gaozhangmin opened a new issue #3094:
URL: https://github.com/apache/bookkeeper/issues/3094


   ```
   2022-03-11T18:13:59,886+0800 [ReplicationWorker] ERROR 
org.apache.bookkeeper.meta.ZkLedgerUnderreplicationManager - Error while 
checking the state of ledger re-replication
   org.apache.zookeeper.KeeperException$ConnectionLossException: 
KeeperErrorCode = ConnectionLoss for /test/ledgers/underreplication/disable
           at 
org.apache.zookeeper.KeeperException.create(KeeperException.java:102) 
~[org.apache.zookeeper-zookeeper-3.6.3.jar:3.6.3]
           at 
org.apache.zookeeper.KeeperException.create(KeeperException.java:54) 
~[org.apache.zookeeper-zookeeper-3.6.3.jar:3.6.3]
           at org.apache.zookeeper.ZooKeeper.exists(ZooKeeper.java:2256) 
~[org.apache.zookeeper-zookeeper-3.6.3.jar:3.6.3]
           at 
org.apache.bookkeeper.zookeeper.ZooKeeperClient.access$2301(ZooKeeperClient.java:70)
 ~[org.apache.bookkeeper-bookkeeper-server-4.14.3.jar:4.14.3]
           at 
org.apache.bookkeeper.zookeeper.ZooKeeperClient$13.call(ZooKeeperClient.java:833)
 ~[org.apache.bookkeeper-bookkeeper-server-4.14.3.jar:4.14.3]
           at 
org.apache.bookkeeper.zookeeper.ZooKeeperClient$13.call(ZooKeeperClient.java:827)
 ~[org.apache.bookkeeper-bookkeeper-server-4.14.3.jar:4.14.3]
           at 
org.apache.bookkeeper.zookeeper.ZooWorker.syncCallWithRetries(ZooWorker.java:140)
 ~[org.apache.bookkeeper-bookkeeper-server-4.14.3.jar:4.14.3]
           at 
org.apache.bookkeeper.zookeeper.ZooKeeperClient.exists(ZooKeeperClient.java:827)
 ~[org.apache.bookkeeper-bookkeeper-server-4.14.3.jar:4.14.3]
           at org.apache.zookeeper.ZooKeeper.exists(ZooKeeper.java:2281) 
~[org.apache.zookeeper-zookeeper-3.6.3.jar:3.6.3]
           at 
org.apache.bookkeeper.zookeeper.ZooKeeperClient.access$2401(ZooKeeperClient.java:70)
 ~[org.apache.bookkeeper-bookkeeper-server-4.14.3.jar:4.14.3]
           at 
org.apache.bookkeeper.zookeeper.ZooKeeperClient$14.call(ZooKeeperClient.java:854)
 ~[org.apache.bookkeeper-bookkeeper-server-4.14.3.jar:4.14.3]
           at 
org.apache.bookkeeper.zookeeper.ZooKeeperClient$14.call(ZooKeeperClient.java:848)
 ~[org.apache.bookkeeper-bookkeeper-server-4.14.3.jar:4.14.3]
           at 
org.apache.bookkeeper.zookeeper.ZooWorker.syncCallWithRetries(ZooWorker.java:140)
 ~[org.apache.bookkeeper-bookkeeper-server-4.14.3.jar:4.14.3]
           at 
org.apache.bookkeeper.zookeeper.ZooKeeperClient.exists(ZooKeeperClient.java:848)
 ~[org.apache.bookkeeper-bookkeeper-server-4.14.3.jar:4.14.3]
           at 
org.apache.bookkeeper.meta.ZkLedgerUnderreplicationManager.isLedgerReplicationEnabled(ZkLedgerUnderreplicationManager.java:727)
 [org.apache.bookkeeper-bookkeeper-server-4.14.3.jar:4.14.3]
           at 
org.apache.bookkeeper.meta.ZkLedgerUnderreplicationManager.waitIfLedgerReplicationDisabled(ZkLedgerUnderreplicationManager.java:622)
 [org.apache.bookkeeper-bookkeeper-server-4.14.3.jar:4.14.3]
           at 
org.apache.bookkeeper.meta.ZkLedgerUnderreplicationManager.getLedgerToRereplicate(ZkLedgerUnderreplicationManager.java:603)
 [org.apache.bookkeeper-bookkeeper-server-4.14.3.jar:4.14.3]
           at 
org.apache.bookkeeper.replication.ReplicationWorker.rereplicate(ReplicationWorker.java:264)
 [org.apache.bookkeeper-bookkeeper-server-4.14.3.jar:4.14.3]
           at 
org.apache.bookkeeper.replication.ReplicationWorker.run(ReplicationWorker.java:230)
 [org.apache.bookkeeper-bookkeeper-server-4.14.3.jar:4.14.3]
           at 
io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30)
 [io.netty-netty-common-4.1.72.Final.jar:4.1.72.Final]
           at java.lang.Thread.run(Thread.java:834) [?:?]
   2022-03-11T18:13:59,886+0800 [AuditorElector-10.90.32.30:3181] ERROR 
org.apache.bookkeeper.replication.AuditorElector - Exception while performing 
auditor election
   java.io.IOException: 
org.apache.zookeeper.KeeperException$ConnectionLossException: KeeperErrorCode = 
ConnectionLoss for /test/ledgers/underreplication/auditorelection/V_0000000001
           at 
org.apache.bookkeeper.meta.ZkLedgerAuditorManager.createMyVote(ZkLedgerAuditorManager.java:204)
 ~[org.apache.bookkeeper-bookkeeper-server-4.14.3.jar:4.14.3]
           at 
org.apache.bookkeeper.meta.ZkLedgerAuditorManager.tryToBecomeAuditor(ZkLedgerAuditorManager.java:98)
 ~[org.apache.bookkeeper-bookkeeper-server-4.14.3.jar:4.14.3]
           at 
org.apache.bookkeeper.replication.AuditorElector$3.run(AuditorElector.java:184) 
[org.apache.bookkeeper-bookkeeper-server-4.14.3.jar:4.14.3]
           at 
java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515) [?:?]
           at java.util.concurrent.FutureTask.run(FutureTask.java:264) [?:?]
           at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128) 
[?:?]
           at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628) 
[?:?]
           at java.lang.Thread.run(Thread.java:834) [?:?]
   Caused by: org.apache.zookeeper.KeeperException$ConnectionLossException: 
KeeperErrorCode = ConnectionLoss for 
/test/ledgers/underreplication/auditorelection/V_0000000001
           at 
org.apache.zookeeper.KeeperException.create(KeeperException.java:102) 
~[org.apache.zookeeper-zookeeper-3.6.3.jar:3.6.3]
           at 
org.apache.zookeeper.KeeperException.create(KeeperException.java:54) 
~[org.apache.zookeeper-zookeeper-3.6.3.jar:3.6.3]
           at org.apache.zookeeper.ZooKeeper.exists(ZooKeeper.java:2256) 
~[org.apache.zookeeper-zookeeper-3.6.3.jar:3.6.3]
           at 
org.apache.bookkeeper.zookeeper.ZooKeeperClient.access$2301(ZooKeeperClient.java:70)
 ~[org.apache.bookkeeper-bookkeeper-server-4.14.3.jar:4.14.3]
           at 
org.apache.bookkeeper.zookeeper.ZooKeeperClient$13.call(ZooKeeperClient.java:833)
 ~[org.apache.bookkeeper-bookkeeper-server-4.14.3.jar:4.14.3]
           at 
org.apache.bookkeeper.zookeeper.ZooKeeperClient$13.call(ZooKeeperClient.java:827)
 ~[org.apache.bookkeeper-bookkeeper-server-4.14.3.jar:4.14.3]
           at 
org.apache.bookkeeper.zookeeper.ZooWorker.syncCallWithRetries(ZooWorker.java:140)
 ~[org.apache.bookkeeper-bookkeeper-server-4.14.3.jar:4.14.3]
           at 
org.apache.bookkeeper.zookeeper.ZooKeeperClient.exists(ZooKeeperClient.java:827)
 ~[org.apache.bookkeeper-bookkeeper-server-4.14.3.jar:4.14.3]
           at org.apache.zookeeper.ZooKeeper.exists(ZooKeeper.java:2281) 
~[org.apache.zookeeper-zookeeper-3.6.3.jar:3.6.3]
           at 
org.apache.bookkeeper.zookeeper.ZooKeeperClient.access$2401(ZooKeeperClient.java:70)
 ~[org.apache.bookkeeper-bookkeeper-server-4.14.3.jar:4.14.3]
           at 
org.apache.bookkeeper.zookeeper.ZooKeeperClient$14.call(ZooKeeperClient.java:854)
 ~[org.apache.bookkeeper-bookkeeper-server-4.14.3.jar:4.14.3]
           at 
org.apache.bookkeeper.zookeeper.ZooKeeperClient$14.call(ZooKeeperClient.java:848)
 ~[org.apache.bookkeeper-bookkeeper-server-4.14.3.jar:4.14.3]
           at 
org.apache.bookkeeper.zookeeper.ZooWorker.syncCallWithRetries(ZooWorker.java:140)
 ~[org.apache.bookkeeper-bookkeeper-server-4.14.3.jar:4.14.3]
           at 
org.apache.bookkeeper.zookeeper.ZooKeeperClient.exists(ZooKeeperClient.java:848)
 ~[org.apache.bookkeeper-bookkeeper-server-4.14.3.jar:4.14.3]
           at 
org.apache.bookkeeper.meta.ZkLedgerAuditorManager.createMyVote(ZkLedgerAuditorManager.java:198)
 ~[org.apache.bookkeeper-bookkeeper-server-4.14.3.jar:4.14.3]
           ... 7 more
   2022-03-11T18:13:59,890+0800 [ReplicationWorker] ERROR 
org.apache.bookkeeper.replication.ReplicationWorker - UnavailableException 
while replicating fragments
   org.apache.bookkeeper.replication.ReplicationException$UnavailableException: 
Error contacting zookeeper
           at 
org.apache.bookkeeper.meta.ZkLedgerUnderreplicationManager.isLedgerReplicationEnabled(ZkLedgerUnderreplicationManager.java:732)
 ~[org.apache.bookkeeper-bookkeeper-server-4.14.3.jar:4.14.3]
           at 
org.apache.bookkeeper.meta.ZkLedgerUnderreplicationManager.waitIfLedgerReplicationDisabled(ZkLedgerUnderreplicationManager.java:622)
 ~[org.apache.bookkeeper-bookkeeper-server-4.14.3.jar:4.14.3]
           at 
org.apache.bookkeeper.meta.ZkLedgerUnderreplicationManager.getLedgerToRereplicate(ZkLedgerUnderreplicationManager.java:603)
 ~[org.apache.bookkeeper-bookkeeper-server-4.14.3.jar:4.14.3]
           at 
org.apache.bookkeeper.replication.ReplicationWorker.rereplicate(ReplicationWorker.java:264)
 ~[org.apache.bookkeeper-bookkeeper-server-4.14.3.jar:4.14.3]
           at 
org.apache.bookkeeper.replication.ReplicationWorker.run(ReplicationWorker.java:230)
 [org.apache.bookkeeper-bookkeeper-server-4.14.3.jar:4.14.3]
           at 
io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30)
 [io.netty-netty-common-4.1.72.Final.jar:4.1.72.Final]
           at java.lang.Thread.run(Thread.java:834) [?:?]
   Caused by: org.apache.zookeeper.KeeperException$ConnectionLossException: 
KeeperErrorCode = ConnectionLoss for /test/ledgers/underreplication/disable
           at 
org.apache.zookeeper.KeeperException.create(KeeperException.java:102) 
~[org.apache.zookeeper-zookeeper-3.6.3.jar:3.6.3]
           at 
org.apache.zookeeper.KeeperException.create(KeeperException.java:54) 
~[org.apache.zookeeper-zookeeper-3.6.3.jar:3.6.3]
           at org.apache.zookeeper.ZooKeeper.exists(ZooKeeper.java:2256) 
~[org.apache.zookeeper-zookeeper-3.6.3.jar:3.6.3]
           at 
org.apache.bookkeeper.zookeeper.ZooKeeperClient.access$2301(ZooKeeperClient.java:70)
 ~[org.apache.bookkeeper-bookkeeper-server-4.14.3.jar:4.14.3]
           at 
org.apache.bookkeeper.zookeeper.ZooKeeperClient$13.call(ZooKeeperClient.java:833)
 ~[org.apache.bookkeeper-bookkeeper-server-4.14.3.jar:4.14.3]
           at 
org.apache.bookkeeper.zookeeper.ZooKeeperClient$13.call(ZooKeeperClient.java:827)
 ~[org.apache.bookkeeper-bookkeeper-server-4.14.3.jar:4.14.3]
           at 
org.apache.bookkeeper.zookeeper.ZooWorker.syncCallWithRetries(ZooWorker.java:140)
 ~[org.apache.bookkeeper-bookkeeper-server-4.14.3.jar:4.14.3]
           at 
org.apache.bookkeeper.zookeeper.ZooKeeperClient.exists(ZooKeeperClient.java:827)
 ~[org.apache.bookkeeper-bookkeeper-server-4.14.3.jar:4.14.3]
           at org.apache.zookeeper.ZooKeeper.exists(ZooKeeper.java:2281) 
~[org.apache.zookeeper-zookeeper-3.6.3.jar:3.6.3]
           at 
org.apache.bookkeeper.zookeeper.ZooKeeperClient.access$2401(ZooKeeperClient.java:70)
 ~[org.apache.bookkeeper-bookkeeper-server-4.14.3.jar:4.14.3]
           at 
org.apache.bookkeeper.zookeeper.ZooKeeperClient$14.call(ZooKeeperClient.java:854)
 ~[org.apache.bookkeeper-bookkeeper-server-4.14.3.jar:4.14.3]
           at 
org.apache.bookkeeper.zookeeper.ZooKeeperClient$14.call(ZooKeeperClient.java:848)
 ~[org.apache.bookkeeper-bookkeeper-server-4.14.3.jar:4.14.3]
           at 
org.apache.bookkeeper.zookeeper.ZooWorker.syncCallWithRetries(ZooWorker.java:140)
 ~[org.apache.bookkeeper-bookkeeper-server-4.14.3.jar:4.14.3]
           at 
org.apache.bookkeeper.zookeeper.ZooKeeperClient.exists(ZooKeeperClient.java:848)
 ~[org.apache.bookkeeper-bookkeeper-server-4.14.3.jar:4.14.3]
           at 
org.apache.bookkeeper.meta.ZkLedgerUnderreplicationManager.isLedgerReplicationEnabled(ZkLedgerUnderreplicationManager.java:727)
 ~[org.apache.bookkeeper-bookkeeper-server-4.14.3.jar:4.14.3]
           ... 6 more
   2022-03-11T18:13:59,890+0800 [AuditorElector-10.90.32.30:3181] INFO  
org.apache.bookkeeper.meta.ZkLedgerAuditorManager - Shutting down AuditorElector
   2022-03-11T18:14:00,152+0800 [main-SendThread(kafka-perf-test003.ys:2181)] 
INFO  org.apache.zookeeper.ClientCnxn - Opening socket connection to server 
kafka-perf-test003.ys/10.89.236.58:2181.
   2022-03-11T18:14:00,153+0800 [main-SendThread(kafka-perf-test003.ys:2181)] 
INFO  org.apache.zookeeper.ClientCnxn - SASL config status: Will not attempt to 
authenticate using SASL (unknown error)
   2022-03-11T18:14:00,153+0800 [main-SendThread(kafka-perf-test003.ys:2181)] 
WARN  org.apache.zookeeper.ClientCnxn - Session 0x20e709b21d50002 for sever 
kafka-perf-test003.ys/10.89.236.58:2181, Closing socket connection. Attempting 
reconnect except it is a SessionExpiredException.
   java.net.ConnectException: Connection refused
           at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method) ~[?:?]
           at 
sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:779) ~[?:?]
           at 
org.apache.zookeeper.ClientCnxnSocketNIO.doTransport(ClientCnxnSocketNIO.java:344)
 ~[org.apache.zookeeper-zookeeper-3.6.3.jar:3.6.3]
           at 
org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1290) 
[org.apache.zookeeper-zookeeper-3.6.3.jar:3.6.3]
   2022-03-11T18:14:00,498+0800 [main-SendThread(kafka-perf-test002.ys:2181)] 
INFO  org.apache.zookeeper.ClientCnxn - Opening socket connection to server 
kafka-perf-test002.ys/10.90.32.30:2181.
   2022-03-11T18:14:00,498+0800 [main-SendThread(kafka-perf-test002.ys:2181)] 
INFO  org.apache.zookeeper.ClientCnxn - SASL config status: Will not attempt to 
authenticate using SASL (unknown error)
   2022-03-11T18:14:00,498+0800 [main-SendThread(kafka-perf-test002.ys:2181)] 
INFO  org.apache.zookeeper.ClientCnxn - Socket connection established, 
initiating session, client: /10.90.32.30:12734, server: 
kafka-perf-test002.ys/10.90.32.30:2181
   2022-03-11T18:14:00,500+0800 [main-SendThread(kafka-perf-test002.ys:2181)] 
INFO  org.apache.zookeeper.ClientCnxn - Session establishment complete on 
server kafka-perf-test002.ys/10.90.32.30:2181, session id = 0x20e709b21d50003, 
negotiated timeout = 30000
   2022-03-11T18:14:00,500+0800 [main-EventThread] INFO  
org.apache.bookkeeper.zookeeper.ZooKeeperWatcherBase - ZooKeeper client is 
connected now.
   2022-03-11T18:14:00,627+0800 [main-SendThread(kafka-perf-test003.ys:2181)] 
INFO  org.apache.zookeeper.ClientCnxn - Opening socket connection to server 
kafka-perf-test003.ys/10.89.236.58:2181.
   2022-03-11T18:14:00,627+0800 [main-SendThread(kafka-perf-test003.ys:2181)] 
INFO  org.apache.zookeeper.ClientCnxn - SASL config status: Will not attempt to 
authenticate using SASL (unknown error)
   2022-03-11T18:14:00,627+0800 [main-SendThread(kafka-perf-test003.ys:2181)] 
WARN  org.apache.zookeeper.ClientCnxn - Session 0x20e709b21d50001 for sever 
kafka-perf-test003.ys/10.89.236.58:2181, Closing socket connection. Attempting 
reconnect except it is a SessionExpiredException.
   java.net.ConnectException: Connection refused
           at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method) ~[?:?]
           at 
sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:779) ~[?:?]
           at 
org.apache.zookeeper.ClientCnxnSocketNIO.doTransport(ClientCnxnSocketNIO.java:344)
 ~[org.apache.zookeeper-zookeeper-3.6.3.jar:3.6.3]
           at 
org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1290) 
[org.apache.zookeeper-zookeeper-3.6.3.jar:3.6.3]
   2022-03-11T18:14:00,734+0800 [main-SendThread(kafka-perf-test003.ys:2181)] 
INFO  org.apache.zookeeper.ClientCnxn - Opening socket connection to server 
kafka-perf-test003.ys/10.89.236.58:2181.
   2022-03-11T18:14:00,734+0800 [main-SendThread(kafka-perf-test003.ys:2181)] 
INFO  org.apache.zookeeper.ClientCnxn - SASL config status: Will not attempt to 
authenticate using SASL (unknown error)
   2022-03-11T18:14:00,734+0800 [main-SendThread(kafka-perf-test003.ys:2181)] 
WARN  org.apache.zookeeper.ClientCnxn - Session 0x20e709b21d50004 for sever 
kafka-perf-test003.ys/10.89.236.58:2181, Closing socket connection. Attempting 
reconnect except it is a SessionExpiredException.
   java.net.ConnectException: Connection refused
           at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method) ~[?:?]
           at 
sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:779) ~[?:?]
           at 
org.apache.zookeeper.ClientCnxnSocketNIO.doTransport(ClientCnxnSocketNIO.java:344)
 ~[org.apache.zookeeper-zookeeper-3.6.3.jar:3.6.3]
           at 
org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1290) 
[org.apache.zookeeper-zookeeper-3.6.3.jar:3.6.3]
   2022-03-11T18:14:00,778+0800 [main-SendThread(kafka-perf-test002.ys:2181)] 
INFO  org.apache.zookeeper.ClientCnxn - Opening socket connection to server 
kafka-perf-test002.ys/10.90.32.30:2181.
   2022-03-11T18:14:00,778+0800 [main-SendThread(kafka-perf-test002.ys:2181)] 
INFO  org.apache.zookeeper.ClientCnxn - SASL config status: Will not attempt to 
authenticate using SASL (unknown error)
   2022-03-11T18:14:00,778+0800 [main-SendThread(kafka-perf-test002.ys:2181)] 
INFO  org.apache.zookeeper.ClientCnxn - Socket connection established, 
initiating session, client: /10.90.32.30:12752, server: 
kafka-perf-test002.ys/10.90.32.30:2181
   2022-03-11T18:14:00,780+0800 [main-SendThread(kafka-perf-test002.ys:2181)] 
INFO  org.apache.zookeeper.ClientCnxn - Session establishment complete on 
server kafka-perf-test002.ys/10.90.32.30:2181, session id = 0x3000fd2a4450006, 
negotiated timeout = 30000
   2022-03-11T18:14:00,780+0800 [main-EventThread] INFO  
org.apache.bookkeeper.zookeeper.ZooKeeperWatcherBase - ZooKeeper client is 
connected now.
   2022-03-11T18:14:00,804+0800 [AutoRecoveryDeathWatcher-3181] INFO  
org.apache.bookkeeper.replication.AutoRecoveryMain - AutoRecoveryDeathWatcher 
noticed the AutoRecovery is not running any more,exiting the watch loop!
   2022-03-11T18:14:00,805+0800 [AutoRecoveryDeathWatcher-3181] ERROR 
org.apache.bookkeeper.common.component.ComponentStarter - Triggered 
exceptionHandler of Component: bookie-server because of Exception in Thread: 
Thread[AutoRecoveryDeathWatcher-3181,5,main]
   java.lang.RuntimeException: AutoRecovery is not running any more
           at 
org.apache.bookkeeper.replication.AutoRecoveryMain$AutoRecoveryDeathWatcher.run(AutoRecoveryMain.java:237)
 ~[org.apache.bookkeeper-bookkeeper-server-4.14.3.jar:4.14.3]
   2022-03-11T18:14:00,805+0800 [component-shutdown-thread] INFO  
org.apache.bookkeeper.common.component.ComponentStarter - Closing component 
bookie-server in shutdown hook.
   2022-03-11T18:14:00,897+0800 [main-SendThread(kafka-perf-test002.ys:2181)] 
INFO  org.apache.zookeeper.ClientCnxn - Opening socket connection to server 
kafka-perf-test002.ys/10.90.32.30:2181.
   2022-03-11T18:14:00,898+0800 [main-SendThread(kafka-perf-test002.ys:2181)] 
INFO  org.apache.zookeeper.ClientCnxn - SASL config status: Will not attempt to 
authenticate using SASL (unknown error)
   2022-03-11T18:14:00,898+0800 [main-SendThread(kafka-perf-test002.ys:2181)] 
INFO  org.apache.zookeeper.ClientCnxn - Socket connection established, 
initiating session, client: /10.90.32.30:12758, server: 
kafka-perf-test002.ys/10.90.32.30:2181
   2022-03-11T18:14:00,900+0800 [main-SendThread(kafka-perf-test002.ys:2181)] 
INFO  org.apache.zookeeper.ClientCnxn - Session establishment complete on 
server kafka-perf-test002.ys/10.90.32.30:2181, session id = 0x20e709b21d50002, 
negotiated timeout = 30000
   2022-03-11T18:14:00,901+0800 [main-EventThread] INFO  
org.apache.pulsar.zookeeper.ZooKeeperDataCache - [State:CONNECTED Timeout:30000 
sessionid:0x20e709b21d50002 local:/10.90.32.30:12758 
remoteserver:kafka-perf-test002.ys/10.90.32.30:2181 lastZxid:42955488541 xid:4 
sent:60 recv:59 queuedpkts:0 pendingresp:1 queuedevents:0] Received ZooKeeper 
watch event: WatchedEvent state:SyncConnected type:None path:null
   2022-03-11T18:14:00,901+0800 [main-EventThread] INFO  
org.apache.bookkeeper.zookeeper.ZooKeeperWatcherBase - ZooKeeper client is 
connected now.
   2022-03-11T18:14:00,952+0800 [main-EventThread] INFO  
org.apache.zookeeper.ClientCnxn - EventThread shut down for session: 
0x20e709b21d50003
   2022-03-11T18:14:00,952+0800 [component-shutdown-thread] INFO  
org.apache.zookeeper.ZooKeeper - Session: 0x20e709b21d50003 closed
   2022-03-11T18:14:01,022+0800 [vert.x-eventloop-thread-80] INFO  
org.apache.bookkeeper.http.vertx.VertxHttpServer - HTTP server is shutdown
   2022-03-11T18:14:01,022+0800 [component-shutdown-thread] INFO  
org.apache.bookkeeper.replication.AutoRecoveryMain - Shutting down auto 
recovery: 0
   2022-03-11T18:14:01,022+0800 [component-shutdown-thread] INFO  
org.apache.bookkeeper.replication.AutoRecoveryMain - Shutting down AutoRecovery
   ```


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