3627)
at
app//org.apache.pulsar.broker.admin.impl.PersistentTopicsBase.lambda$internalTriggerCompaction$171(PersistentTopicsBase.java:3602)
at
app//org.apache.pulsar.broker.admin.impl.PersistentTopicsBase$$Lambda$930/0x00000008009f0440.accept(Unknown
Source)
at
[email protected]/java.util.concurrent.CompletableFuture$UniAccept.tryFire$$$capture(CompletableFuture.java:714)
at
[email protected]/java.util.concurrent.CompletableFuture$UniAccept.tryFire(CompletableFuture.java)
at
[email protected]/java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:506)
at
[email protected]/java.util.concurrent.CompletableFuture.complete(CompletableFuture.java:2073)
at
app//org.apache.pulsar.metadata.impl.ZKMetadataStore.handleGetResult(ZKMetadataStore.java:227)
at
app//org.apache.pulsar.metadata.impl.ZKMetadataStore.lambda$batchOperation$6(ZKMetadataStore.java:177)
at
app//org.apache.pulsar.metadata.impl.ZKMetadataStore$$Lambda$479/0x00000008006cb440.processResult(Unknown
Source)
at
app//org.apache.pulsar.metadata.impl.PulsarZooKeeperClient$3$1.processResult(PulsarZooKeeperClient.java:490)
at
app//org.apache.zookeeper.ClientCnxn$EventThread.processEvent(ClientCnxn.java:722)
at
app//org.apache.zookeeper.ClientCnxn$EventThread.run(ClientCnxn.java:563)
```
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