Ok, happy to hear if the information helped.
Good luck and enjoy using ZooKeeper ;)

Mate

On Wed, Mar 3, 2021, 18:18 Jhanssen Fávaro <[email protected]> wrote:

> Hi Mate, thank you again!
> These bug links cleared a lot to us and  will help a lot!!!
>
> Yeah looks like that we're probably being caught by one of these BUGs.
> Anyway, we'll take a closer look in each of the BUGs related by.
>
> About kubernetes, we're not using. Only clients(application connecting to
> zookeeper/kafka). Our ZK are running on VMWare VMs.
>
> And yes, this is very rare to replicated issue, normally only during
> VMWare patches/host reboots we face it, and not always.
>
> We have a SDN defined SNX(VMWare), so a lot of variables on the table.
>
> Anyway, by now, we just would like to say thank you. And we'll decide
> wether open the jira or not, but you'll be notified for sure as soon as we
> open.
>
> Thank you!
>
> On 2021/03/03 08:38:43, Szalay-Bekő Máté <[email protected]>
> wrote:
> > Thanks for the logs!
> >
> > I'm far for digging deep enough (unfortunately I don't have much time
> right
> > now). A few observations:
> >
> > (1)
> > Looks like we have a problem with the order of the leader election
> > notifications. Here for example we get the message from round 0xf8 before
> > the one from the previous round (0xf7):
> > I would assume the leader election protocol should handle this (although
> I
> > haven't checked this).
> >
> > 2021-02-27 11:42:39,432] INFO Notification: 2 (message format version),
> 102
> > (n.leader), 0x2800000866 (n.zxid), 0xf8 (n.round), LOOKING (n.state), 102
> > (n.sid), 0x28 (n.peerEPoch), FOLLOWING (my state)0 (n.config
> > version) (org.apache.zookeeper.server.quorum.FastLeaderElection)
> > [2021-02-27 11:42:39,434] INFO Notification: 2 (message format
> > version), 103 (n.leader), 0x2700000611 (n.zxid), 0xf7 (n.round),
> FOLLOWING
> > (n.state), 102 (n.sid), 0x28 (n.peerEPoch), FOLLOWING (my state)0
> (n.config
> > version) (org.apache.zookeeper.server.quorum.FastLeaderElection)
> >
> > We saw cases when the kubernetes networking mesh was slow to propagate a
> > socket close between quorum members and this caused problems. I wonder if
> > this would be some similar issue...
> > If this is indeed some Kubernetes specific issue, then it will be hard to
> > reproduce. But we can give a try.
> >
> > (2)
> > In the leader election started on 2021-02-28 09:11:38,133, we see that
> the
> > server (id=111) sent out notifications, but haven't received any from the
> > other servers. We should check the logs of the other two servers, check
> if
> > they even get the notifications.
> >
> > We saw cases (e.g. ZOOKEEPER-3769 fixed in 3.5.8) when the other server
> > hasn't received the notification due to some receiver thread dying. E.g.
> we
> > could check the other servers for log message:
> > 03/24/20 11:16:16,297 [WorkerReceiver[myid=1]] ERROR
> > [org.apache.zookeeper.server.NIOServerCnxnFactory]
> > (NIOServerCnxnFactory.java:92) - Thread
> > Thread[WorkerReceiver[myid=1],5,main] died
> >
> > There were some other related changes in more recent ZooKeeper versions
> > (ZOOKEEPER-3756, ZOOKEEPER-2164). So it is possible that if you upgrade
> to
> > a more recent ZooKeeper version, then you won't see this problem again.
> But
> > it is hard to tell, until we found out what exactly happened.
> >
> > I think it would be good to create a new Jira ticket for this. Could you
> > maybe create it, and also attach all the logs from the three ZooKeeper
> > servers since the last restart? Also, can you attach the ZooKeeper
> > configuration?
> >
> > Please ping me on the ticket or assign it to me and I'm happy to check
> this
> > further. (although I will be slow due to other projects)
> >
> > Best Regards,
> > Mate
> >
> > On Tue, Mar 2, 2021 at 12:51 PM Jhanssen Fávaro <
> [email protected]>
> > wrote:
> >
> > > Hi, Mate! Thanks by the reply!
> > >
> > > > Which ZooKeeper version are youusing?
> > > This is the current ZK Version we're using, "*INFO Server
> > > environment:zookeeper.version=3.5.7*". We're still planning the
> migration
> > > to 3.6 in a few weeks.
> > >
> > > > 2021-02-28 09:11:38,119 and after the previous successful leader
> > > election?
> > > Sure, follow the logs, but after our last restart (  [2021-02-18
> > > 11:38:34,316]  ) there was only one exception/wan(Sorry by the flooding
> > > logs):
> > >
> > >
> > >
> > > *#############################################################All
> messages
> > > before these were related to Purge task started / Purge task completed.
> > > #############################################################*
> > > [2021-02-27 08:38:33,007] INFO Purge task completed.
> > > (org.apache.zookeeper.server.DatadirCleanupManager)
> > > [2021-02-27 09:38:33,005] INFO Purge task started.
> > > (org.apache.zookeeper.server.DatadirCleanupManager)
> > > [2021-02-27 09:38:33,006] INFO zookeeper.snapshot.trust.empty : false
> > > (org.apache.zookeeper.server.persistence.FileTxnSnapLog)
> > > [2021-02-27 09:38:33,006] INFO Purge task completed.
> > > (org.apache.zookeeper.server.DatadirCleanupManager)
> > > [2021-02-27 10:38:33,006] INFO Purge task started.
> > > (org.apache.zookeeper.server.DatadirCleanupManager)
> > > [2021-02-27 10:38:33,006] INFO zookeeper.snapshot.trust.empty : false
> > > (org.apache.zookeeper.server.persistence.FileTxnSnapLog)
> > > [2021-02-27 10:38:33,007] INFO Purge task completed.
> > > (org.apache.zookeeper.server.DatadirCleanupManager)
> > > [2021-02-27 11:38:33,005] INFO Purge task started.
> > > (org.apache.zookeeper.server.DatadirCleanupManager)
> > > [2021-02-27 11:38:33,006] INFO zookeeper.snapshot.trust.empty : false
> > > (org.apache.zookeeper.server.persistence.FileTxnSnapLog)
> > > [2021-02-27 11:38:33,006] INFO Purge task completed.
> > > (org.apache.zookeeper.server.DatadirCleanupManager)
> > > [2021-02-27 11:42:39,139] INFO Received connection request from /
> > > 10.1.1.93:43572 (org.apache.zookeeper.server.quorum.QuorumCnxManager)
> > > [2021-02-27 11:42:39,293] INFO Accepted TLS connection from
> > > zk-xpto-b7.production.com/10.1.1.93:43572 - TLSv1.2 -
> > > TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256
> > > (org.apache.zookeeper.server.quorum.UnifiedServerSocket)
> > > [2021-02-27 11:42:39,298] INFO Successfully authenticated learner:
> > > authenticationID=quorum-zkxpto-prod;
> authorizationID=quorum-zkxpto-prod.
> > >
> (org.apache.zookeeper.server.quorum.auth.SaslQuorumServerCallbackHandler)
> > > [2021-02-27 11:42:39,299] INFO Successfully completed the
> authentication
> > > using SASL. learner addr: zk-xpto-b7.production.com/10.1.1.93:43572
> > > (org.apache.zookeeper.server.quorum.auth.SaslQuorumAuthServer)
> > > [2021-02-27 11:42:39,301] WARN Interrupted while waiting for message on
> > > queue (org.apache.zookeeper.server.quorum.QuorumCnxManager)
> > > java.lang.InterruptedException
> > >         at
> > >
> > >
> java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.reportInterruptAfterWait(AbstractQueuedSynchronizer.java:2014)
> > >         at
> > >
> > >
> java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.awaitNanos(AbstractQueuedSynchronizer.java:2088)
> > >         at
> > >
> java.util.concurrent.ArrayBlockingQueue.poll(ArrayBlockingQueue.java:418)
> > >         at
> > >
> > >
> org.apache.zookeeper.server.quorum.QuorumCnxManager.pollSendQueue(QuorumCnxManager.java:1308)
> > >         at
> > >
> > >
> org.apache.zookeeper.server.quorum.QuorumCnxManager.access$700(QuorumCnxManager.java:85)
> > >         at
> > >
> > >
> org.apache.zookeeper.server.quorum.QuorumCnxManager$SendWorker.run(QuorumCnxManager.java:1143)
> > > [2021-02-27 11:42:39,304] WARN Send worker leaving thread  id 102 my
> id =
> > > 111 (org.apache.zookeeper.server.quorum.QuorumCnxManager)
> > > [2021-02-27 11:42:39,303] WARN Connection broken for id 102, my id =
> 111,
> > > error =  (org.apache.zookeeper.server.quorum.QuorumCnxManager)
> > > javax.net.ssl.SSLException: Socket closed
> > >         at sun.security.ssl.Alert.createSSLException(Alert.java:127)
> > >         at
> > > sun.security.ssl.TransportContext.fatal(TransportContext.java:324)
> > >         at
> > > sun.security.ssl.TransportContext.fatal(TransportContext.java:267)
> > >         at
> > > sun.security.ssl.TransportContext.fatal(TransportContext.java:262)
> > >         at
> > > sun.security.ssl.SSLSocketImpl.handleException(SSLSocketImpl.java:1303)
> > >         at
> sun.security.ssl.SSLSocketImpl.access$300(SSLSocketImpl.java:72)
> > >         at
> > >
> sun.security.ssl.SSLSocketImpl$AppInputStream.read(SSLSocketImpl.java:831)
> > >         at
> java.io.BufferedInputStream.fill(BufferedInputStream.java:246)
> > >         at
> java.io.BufferedInputStream.read(BufferedInputStream.java:265)
> > >         at java.io.DataInputStream.readInt(DataInputStream.java:387)
> > >         at
> > >
> > >
> org.apache.zookeeper.server.quorum.QuorumCnxManager$RecvWorker.run(QuorumCnxManager.java:1226)
> > > Caused by: java.net.SocketException: Socket closed
> > >         at java.net.SocketInputStream.socketRead0(Native Method)
> > >         at
> > > java.net.SocketInputStream.socketRead(SocketInputStream.java:116)
> > >         at java.net.SocketInputStream.read(SocketInputStream.java:171)
> > >         at java.net.SocketInputStream.read(SocketInputStream.java:141)
> > >         at
> > >
> sun.security.ssl.SSLSocketInputRecord.read(SSLSocketInputRecord.java:457)
> > >         at
> > >
> > >
> sun.security.ssl.SSLSocketInputRecord.bytesInCompletePacket(SSLSocketInputRecord.java:68)
> > >         at
> > >
> > >
> sun.security.ssl.SSLSocketImpl.readApplicationRecord(SSLSocketImpl.java:1095)
> > >         at
> sun.security.ssl.SSLSocketImpl.access$200(SSLSocketImpl.java:72)
> > >         at
> > >
> sun.security.ssl.SSLSocketImpl$AppInputStream.read(SSLSocketImpl.java:815)
> > >         ... 4 more
> > > [2021-02-27 11:42:39,312] WARN Interrupting SendWorker thread from
> > > RecvWorker. sid: 102. myId: 111
> > > (org.apache.zookeeper.server.quorum.QuorumCnxManager)
> > > [2021-02-27 11:42:39,425] INFO SSL handshake complete with
> > > zk-xpto-b7.production.com/10.1.1.93:3888 - TLSv1.2 -
> > > TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256
> > > (org.apache.zookeeper.server.quorum.QuorumCnxManager)
> > > [2021-02-27 11:42:39,425] INFO QuorumLearner will use DIGEST-MD5 as
> SASL
> > > mechanism.
> (org.apache.zookeeper.server.quorum.auth.SaslQuorumAuthLearner)
> > > [2021-02-27 11:42:39,429] INFO Successfully completed the
> authentication
> > > using SASL. server addr: zk-xpto-b7.production.com/10.1.1.93:3888,
> status:
> > > SUCCESS (org.apache.zookeeper.server.quorum.auth.SaslQuorumAuthLearner)
> > > [2021-02-27 11:42:39,432] INFO Notification: 2 (message format
> version),
> > > 102 (n.leader), 0x2800000866 (n.zxid), 0xf8 (n.round), LOOKING
> (n.state),
> > > 102 (n.sid), 0x28 (n.peerEPoch), FOLLOWING (my state)0 (n.config
> version)
> > > (org.apache.zookeeper.server.quorum.FastLeaderElection)
> > > [2021-02-27 11:42:39,434] INFO Notification: 2 (message format
> version),
> > > 103 (n.leader), 0x2700000611 (n.zxid), 0xf7 (n.round), FOLLOWING
> (n.state),
> > > 102 (n.sid), 0x28 (n.peerEPoch), FOLLOWING (my state)0 (n.config
> version)
> > > (org.apache.zookeeper.server.quorum.FastLeaderElection)
> > > [2021-02-27 12:29:51,962] INFO Received connection request from /
> > > 10.1.1.92:35532 (org.apache.zookeeper.server.quorum.QuorumCnxManager)
> > > [2021-02-27 12:29:52,084] INFO Accepted TLS connection from
> > > 10.1.1.92:35532
> > > - TLSv1.2 - TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256
> > > (org.apache.zookeeper.server.quorum.UnifiedServerSocket)
> > > [2021-02-27 12:29:52,088] INFO Successfully authenticated learner:
> > > authenticationID=quorum-zkxpto-prod;
> authorizationID=quorum-zkxpto-prod.
> > >
> (org.apache.zookeeper.server.quorum.auth.SaslQuorumServerCallbackHandler)
> > > [2021-02-27 12:29:52,088] INFO Successfully completed the
> authentication
> > > using SASL. learner addr: zk-xpto-ae.production.com/10.1.1.92:35532
> > > (org.apache.zookeeper.server.quorum.auth.SaslQuorumAuthServer)
> > > [2021-02-27 12:29:52,088] WARN Interrupted while waiting for message on
> > > queue (org.apache.zookeeper.server.quorum.QuorumCnxManager)
> > > java.lang.InterruptedException
> > >         at
> > >
> > >
> java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.reportInterruptAfterWait(AbstractQueuedSynchronizer.java:2014)
> > >         at
> > >
> > >
> java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.awaitNanos(AbstractQueuedSynchronizer.java:2088)
> > >         at
> > >
> java.util.concurrent.ArrayBlockingQueue.poll(ArrayBlockingQueue.java:418)
> > >         at
> > >
> > >
> org.apache.zookeeper.server.quorum.QuorumCnxManager.pollSendQueue(QuorumCnxManager.java:1308)
> > >         at
> > >
> > >
> org.apache.zookeeper.server.quorum.QuorumCnxManager.access$700(QuorumCnxManager.java:85)
> > >         at
> > >
> > >
> org.apache.zookeeper.server.quorum.QuorumCnxManager$SendWorker.run(QuorumCnxManager.java:1143)
> > > [2021-02-27 12:29:52,088] WARN Connection broken for id 104, my id =
> 111,
> > > error =  (org.apache.zookeeper.server.quorum.QuorumCnxManager)
> > > javax.net.ssl.SSLException: Socket closed
> > >         at sun.security.ssl.Alert.createSSLException(Alert.java:127)
> > >         at
> > > sun.security.ssl.TransportContext.fatal(TransportContext.java:324)
> > >         at
> > > sun.security.ssl.TransportContext.fatal(TransportContext.java:267)
> > >         at
> > > sun.security.ssl.TransportContext.fatal(TransportContext.java:262)
> > >         at
> > > sun.security.ssl.SSLSocketImpl.handleException(SSLSocketImpl.java:1303)
> > >         at
> sun.security.ssl.SSLSocketImpl.access$300(SSLSocketImpl.java:72)
> > >         at
> > >
> sun.security.ssl.SSLSocketImpl$AppInputStream.read(SSLSocketImpl.java:831)
> > >         at
> java.io.BufferedInputStream.fill(BufferedInputStream.java:246)
> > >         at
> java.io.BufferedInputStream.read(BufferedInputStream.java:265)
> > >         at java.io.DataInputStream.readInt(DataInputStream.java:387)
> > >         at
> > >
> > >
> org.apache.zookeeper.server.quorum.QuorumCnxManager$RecvWorker.run(QuorumCnxManager.java:1226)
> > > Caused by: java.net.SocketException: Socket closed
> > >         at java.net.SocketInputStream.socketRead0(Native Method)
> > >         at
> > > java.net.SocketInputStream.socketRead(SocketInputStream.java:116)
> > >         at java.net.SocketInputStream.read(SocketInputStream.java:171)
> > >         at java.net.SocketInputStream.read(SocketInputStream.java:141)
> > >         at
> > >
> sun.security.ssl.SSLSocketInputRecord.read(SSLSocketInputRecord.java:457)
> > >         at
> > >
> > >
> sun.security.ssl.SSLSocketInputRecord.bytesInCompletePacket(SSLSocketInputRecord.java:68)
> > >         at
> > >
> > >
> sun.security.ssl.SSLSocketImpl.readApplicationRecord(SSLSocketImpl.java:1095)
> > >         at
> sun.security.ssl.SSLSocketImpl.access$200(SSLSocketImpl.java:72)
> > >         at
> > >
> sun.security.ssl.SSLSocketImpl$AppInputStream.read(SSLSocketImpl.java:815)
> > >         ... 4 more
> > > [2021-02-27 12:29:52,089] WARN Interrupting SendWorker thread from
> > > RecvWorker. sid: 104. myId: 111
> > > (org.apache.zookeeper.server.quorum.QuorumCnxManager)
> > > [2021-02-27 12:29:52,089] WARN Send worker leaving thread  id 104 my
> id =
> > > 111 (org.apache.zookeeper.server.quorum.QuorumCnxManager)
> > > [2021-02-27 12:29:53,213] INFO SSL handshake complete with
> > > zk-xpto-ae.production.com/10.1.1.92:3888 - TLSv1.2 -
> > > TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256
> > > (org.apache.zookeeper.server.quorum.QuorumCnxManager)
> > > [2021-02-27 12:29:53,214] INFO QuorumLearner will use DIGEST-MD5 as
> SASL
> > > mechanism.
> (org.apache.zookeeper.server.quorum.auth.SaslQuorumAuthLearner)
> > > [2021-02-27 12:29:53,219] INFO Successfully completed the
> authentication
> > > using SASL. server addr: zk-xpto-ae.production.com/10.1.1.92:3888,
> status:
> > > SUCCESS (org.apache.zookeeper.server.quorum.auth.SaslQuorumAuthLearner)
> > > [2021-02-27 12:29:53,228] INFO Notification: 2 (message format
> version),
> > > 104 (n.leader), 0x280000093d (n.zxid), 0xf8 (n.round), LOOKING
> (n.state),
> > > 104 (n.sid), 0x28 (n.peerEPoch), FOLLOWING (my state)0 (n.config
> version)
> > > (org.apache.zookeeper.server.quorum.FastLeaderElection)
> > > [2021-02-27 12:29:53,230] INFO Notification: 2 (message format
> version),
> > > 103 (n.leader), 0x2700000611 (n.zxid), 0xf7 (n.round), FOLLOWING
> (n.state),
> > > 104 (n.sid), 0x28 (n.peerEPoch), FOLLOWING (my state)0 (n.config
> version)
> > > (org.apache.zookeeper.server.quorum.FastLeaderElection)
> > > [2021-02-27 12:38:33,006] INFO Purge task started.
> > > (org.apache.zookeeper.server.DatadirCleanupManager)
> > > [2021-02-27 12:38:33,006] INFO zookeeper.snapshot.trust.empty : false
> > > (org.apache.zookeeper.server.persistence.FileTxnSnapLog)
> > > [2021-02-27 12:38:33,006] INFO Purge task completed.
> > > (org.apache.zookeeper.server.DatadirCleanupManager)
> > > [2021-02-27 12:54:31,627] INFO Notification: 2 (message format
> version),
> > > 104 (n.leader), 0x2800000aa1 (n.zxid), 0xf8 (n.round), LOOKING
> (n.state),
> > > 104 (n.sid), 0x28 (n.peerEPoch), FOLLOWING (my state)0 (n.config
> version)
> > > (org.apache.zookeeper.server.quorum.FastLeaderElection)
> > > [2021-02-27 12:54:31,663] INFO Notification: 2 (message format
> version),
> > > 102 (n.leader), 0x2800000aa1 (n.zxid), 0xf8 (n.round), LOOKING
> (n.state),
> > > 102 (n.sid), 0x28 (n.peerEPoch), FOLLOWING (my state)0 (n.config
> version)
> > > (org.apache.zookeeper.server.quorum.FastLeaderElection)
> > > [2021-02-27 13:38:33,006] INFO Purge task started.
> > > (org.apache.zookeeper.server.DatadirCleanupManager)
> > > [2021-02-27 13:38:33,006] INFO zookeeper.snapshot.trust.empty : false
> > > (org.apache.zookeeper.server.persistence.FileTxnSnapLog)
> > > [2021-02-27 13:38:33,006] INFO Purge task completed.
> > > (org.apache.zookeeper.server.DatadirCleanupManager)
> > > [2021-02-27 14:38:33,006] INFO Purge task started.
> > > (org.apache.zookeeper.server.DatadirCleanupManager)
> > > [2021-02-27 14:38:33,006] INFO zookeeper.snapshot.trust.empty : false
> > > (org.apache.zookeeper.server.persistence.FileTxnSnapLog)
> > > [2021-02-27 14:38:33,007] INFO Purge task completed.
> > > (org.apache.zookeeper.server.DatadirCleanupManager)
> > > [2021-02-27 15:38:33,005] INFO Purge task started.
> > > (org.apache.zookeeper.server.DatadirCleanupManager)
> > > [2021-02-27 15:38:33,005] INFO zookeeper.snapshot.trust.empty : false
> > > (org.apache.zookeeper.server.persistence.FileTxnSnapLog)
> > > [2021-02-27 15:38:33,006] INFO Purge task completed.
> > > (org.apache.zookeeper.server.DatadirCleanupManager)
> > > [2021-02-27 16:38:33,005] INFO Purge task started.
> > > (org.apache.zookeeper.server.DatadirCleanupManager)
> > > [2021-02-27 16:38:33,005] INFO zookeeper.snapshot.trust.empty : false
> > > (org.apache.zookeeper.server.persistence.FileTxnSnapLog)
> > > [2021-02-27 16:38:33,006] INFO Purge task completed.
> > > (org.apache.zookeeper.server.DatadirCleanupManager)
> > > [2021-02-27 17:38:33,005] INFO Purge task started.
> > > (org.apache.zookeeper.server.DatadirCleanupManager)
> > > [2021-02-27 17:38:33,006] INFO zookeeper.snapshot.trust.empty : false
> > > (org.apache.zookeeper.server.persistence.FileTxnSnapLog)
> > > [2021-02-27 17:38:33,006] INFO Purge task completed.
> > > (org.apache.zookeeper.server.DatadirCleanupManager)
> > > [2021-02-27 18:38:33,005] INFO Purge task started.
> > > (org.apache.zookeeper.server.DatadirCleanupManager)
> > > [2021-02-27 18:38:33,006] INFO zookeeper.snapshot.trust.empty : false
> > > (org.apache.zookeeper.server.persistence.FileTxnSnapLog)
> > > [2021-02-27 18:38:33,006] INFO Purge task completed.
> > > (org.apache.zookeeper.server.DatadirCleanupManager)
> > > [2021-02-27 19:38:33,006] INFO Purge task started.
> > > (org.apache.zookeeper.server.DatadirCleanupManager)
> > > [2021-02-27 19:38:33,006] INFO zookeeper.snapshot.trust.empty : false
> > > (org.apache.zookeeper.server.persistence.FileTxnSnapLog)
> > > [2021-02-27 19:38:33,007] INFO Purge task completed.
> > > (org.apache.zookeeper.server.DatadirCleanupManager)
> > > [2021-02-27 20:38:33,005] INFO Purge task started.
> > > (org.apache.zookeeper.server.DatadirCleanupManager)
> > > [2021-02-27 20:38:33,006] INFO zookeeper.snapshot.trust.empty : false
> > > (org.apache.zookeeper.server.persistence.FileTxnSnapLog)
> > > [2021-02-27 20:38:33,006] INFO Purge task completed.
> > > (org.apache.zookeeper.server.DatadirCleanupManager)
> > > [2021-02-27 21:38:33,005] INFO Purge task started.
> > > (org.apache.zookeeper.server.DatadirCleanupManager)
> > > [2021-02-27 21:38:33,006] INFO zookeeper.snapshot.trust.empty : false
> > > (org.apache.zookeeper.server.persistence.FileTxnSnapLog)
> > > [2021-02-27 21:38:33,007] INFO Purge task completed.
> > > (org.apache.zookeeper.server.DatadirCleanupManager)
> > > [2021-02-27 22:38:33,005] INFO Purge task started.
> > > (org.apache.zookeeper.server.DatadirCleanupManager)
> > > [2021-02-27 22:38:33,006] INFO zookeeper.snapshot.trust.empty : false
> > > (org.apache.zookeeper.server.persistence.FileTxnSnapLog)
> > > [2021-02-27 22:38:33,007] INFO Purge task completed.
> > > (org.apache.zookeeper.server.DatadirCleanupManager)
> > > [2021-02-27 23:38:33,005] INFO Purge task started.
> > > (org.apache.zookeeper.server.DatadirCleanupManager)
> > > [2021-02-27 23:38:33,005] INFO zookeeper.snapshot.trust.empty : false
> > > (org.apache.zookeeper.server.persistence.FileTxnSnapLog)
> > > [2021-02-27 23:38:33,006] INFO Purge task completed.
> > > (org.apache.zookeeper.server.DatadirCleanupManager)
> > > [2021-02-28 00:38:33,005] INFO Purge task started.
> > > (org.apache.zookeeper.server.DatadirCleanupManager)
> > > [2021-02-28 00:38:33,006] INFO zookeeper.snapshot.trust.empty : false
> > > (org.apache.zookeeper.server.persistence.FileTxnSnapLog)
> > > [2021-02-28 00:38:33,006] INFO Purge task completed.
> > > (org.apache.zookeeper.server.DatadirCleanupManager)
> > > [2021-02-28 01:38:33,005] INFO Purge task started.
> > > (org.apache.zookeeper.server.DatadirCleanupManager)
> > > [2021-02-28 01:38:33,005] INFO zookeeper.snapshot.trust.empty : false
> > > (org.apache.zookeeper.server.persistence.FileTxnSnapLog)
> > > [2021-02-28 01:38:33,006] INFO Purge task completed.
> > > (org.apache.zookeeper.server.DatadirCleanupManager)
> > > [2021-02-28 02:38:33,005] INFO Purge task started.
> > > (org.apache.zookeeper.server.DatadirCleanupManager)
> > > [2021-02-28 02:38:33,006] INFO zookeeper.snapshot.trust.empty : false
> > > (org.apache.zookeeper.server.persistence.FileTxnSnapLog)
> > > [2021-02-28 02:38:33,006] INFO Purge task completed.
> > > (org.apache.zookeeper.server.DatadirCleanupManager)
> > > [2021-02-28 03:38:33,006] INFO Purge task started.
> > > (org.apache.zookeeper.server.DatadirCleanupManager)
> > > [2021-02-28 03:38:33,006] INFO zookeeper.snapshot.trust.empty : false
> > > (org.apache.zookeeper.server.persistence.FileTxnSnapLog)
> > > [2021-02-28 03:38:33,007] INFO Purge task completed.
> > > (org.apache.zookeeper.server.DatadirCleanupManager)
> > > [2021-02-28 04:38:33,005] INFO Purge task started.
> > > (org.apache.zookeeper.server.DatadirCleanupManager)
> > > [2021-02-28 04:38:33,005] INFO zookeeper.snapshot.trust.empty : false
> > > (org.apache.zookeeper.server.persistence.FileTxnSnapLog)
> > > [2021-02-28 04:38:33,006] INFO Purge task completed.
> > > (org.apache.zookeeper.server.DatadirCleanupManager)
> > > [2021-02-28 05:38:33,005] INFO Purge task started.
> > > (org.apache.zookeeper.server.DatadirCleanupManager)
> > > [2021-02-28 05:38:33,006] INFO zookeeper.snapshot.trust.empty : false
> > > (org.apache.zookeeper.server.persistence.FileTxnSnapLog)
> > > [2021-02-28 05:38:33,006] INFO Purge task completed.
> > > (org.apache.zookeeper.server.DatadirCleanupManager)
> > > [2021-02-28 06:38:33,006] INFO Purge task started.
> > > (org.apache.zookeeper.server.DatadirCleanupManager)
> > > [2021-02-28 06:38:33,006] INFO zookeeper.snapshot.trust.empty : false
> > > (org.apache.zookeeper.server.persistence.FileTxnSnapLog)
> > > [2021-02-28 06:38:33,007] INFO Purge task completed.
> > > (org.apache.zookeeper.server.DatadirCleanupManager)
> > > [2021-02-28 07:38:33,005] INFO Purge task started.
> > > (org.apache.zookeeper.server.DatadirCleanupManager)
> > > [2021-02-28 07:38:33,005] INFO zookeeper.snapshot.trust.empty : false
> > > (org.apache.zookeeper.server.persistence.FileTxnSnapLog)
> > > [2021-02-28 07:38:33,006] INFO Purge task completed.
> > > (org.apache.zookeeper.server.DatadirCleanupManager)
> > > [2021-02-28 08:38:33,005] INFO Purge task started.
> > > (org.apache.zookeeper.server.DatadirCleanupManager)
> > > [2021-02-28 08:38:33,005] INFO zookeeper.snapshot.trust.empty : false
> > > (org.apache.zookeeper.server.persistence.FileTxnSnapLog)
> > > [2021-02-28 08:38:33,006] INFO Purge task completed.
> > > (org.apache.zookeeper.server.DatadirCleanupManager)
> > >
> > >
> > > *#############################################################Already
> Sent
> > > Log Chunk#############################################################*
> > > [2021-02-28 09:11:38,119] WARN Exception when following the leader
> > > (org.apache.zookeeper.server.quorum.Learner)
> > > java.io.EOFException
> > >         at java.io.DataInputStream.readInt(DataInputStream.java:392)
> > >         at
> > > org.apache.jute.BinaryInputArchive.readInt(BinaryInputArchive.java:84)
> > >         at
> > >
> > >
> org.apache.zookeeper.server.quorum.QuorumPacket.deserialize(QuorumPacket.java:86)
> > >         at
> > >
> org.apache.jute.BinaryInputArchive.readRecord(BinaryInputArchive.java:118)
> > >         at
> > > org.apache.zookeeper.server.quorum.Learner.readPacket(Learner.java:158)
> > >         at
> > >
> org.apache.zookeeper.server.quorum.Follower.followLeader(Follower.java:92)
> > >         at
> > > org.apache.zookeeper.server.quorum.QuorumPeer.run(QuorumPeer.java:1253)
> > > [2021-02-28 09:11:38,119] WARN Closing connection to leader, exception
> > > during packet send
> > > (org.apache.zookeeper.server.quorum.SendAckRequestProcessor)
> > > javax.net.ssl.SSLException: Connection or outbound has been closed
> > >         at sun.security.ssl.Alert.createSSLException(Alert.java:127)
> > >         at
> > > sun.security.ssl.TransportContext.fatal(TransportContext.java:324)
> > >         at
> > > sun.security.ssl.TransportContext.fatal(TransportContext.java:267)
> > >         at
> > > sun.security.ssl.TransportContext.fatal(TransportContext.java:262)
> > >         at
> > >
> > >
> sun.security.ssl.SSLSocketImpl$AppOutputStream.write(SSLSocketImpl.java:979)
> > >         at
> > > java.io.BufferedOutputStream.flushBuffer(BufferedOutputStream.java:82)
> > >         at
> > > java.io.BufferedOutputStream.flush(BufferedOutputStream.java:140)
> > >         at
> > >
> org.apache.zookeeper.server.quorum.Learner.writePacket(Learner.java:144)
> > >         at
> > >
> > >
> org.apache.zookeeper.server.quorum.SendAckRequestProcessor.flush(SendAckRequestProcessor.java:62)
> > >         at
> > >
> > >
> org.apache.zookeeper.server.SyncRequestProcessor.flush(SyncRequestProcessor.java:186)
> > >         at
> > >
> > >
> org.apache.zookeeper.server.SyncRequestProcessor.run(SyncRequestProcessor.java:113)
> > > Caused by: java.net.SocketException: Connection or outbound has been
> closed
> > >         at
> > >
> > >
> sun.security.ssl.SSLSocketOutputRecord.deliver(SSLSocketOutputRecord.java:267)
> > >         at
> > >
> > >
> sun.security.ssl.SSLSocketImpl$AppOutputStream.write(SSLSocketImpl.java:974)
> > >         ... 6 more
> > > [2021-02-28 09:11:38,120] INFO shutdown called
> > > (org.apache.zookeeper.server.quorum.Learner)
> > > java.lang.Exception: shutdown Follower
> > >         at
> > > org.apache.zookeeper.server.quorum.Follower.shutdown(Follower.java:201)
> > >         at
> > > org.apache.zookeeper.server.quorum.QuorumPeer.run(QuorumPeer.java:1257)
> > > [2021-02-28 09:11:38,120] INFO Shutting down
> > > (org.apache.zookeeper.server.ZooKeeperServer)
> > > [2021-02-28 09:11:38,120] INFO shutting down
> > > (org.apache.zookeeper.server.ZooKeeperServer)
> > > [2021-02-28 09:11:38,120] INFO Shutting down
> > > (org.apache.zookeeper.server.quorum.FollowerRequestProcessor)
> > > [2021-02-28 09:11:38,121] INFO Shutting down
> > > (org.apache.zookeeper.server.quorum.CommitProcessor)
> > > [2021-02-28 09:11:38,121] INFO FollowerRequestProcessor exited loop!
> > > (org.apache.zookeeper.server.quorum.FollowerRequestProcessor)
> > > [2021-02-28 09:11:38,121] INFO CommitProcessor exited loop!
> > > (org.apache.zookeeper.server.quorum.CommitProcessor)
> > > [2021-02-28 09:11:38,123] INFO shutdown of request processor complete
> > > (org.apache.zookeeper.server.FinalRequestProcessor)
> > > [2021-02-28 09:11:38,132] INFO Shutting down
> > > (org.apache.zookeeper.server.SyncRequestProcessor)
> > > [2021-02-28 09:11:38,132] INFO SyncRequestProcessor exited!
> > > (org.apache.zookeeper.server.SyncRequestProcessor)
> > > [2021-02-28 09:11:38,132] WARN PeerState set to LOOKING
> > > (org.apache.zookeeper.server.quorum.QuorumPeer)
> > > [2021-02-28 09:11:38,132] INFO LOOKING
> > > (org.apache.zookeeper.server.quorum.QuorumPeer)
> > > [2021-02-28 09:11:38,133] INFO New election. My id =  111, proposed
> > > zxid=0x2800000dd6
> (org.apache.zookeeper.server.quorum.FastLeaderElection)
> > > [2021-02-28 09:11:38,135] INFO Notification: 2 (message format
> version),
> > > 111 (n.leader), 0x2800000dd6 (n.zxid), 0xf8 (n.round), LOOKING
> (n.state),
> > > 111 (n.sid), 0x28 (n.peerEPoch), LOOKING (my state)0 (n.config version)
> > > (org.apache.zookeeper.server.quorum.FastLeaderElection)
> > > [2021-02-28 09:11:38,336] INFO Notification time out: 400
> > > (org.apache.zookeeper.server.quorum.FastLeaderElection)
> > > [2021-02-28 09:11:38,337] INFO Notification: 2 (message format
> version),
> > > 111 (n.leader), 0x2800000dd6 (n.zxid), 0xf8 (n.round), LOOKING
> (n.state),
> > > 111 (n.sid), 0x28 (n.peerEPoch), LOOKING (my state)0 (n.config version)
> > > (org.apache.zookeeper.server.quorum.FastLeaderElection)
> > > [2021-02-28 09:11:38,737] INFO Notification time out: 800
> > > (org.apache.zookeeper.server.quorum.FastLeaderElection)
> > > [2021-02-28 09:11:38,738] INFO Notification: 2 (message format
> version),
> > > 111 (n.leader), 0x2800000dd6 (n.zxid), 0xf8 (n.round), LOOKING
> (n.state),
> > > 111 (n.sid), 0x28 (n.peerEPoch), LOOKING (my state)0 (n.config version)
> > > (org.apache.zookeeper.server.quorum.FastLeaderElection)
> > > [2021-02-28 09:11:39,538] INFO Notification time out: 1600
> > > (org.apache.zookeeper.server.quorum.FastLeaderElection)
> > > [2021-02-28 09:11:39,539] INFO Notification: 2 (message format
> version),
> > > 111 (n.leader), 0x2800000dd6 (n.zxid), 0xf8 (n.round), LOOKING
> (n.state),
> > > 111 (n.sid), 0x28 (n.peerEPoch), LOOKING (my state)0 (n.config version)
> > > (org.apache.zookeeper.server.quorum.FastLeaderElection)
> > > [2021-02-28 09:11:41,139] INFO Notification time out: 3200
> > > (org.apache.zookeeper.server.quorum.FastLeaderElection)
> > > [2021-02-28 09:11:41,140] INFO Notification: 2 (message format
> version),
> > > 111 (n.leader), 0x2800000dd6 (n.zxid), 0xf8 (n.round), LOOKING
> (n.state),
> > > 111 (n.sid), 0x28 (n.peerEPoch), LOOKING (my state)0 (n.config version)
> > > (org.apache.zookeeper.server.quorum.FastLeaderElection)
> > > [2021-02-28 09:11:44,340] INFO Notification time out: 6400
> > > (org.apache.zookeeper.server.quorum.FastLeaderElection)
> > > [2021-02-28 09:11:44,341] INFO Notification: 2 (message format
> version),
> > > 111 (n.leader), 0x2800000dd6 (n.zxid), 0xf8 (n.round), LOOKING
> (n.state),
> > > 111 (n.sid), 0x28 (n.peerEPoch), LOOKING (my state)0 (n.config version)
> > > (org.apache.zookeeper.server.quorum.FastLeaderElection)
> > > [2021-02-28 09:11:50,741] INFO Notification time out: 12800
> > > (org.apache.zookeeper.server.quorum.FastLeaderElection)
> > > [2021-02-28 09:11:50,741] INFO Notification: 2 (message format
> version),
> > > 111 (n.leader), 0x2800000dd6 (n.zxid), 0xf8 (n.round), LOOKING
> (n.state),
> > > 111 (n.sid), 0x28 (n.peerEPoch), LOOKING (my state)0 (n.config version)
> > > (org.apache.zookeeper.server.quorum.FastLeaderElection)
> > > [2021-02-28 09:12:03,542] INFO Notification time out: 25600
> > > (org.apache.zookeeper.server.quorum.FastLeaderElection)
> > > [2021-02-28 09:12:03,542] INFO Notification: 2 (message format
> version),
> > > 111 (n.leader), 0x2800000dd6 (n.zxid), 0xf8 (n.round), LOOKING
> (n.state),
> > > 111 (n.sid), 0x28 (n.peerEPoch), LOOKING (my state)0 (n.config version)
> > > (org.apache.zookeeper.server.quorum.FastLeaderElection)
> > > [2021-02-28 09:12:29,142] INFO Notification time out: 51200
> > > (org.apache.zookeeper.server.quorum.FastLeaderElection)
> > > [2021-02-28 09:12:29,143] INFO Notification: 2 (message format
> version),
> > > 111 (n.leader), 0x2800000dd6 (n.zxid), 0xf8 (n.round), LOOKING
> (n.state),
> > > 111 (n.sid), 0x28 (n.peerEPoch), LOOKING (my state)0 (n.config version)
> > > (org.apache.zookeeper.server.quorum.FastLeaderElection)
> > > [2021-02-28 09:13:20,344] INFO Notification time out: 60000
> > > (org.apache.zookeeper.server.quorum.FastLeaderElection)
> > > [2021-02-28 09:13:20,345] INFO Notification: 2 (message format
> version),
> > > 111 (n.leader), 0x2800000dd6 (n.zxid), 0xf8 (n.round), LOOKING
> (n.state),
> > > 111 (n.sid), 0x28 (n.peerEPoch), LOOKING (my state)0 (n.config version)
> > > (org.apache.zookeeper.server.quorum.FastLeaderElection)
> > > [2021-02-28 09:14:20,345] INFO Notification time out: 60000
> > > (org.apache.zookeeper.server.quorum.FastLeaderElection)
> > > [2021-02-28 09:14:20,346] INFO Notification: 2 (message format
> version),
> > > 111 (n.leader), 0x2800000dd6 (n.zxid), 0xf8 (n.round), LOOKING
> (n.state),
> > > 111 (n.sid), 0x28 (n.peerEPoch), LOOKING (my state)0 (n.config version)
> > > (org.apache.zookeeper.server.quorum.FastLeaderElection)
> > > [2021-02-28 09:15:20,346] INFO Notification time out: 60000
> > > (org.apache.zookeeper.server.quorum.FastLeaderElection)
> > > [2021-02-28 09:15:20,347] INFO Notification: 2 (message format
> version),
> > > 111 (n.leader), 0x2800000dd6 (n.zxid), 0xf8 (n.round), LOOKING
> (n.state),
> > > 111 (n.sid), 0x28 (n.peerEPoch), LOOKING (my state)0 (n.config version)
> > > (org.apache.zookeeper.server.quorum.FastLeaderElection)
> > > [2021-02-28 09:16:20,347] INFO Notification time out: 60000
> > > (org.apache.zookeeper.server.quorum.FastLeaderElection)
> > > [2021-02-28 09:16:20,348] INFO Notification: 2 (message format
> version),
> > > 111 (n.leader), 0x2800000dd6 (n.zxid), 0xf8 (n.round), LOOKING
> (n.state),
> > > 111 (n.sid), 0x28 (n.peerEPoch), LOOKING (my state)0 (n.config version)
> > > (org.apache.zookeeper.server.quorum.FastLeaderElection)
> > > [2021-02-28 09:17:20,348] INFO Notification time out: 60000
> > > (org.apache.zookeeper.server.quorum.FastLeaderElection)
> > > [2021-02-28 09:17:20,350] INFO Notification: 2 (message format
> version),
> > > 111 (n.leader), 0x2800000dd6 (n.zxid), 0xf8 (n.round), LOOKING
> (n.state),
> > > 111 (n.sid), 0x28 (n.peerEPoch), LOOKING (my state)0 (n.config version)
> > > (org.apache.zookeeper.server.quorum.FastLeaderElection)
> > > [2021-02-28 09:18:20,350] INFO Notification time out: 60000
> > > (org.apache.zookeeper.server.quorum.FastLeaderElection)
> > > [2021-02-28 09:18:20,351] INFO Notification: 2 (message format
> version),
> > > 111 (n.leader), 0x2800000dd6 (n.zxid), 0xf8 (n.round), LOOKING
> (n.state),
> > > 111 (n.sid), 0x28 (n.peerEPoch), LOOKING (my state)0 (n.config version)
> > > (org.apache.zookeeper.server.quorum.FastLeaderElection)
> > > [2021-02-28 09:19:20,352] INFO Notification time out: 60000
> > > (org.apache.zookeeper.server.quorum.FastLeaderElection)
> > > [2021-02-28 09:19:20,352] INFO Notification: 2 (message format
> version),
> > > 111 (n.leader), 0x2800000dd6 (n.zxid), 0xf8 (n.round), LOOKING
> (n.state),
> > > 111 (n.sid), 0x28 (n.peerEPoch), LOOKING (my state)0 (n.config version)
> > > (org.apache.zookeeper.server.quorum.FastLeaderElection)
> > > [2021-02-28 09:20:20,353] INFO Notification time out: 60000
> > > (org.apache.zookeeper.server.quorum.FastLeaderElection)
> > > [2021-02-28 09:20:20,357] INFO Notification: 2 (message format
> version),
> > > 111 (n.leader), 0x2800000dd6 (n.zxid), 0xf8 (n.round), LOOKING
> (n.state),
> > > 111 (n.sid), 0x28 (n.peerEPoch), LOOKING (my state)0 (n.config version)
> > > (org.apache.zookeeper.server.quorum.FastLeaderElection)
> > > [2021-02-28 09:21:20,357] INFO Notification time out: 60000
> > > (org.apache.zookeeper.server.quorum.FastLeaderElection)
> > > [2021-02-28 09:21:20,358] INFO Notification: 2 (message format
> version),
> > > 111 (n.leader), 0x2800000dd6 (n.zxid), 0xf8 (n.round), LOOKING
> (n.state),
> > > 111 (n.sid), 0x28 (n.peerEPoch), LOOKING (my state)0 (n.config version)
> > > (org.apache.zookeeper.server.quorum.FastLeaderElection)
> > >
> > >
> > > *#############################################################Needed
> tio
> > > manually restart to force reconnect to the ensemble
> > > cluster.#############################################################*
> > > [2021-02-28 09:21:56,110] INFO Reading configuration from:
> > > /opt/kafka/config/zookeeper.properties
> > > (org.apache.zookeeper.server.quorum.QuorumPeerConfig)
> > > [2021-02-28 09:21:56,113] INFO clientPort is not set
> > > (org.apache.zookeeper.server.quorum.QuorumPeerConfig)
> > > [2021-02-28 09:21:56,115] INFO secureClientPortAddress is 0.0.0.0:3184
> > > (org.apache.zookeeper.server.quorum.QuorumPeerConfig)
> > > [2021-02-28 09:21:56,118] INFO Setting -D
> > > jdk.tls.rejectClientInitiatedRenegotiation=true to disable
> client-initiated
> > > TLS renegotiation (org.apache.zookeeper.common.X509Util)
> > > [2021-02-28 09:21:56,126] INFO autopurge.snapRetainCount set to 10
> > > (org.apache.zookeeper.server.DatadirCleanupManager)
> > > [2021-02-28 09:21:56,126] INFO autopurge.purgeInterval set to 1
> > > (org.apache.zookeeper.server.DatadirCleanupManager)
> > > [2021-02-28 09:21:56,129] INFO Purge task started.
> > > (org.apache.zookeeper.server.DatadirCleanupManager)
> > > [2021-02-28 09:21:56,129] INFO Log4j 1.2 jmx support found and enabled.
> > > (org.apache.zookeeper.jmx.ManagedUtil)
> > > [2021-02-28 09:21:56,135] INFO Starting quorum peer
> > > (org.apache.zookeeper.server.quorum.QuorumPeerMain)
> > > [2021-02-28 09:21:56,137] INFO zookeeper.snapshot.trust.empty : false
> > > (org.apache.zookeeper.server.persistence.FileTxnSnapLog)
> > > [2021-02-28 09:21:56,146] INFO Purge task completed.
> > > (org.apache.zookeeper.server.DatadirCleanupManager)
> > > [2021-02-28 09:21:56,187] INFO zookeeper.client.portUnification=false
> > > (org.apache.zookeeper.server.NettyServerCnxnFactory)
> > > [2021-02-28 09:21:56,220] INFO Using
> > > org.apache.zookeeper.server.NettyServerCnxnFactory as server connection
> > > factory (org.apache.zookeeper.server.ServerCnxnFactory)
> > > [2021-02-28 09:21:56,228] INFO Server successfully logged in.
> > > (org.apache.zookeeper.Login)
> > > [2021-02-28 09:21:56,242] INFO zookeeper.snapshot.trust.empty : false
> > > (org.apache.zookeeper.server.persistence.FileTxnSnapLog)
> > > [2021-02-28 09:21:56,242] INFO Local sessions disabled
> > > (org.apache.zookeeper.server.quorum.QuorumPeer)
> > > [2021-02-28 09:21:56,242] INFO Local session upgrading disabled
> > > (org.apache.zookeeper.server.quorum.QuorumPeer)
> > > [2021-02-28 09:21:56,243] INFO tickTime set to 2000
> > > (org.apache.zookeeper.server.quorum.QuorumPeer)
> > > [2021-02-28 09:21:56,243] INFO minSessionTimeout set to 4000
> > > (org.apache.zookeeper.server.quorum.QuorumPeer)
> > > [2021-02-28 09:21:56,243] INFO maxSessionTimeout set to 40000
> > > (org.apache.zookeeper.server.quorum.QuorumPeer)
> > > [2021-02-28 09:21:56,243] INFO initLimit set to 5
> > > (org.apache.zookeeper.server.quorum.QuorumPeer)
> > > [2021-02-28 09:21:56,253] INFO zookeeper.snapshotSizeFactor = 0.33
> > > (org.apache.zookeeper.server.ZKDatabase)
> > > [2021-02-28 09:21:56,255] INFO Using TLS encrypted quorum communication
> > > (org.apache.zookeeper.server.quorum.QuorumPeer)
> > > [2021-02-28 09:21:56,255] INFO Port unification disabled
> > > (org.apache.zookeeper.server.quorum.QuorumPeer)
> > > [2021-02-28 09:21:56,255] INFO quorum.auth.enableSasl set to true
> > > (org.apache.zookeeper.server.quorum.QuorumPeer)
> > > [2021-02-28 09:21:56,255] INFO quorum.auth.serverRequireSasl set to
> true
> > > (org.apache.zookeeper.server.quorum.QuorumPeer)
> > > [2021-02-28 09:21:56,255] INFO quorum.auth.learnerRequireSasl set to
> true
> > > (org.apache.zookeeper.server.quorum.QuorumPeer)
> > > [2021-02-28 09:21:56,255] INFO quorum.auth.kerberos.servicePrincipal
> set to
> > > zkquorum/localhost (org.apache.zookeeper.server.quorum.QuorumPeer)
> > > [2021-02-28 09:21:56,255] INFO quorum.auth.server.saslLoginContext set
> to
> > > QuorumServer (org.apache.zookeeper.server.quorum.QuorumPeer)
> > > [2021-02-28 09:21:56,255] INFO quorum.auth.learner.saslLoginContext
> set to
> > > QuorumLearner (org.apache.zookeeper.server.quorum.QuorumPeer)
> > > [2021-02-28 09:21:56,255] INFO quorum.cnxn.threads.size set to 20
> > > (org.apache.zookeeper.server.quorum.QuorumPeer)
> > > [2021-02-28 09:21:56,257] INFO QuorumServer successfully logged in.
> > > (org.apache.zookeeper.Login)
> > > [2021-02-28 09:21:56,258] INFO QuorumLearner successfully logged in.
> > > (org.apache.zookeeper.Login)
> > > [2021-02-28 09:21:56,260] INFO Reading snapshot
> > > /zookeeper-datastore/version-2/snapshot.2400000034
> > > (org.apache.zookeeper.server.persistence.FileSnap)
> > > [2021-02-28 09:21:56,511] INFO binding to port 0.0.0.0/0.0.0.0:3184
> > > (org.apache.zookeeper.server.NettyServerCnxnFactory)
> > > [2021-02-28 09:21:56,565] INFO bound to port 3184
> > > (org.apache.zookeeper.server.NettyServerCnxnFactory)
> > > [2021-02-28 09:21:56,571] INFO Election port bind maximum retries is 3
> > > (org.apache.zookeeper.server.quorum.QuorumCnxManager)
> > > [2021-02-28 09:21:56,574] INFO Creating TLS-only quorum server socket
> > > (org.apache.zookeeper.server.quorum.QuorumCnxManager)
> > > [2021-02-28 09:21:56,575] INFO 111 is accepting connections now, my
> > > election bind port: zk-xpto.production.com/10.1.1.99:3888
> > > (org.apache.zookeeper.server.quorum.QuorumCnxManager)
> > > [2021-02-28 09:21:56,587] INFO LOOKING
> > > (org.apache.zookeeper.server.quorum.QuorumPeer)
> > > [2021-02-28 09:21:56,592] INFO New election. My id =  111, proposed
> > > zxid=0x2800000dd6
> (org.apache.zookeeper.server.quorum.FastLeaderElection)
> > >
> > >
> > >
> > > *#############################################################Messages
> > > after
> restart#############################################################*
> > > [2021-02-28 09:21:57,508] INFO Server
> > >
> > >
> environment:java.library.path=/usr/java/packages/lib/amd64:/usr/lib64:/lib64:/lib:/usr/lib
> > > (org.apache.zookeeper.server.ZooKeeperServer)
> > > [2021-02-28 09:21:57,508] INFO Server environment:java.io.tmpdir=/tmp
> > > (org.apache.zookeeper.server.ZooKeeperServer)
> > > [2021-02-28 09:21:57,508] INFO Server environment:java.compiler=<NA>
> > > (org.apache.zookeeper.server.ZooKeeperServer)
> > > [2021-02-28 09:21:57,508] INFO Server environment:os.name=Linux
> > > (org.apache.zookeeper.server.ZooKeeperServer)
> > > [2021-02-28 09:21:57,508] INFO Server environment:os.arch=amd64
> > > (org.apache.zookeeper.server.ZooKeeperServer)
> > > [2021-02-28 09:21:57,508] INFO Server
> > > environment:os.version=zk_user_xpto_OS_Version.x86_64
> > > (org.apache.zookeeper.server.ZooKeeperServer)
> > > [2021-02-28 09:21:57,508] INFO Server environment:user.name
> =zk_user_xpto
> > > (org.apache.zookeeper.server.ZooKeeperServer)
> > > [2021-02-28 09:21:57,516] INFO Server
> > > environment:user.home=/home/zk_user_xpto
> > > (org.apache.zookeeper.server.ZooKeeperServer)
> > > [2021-02-28 09:21:57,516] INFO Server environment:user.dir=/
> > > (org.apache.zookeeper.server.ZooKeeperServer)
> > > [2021-02-28 09:21:57,516] INFO Server environment:os.memory.free=492MB
> > > (org.apache.zookeeper.server.ZooKeeperServer)
> > > [2021-02-28 09:21:57,516] INFO Server environment:os.memory.max=1024MB
> > > (org.apache.zookeeper.server.ZooKeeperServer)
> > > [2021-02-28 09:21:57,516] INFO Server environment:os.memory.total=512MB
> > > (org.apache.zookeeper.server.ZooKeeperServer)
> > > [2021-02-28 09:21:57,508] INFO Notification: 2 (message format
> version),
> > > 103 (n.leader), 0x2800000dd9 (n.zxid), 0xf8 (n.round), FOLLOWING
> (n.state),
> > > 101 (n.sid), 0x29 (n.peerEPoch), FOLLOWING (my state)0 (n.config
> version)
> > > (org.apache.zookeeper.server.quorum.FastLeaderElection)
> > > [2021-02-28 09:21:57,517] INFO minSessionTimeout set to 4000
> > > (org.apache.zookeeper.server.ZooKeeperServer)
> > > [2021-02-28 09:21:57,517] INFO maxSessionTimeout set to 40000
> > > (org.apache.zookeeper.server.ZooKeeperServer)
> > > [2021-02-28 09:21:57,517] INFO Created server with tickTime 2000
> > > minSessionTimeout 4000 maxSessionTimeout 40000 datadir
> > > /opt/zookeeper_dir_datalog/version-2 snapdir
> > > /opt/zookeeper_dir_datastore/version-2
> > > (org.apache.zookeeper.server.ZooKeeperServer)
> > > [2021-02-28 09:21:57,518] INFO FOLLOWING - LEADER ELECTION TOOK - 19 MS
> > > (org.apache.zookeeper.server.quorum.Learner)
> > > [2021-02-28 09:21:57,653] INFO QuorumLearner will use DIGEST-MD5 as
> SASL
> > > mechanism.
> (org.apache.zookeeper.server.quorum.auth.SaslQuorumAuthLearner)
> > > [2021-02-28 09:21:57,657] INFO Successfully completed the
> authentication
> > > using SASL. server addr: zk-xpto-ad.production.com/10.1.1.97:2888,
> status:
> > > SUCCESS (org.apache.zookeeper.server.quorum.auth.SaslQuorumAuthLearner)
> > > [2021-02-28 09:21:57,666] INFO Getting a diff from the leader
> 0x2900000089
> > > (org.apache.zookeeper.server.quorum.Learner)
> > > [2021-02-28 09:21:57,670] WARN Got zxid 0x2800000dd7 expected 0x1
> > > (org.apache.zookeeper.server.quorum.Learner)
> > > [2021-02-28 09:21:57,670] WARN Got zxid 0x2900000001 expected
> 0x2800000dda
> > > (org.apache.zookeeper.server.quorum.Learner)
> > > [2021-02-28 09:21:57,672] INFO Learner received NEWLEADER message
> > > (org.apache.zookeeper.server.quorum.Learner)
> > > [2021-02-28 09:21:57,688] INFO Learner received UPTODATE message
> > > (org.apache.zookeeper.server.quorum.Learner)
> > > [2021-02-28 09:21:57,692] INFO Configuring CommitProcessor with 4
> worker
> > > threads. (org.apache.zookeeper.server.quorum.CommitProcessor)
> > > [2021-02-28 09:21:57,696] INFO Creating new log file: log.2800000dd7
> > > (org.apache.zookeeper.server.persistence.FileTxnLog)
> > > [2021-02-28 09:51:15,121] WARN Got zxid 0x290000008a expected 0x1
> > > (org.apache.zookeeper.server.quorum.Learner)
> > > [2021-02-28 10:21:56,127] INFO Purge task started.
> > > (org.apache.zookeeper.server.DatadirCleanupManager)
> > > [2021-02-28 10:21:56,127] INFO zookeeper.snapshot.trust.empty : false
> > > (org.apache.zookeeper.server.persistence.FileTxnSnapLog)
> > > [2021-02-28 10:21:56,127] INFO Purge task completed.
> > > (org.apache.zookeeper.server.DatadirCleanupManager)
> > >
> > >
> > >
> > > *#############################################################At this
> > > point, we got an exception but it was due to another VMWare Host
> getting
> > > updatedThis time the ensemble was able to restablished without needing
> to
> > > restart this node
> > > manually#############################################################*
> > > [2021-02-28 10:38:16,756] WARN Exception when following the leader
> > > (org.apache.zookeeper.server.quorum.Learner)
> > > java.net.SocketTimeoutException: Read timed out
> > >         at java.net.SocketInputStream.socketRead0(Native Method)
> > >         at
> > > java.net.SocketInputStream.socketRead(SocketInputStream.java:116)
> > >         at java.net.SocketInputStream.read(SocketInputStream.java:171)
> > >         at java.net.SocketInputStream.read(SocketInputStream.java:141)
> > >         at
> > >
> sun.security.ssl.SSLSocketInputRecord.read(SSLSocketInputRecord.java:457)
> > >         at
> > >
> > >
> sun.security.ssl.SSLSocketInputRecord.bytesInCompletePacket(SSLSocketInputRecord.java:68)
> > >         at
> > >
> > >
> sun.security.ssl.SSLSocketImpl.readApplicationRecord(SSLSocketImpl.java:1095)
> > >         at
> sun.security.ssl.SSLSocketImpl.access$200(SSLSocketImpl.java:72)
> > >         at
> > >
> sun.security.ssl.SSLSocketImpl$AppInputStream.read(SSLSocketImpl.java:815)
> > >         at
> java.io.BufferedInputStream.fill(BufferedInputStream.java:246)
> > >         at
> java.io.BufferedInputStream.read(BufferedInputStream.java:265)
> > >         at java.io.DataInputStream.readInt(DataInputStream.java:387)
> > >         at
> > > org.apache.jute.BinaryInputArchive.readInt(BinaryInputArchive.java:84)
> > >         at
> > >
> > >
> org.apache.zookeeper.server.quorum.QuorumPacket.deserialize(QuorumPacket.java:86)
> > >         at
> > >
> org.apache.jute.BinaryInputArchive.readRecord(BinaryInputArchive.java:118)
> > >         at
> > > org.apache.zookeeper.server.quorum.Learner.readPacket(Learner.java:158)
> > >         at
> > >
> org.apache.zookeeper.server.quorum.Follower.followLeader(Follower.java:92)
> > >         at
> > > org.apache.zookeeper.server.quorum.QuorumPeer.run(QuorumPeer.java:1253)
> > > [2021-02-28 10:38:16,760] INFO shutdown called
> > > (org.apache.zookeeper.server.quorum.Learner)
> > > java.lang.Exception: shutdown Follower
> > >         at
> > > org.apache.zookeeper.server.quorum.Follower.shutdown(Follower.java:201)
> > >         at
> > > org.apache.zookeeper.server.quorum.QuorumPeer.run(QuorumPeer.java:1257)
> > > [2021-02-28 10:38:16,760] INFO Shutting down
> > > (org.apache.zookeeper.server.ZooKeeperServer)
> > > [2021-02-28 10:38:16,760] INFO shutting down
> > > (org.apache.zookeeper.server.ZooKeeperServer)
> > > [2021-02-28 10:38:16,760] INFO Shutting down
> > > (org.apache.zookeeper.server.quorum.FollowerRequestProcessor)
> > > [2021-02-28 10:38:16,760] INFO Shutting down
> > > (org.apache.zookeeper.server.quorum.CommitProcessor)
> > > [2021-02-28 10:38:16,761] INFO FollowerRequestProcessor exited loop!
> > > (org.apache.zookeeper.server.quorum.FollowerRequestProcessor)
> > > [2021-02-28 10:38:16,761] INFO CommitProcessor exited loop!
> > > (org.apache.zookeeper.server.quorum.CommitProcessor)
> > > [2021-02-28 10:38:16,761] INFO shutdown of request processor complete
> > > (org.apache.zookeeper.server.FinalRequestProcessor)
> > > [2021-02-28 10:38:16,764] INFO Shutting down
> > > (org.apache.zookeeper.server.SyncRequestProcessor)
> > > [2021-02-28 10:38:16,764] INFO SyncRequestProcessor exited!
> > > (org.apache.zookeeper.server.SyncRequestProcessor)
> > > [2021-02-28 10:38:16,764] WARN PeerState set to LOOKING
> > > (org.apache.zookeeper.server.quorum.QuorumPeer)
> > > [2021-02-28 10:38:16,764] INFO LOOKING
> > > (org.apache.zookeeper.server.quorum.QuorumPeer)
> > > [2021-02-28 10:38:16,765] INFO New election. My id =  111, proposed
> > > zxid=0x2900000383
> (org.apache.zookeeper.server.quorum.FastLeaderElection)
> > > [2021-02-28 10:38:16,766] INFO Notification: 2 (message format
> version),
> > > 111 (n.leader), 0x2900000383 (n.zxid), 0xf9 (n.round), LOOKING
> (n.state),
> > > 111 (n.sid), 0x29 (n.peerEPoch), LOOKING (my state)0 (n.config version)
> > > (org.apache.zookeeper.server.quorum.FastLeaderElection)
> > > [2021-02-28 10:38:16,766] INFO Notification: 2 (message format
> version),
> > > 104 (n.leader), 0x2900000383 (n.zxid), 0xf9 (n.round), LOOKING
> (n.state),
> > > 104 (n.sid), 0x29 (n.peerEPoch), LOOKING (my state)0 (n.config version)
> > > (org.apache.zookeeper.server.quorum.FastLeaderElection)
> > > [2021-02-28 10:38:16,769] INFO Notification: 2 (message format
> version),
> > > 111 (n.leader), 0x2900000383 (n.zxid), 0xf9 (n.round), LOOKING
> (n.state),
> > > 104 (n.sid), 0x29 (n.peerEPoch), LOOKING (my state)0 (n.config version)
> > > (org.apache.zookeeper.server.quorum.FastLeaderElection)
> > > [2021-02-28 10:38:16,769] INFO Notification: 2 (message format
> version),
> > > 103 (n.leader), 0x2800000dd9 (n.zxid), 0xf8 (n.round), LEADING
> (n.state),
> > > 103 (n.sid), 0x29 (n.peerEPoch), LOOKING (my state)0 (n.config version)
> > > (org.apache.zookeeper.server.quorum.FastLeaderElection)
> > > [2021-02-28 10:38:16,769] INFO Notification: 2 (message format
> version),
> > > 103 (n.leader), 0x2800000dd9 (n.zxid), 0xf8 (n.round), FOLLOWING
> (n.state),
> > > 102 (n.sid), 0x29 (n.peerEPoch), LOOKING (my state)0 (n.config version)
> > > (org.apache.zookeeper.server.quorum.FastLeaderElection)
> > > [2021-02-28 10:38:16,801] INFO Notification: 2 (message format
> version),
> > > 102 (n.leader), 0x2900000383 (n.zxid), 0xf9 (n.round), LOOKING
> (n.state),
> > > 102 (n.sid), 0x29 (n.peerEPoch), LOOKING (my state)0 (n.config version)
> > > (org.apache.zookeeper.server.quorum.FastLeaderElection)
> > > [2021-02-28 10:38:16,982] INFO Notification: 2 (message format
> version),
> > > 103 (n.leader), 0x2800000dd9 (n.zxid), 0xf8 (n.round), FOLLOWING
> (n.state),
> > > 101 (n.sid), 0x29 (n.peerEPoch), LOOKING (my state)0 (n.config version)
> > > (org.apache.zookeeper.server.quorum.FastLeaderElection)
> > > [2021-02-28 10:38:16,982] INFO FOLLOWING
> > > (org.apache.zookeeper.server.quorum.QuorumPeer)
> > > [2021-02-28 10:38:16,983] INFO minSessionTimeout set to 4000
> > > (org.apache.zookeeper.server.ZooKeeperServer)
> > > [2021-02-28 10:38:16,983] INFO maxSessionTimeout set to 40000
> > > (org.apache.zookeeper.server.ZooKeeperServer)
> > > [2021-02-28 10:38:16,983] INFO Created server with tickTime 2000
> > > minSessionTimeout 4000 maxSessionTimeout 40000 datadir
> > > /opt/zookeeper_dir_datalog/version-2 snapdir
> > > /opt/zookeeper_dir_datastore/version-2
> > > (org.apache.zookeeper.server.ZooKeeperServer)
> > > [2021-02-28 10:38:16,983] INFO FOLLOWING - LEADER ELECTION TOOK - 0 MS
> > > (org.apache.zookeeper.server.quorum.Learner)
> > > [2021-02-28 10:38:16,992] INFO QuorumLearner will use DIGEST-MD5 as
> SASL
> > > mechanism.
> (org.apache.zookeeper.server.quorum.auth.SaslQuorumAuthLearner)
> > > [2021-02-28 10:38:16,996] INFO Successfully completed the
> authentication
> > > using SASL. server addr: zk-xpto-ad.production.com/10.1.1.97:2888,
> status:
> > > SUCCESS (org.apache.zookeeper.server.quorum.auth.SaslQuorumAuthLearner)
> > > [2021-02-28 10:38:17,001] INFO Getting a diff from the leader
> 0x290000039a
> > > (org.apache.zookeeper.server.quorum.Learner)
> > > [2021-02-28 10:38:17,001] WARN Got zxid 0x2900000384 expected 0x1
> > > (org.apache.zookeeper.server.quorum.Learner)
> > > [2021-02-28 10:38:17,001] INFO Learner received NEWLEADER message
> > > (org.apache.zookeeper.server.quorum.Learner)
> > > [2021-02-28 10:38:17,004] INFO Learner received UPTODATE message
> > > (org.apache.zookeeper.server.quorum.Learner)
> > > [2021-02-28 10:38:17,004] INFO Configuring CommitProcessor with 4
> worker
> > > threads. (org.apache.zookeeper.server.quorum.CommitProcessor)
> > > [2021-02-28 10:38:17,140] WARN Got zxid 0x290000039b expected 0x1
> > > (org.apache.zookeeper.server.quorum.Learner)
> > > [2021-02-28 11:21:56,127] INFO Purge task started.
> > > (org.apache.zookeeper.server.DatadirCleanupManager)
> > > [2021-02-28 11:21:56,127] INFO zookeeper.snapshot.trust.empty : false
> > > (org.apache.zookeeper.server.persistence.FileTxnSnapLog)
> > > [2021-02-28 11:21:56,128] INFO Purge task completed.
> > > (org.apache.zookeeper.server.DatadirCleanupManager)
> > > [2021-02-28 12:21:56,127] INFO Purge task started.
> > > (org.apache.zookeeper.server.DatadirCleanupManager)
> > > [2021-02-28 12:21:56,127] INFO zookeeper.snapshot.trust.empty : false
> > > (org.apache.zookeeper.server.persistence.FileTxnSnapLog)
> > > [2021-02-28 12:21:56,128] INFO Purge task completed.
> > > (org.apache.zookeeper.server.DatadirCleanupManager)
> > > [2021-02-28 13:21:56,126] INFO Purge task started.
> > > (org.apache.zookeeper.server.DatadirCleanupManager)
> > > [2021-02-28 13:21:56,126] INFO zookeeper.snapshot.trust.empty : false
> > > (org.apache.zookeeper.server.persistence.FileTxnSnapLog)
> > > [2021-02-28 13:21:56,127] INFO Purge task completed.
> > > (org.apache.zookeeper.server.DatadirCleanupManager)
> > > [2021-02-28 14:21:56,126] INFO Purge task started.
> > > (org.apache.zookeeper.server.DatadirCleanupManager)
> > > [2021-02-28 14:21:56,126] INFO zookeeper.snapshot.trust.empty : false
> > > (org.apache.zookeeper.server.persistence.FileTxnSnapLog)
> > >
> > >
> > > Best Regards!
> > > Jhanssen Fávaro de Oliveira
> > >
> > >
> > > On Tue, Mar 2, 2021 at 2:22 AM Szalay-Bekő Máté <
> > > [email protected]>
> > > wrote:
> > >
> > > > >  it was supposed to get back "automatically" right ?
> > > > absolutely
> > > >
> > > > I haven't seen this exact problem before. Which ZooKeeper version
> are you
> > > > using?
> > > >
> > > > Can you maybe check the logs for any earlier exceptions / errors
> before
> > > > 2021-02-28 09:11:38,119 and after the previous successful leader
> > > election?
> > > > One possibility is that one of the threads responsible for the leader
> > > > election communication (e.g. sending out notifications or receiving
> the
> > > > answers) were killed and never restarted in this ZooKeeper Server. If
> > > this
> > > > would be the case, we should see a reason / stack trace earlier
> > > explaining
> > > > the unhandled exception, and we could fix this in the code.
> > > >
> > > > I saw somewhat similar cases, when the current leader had the same
> issue
> > > > with threads that are receiving the leader election notifications.
> But in
> > > > that case no one was able to rejoin the quorum and the leader needed
> to
> > > be
> > > > restarted. Your case is different, as restarting a single follower
> solved
> > > > the issue.
> > > >
> > > > Regards,
> > > > Mate
> > > >
> > > > On Mon, Mar 1, 2021 at 8:26 PM Jhanssen Fávaro <
> [email protected]
> > > >
> > > > wrote:
> > > >
> > > > > Hi all, yesterday during a short VMWare Patching apply, there a
> was a
> > > > very
> > > > > short network outage, something about 3/5 seconds, but for one of
> our
> > > > > ZooKeeper node it didn't come back automatically.
> > > > > Our ensemble cluster has 5 members and only one got this kind of
> > > > behavior.
> > > > > I needed to manually restart it to get it back.  In this case this
> > > > > member/zk was not receving connections from kafka, it's only a
> > > repository
> > > > > backup, but anyway it was supposed to get back "automatically"
> right ?
> > > > > It was trying to call the leader, but only this got this kind of
> > > > behavior,
> > > > > all the others nodes got the ellection process and reestablished
> the
> > > > > ensemble.
> > > > > Bellow there is a log's chunk:
> > > > >
> > > > >
> > > > >
> > > > >
> > > > >
> > > > > [2021-02-28 09:11:38,119] WARN Exception when following the leader
> > > > > (org.apache.zookeeper.server.quorum.Learner)
> > > > > java.io.EOFException
> > > > >         at
> java.io.DataInputStream.readInt(DataInputStream.java:392)
> > > > >         at
> > > > >
> org.apache.jute.BinaryInputArchive.readInt(BinaryInputArchive.java:84)
> > > > >         at
> > > > >
> > > >
> > >
> org.apache.zookeeper.server.quorum.QuorumPacket.deserialize(QuorumPacket.java:86)
> > > > >         at
> > > > >
> > > >
> > >
> org.apache.jute.BinaryInputArchive.readRecord(BinaryInputArchive.java:118)
> > > > >         at
> > > > >
> org.apache.zookeeper.server.quorum.Learner.readPacket(Learner.java:158)
> > > > >         at
> > > > >
> > > >
> > >
> org.apache.zookeeper.server.quorum.Follower.followLeader(Follower.java:92)
> > > > >         at
> > > > >
> org.apache.zookeeper.server.quorum.QuorumPeer.run(QuorumPeer.java:1253)
> > > > > [2021-02-28 09:11:38,119] WARN Closing connection to leader,
> exception
> > > > > during packet send
> > > > > (org.apache.zookeeper.server.quorum.SendAckRequestProcessor)
> > > > > javax.net.ssl.SSLException: Connection or outbound has been closed
> > > > >         at
> sun.security.ssl.Alert.createSSLException(Alert.java:127)
> > > > >         at
> > > > > sun.security.ssl.TransportContext.fatal(TransportContext.java:324)
> > > > >         at
> > > > > sun.security.ssl.TransportContext.fatal(TransportContext.java:267)
> > > > >         at
> > > > > sun.security.ssl.TransportContext.fatal(TransportContext.java:262)
> > > > >         at
> > > > >
> > > >
> > >
> sun.security.ssl.SSLSocketImpl$AppOutputStream.write(SSLSocketImpl.java:979)
> > > > >         at
> > > > >
> java.io.BufferedOutputStream.flushBuffer(BufferedOutputStream.java:82)
> > > > >         at
> > > > > java.io.BufferedOutputStream.flush(BufferedOutputStream.java:140)
> > > > >         at
> > > > >
> > >
> org.apache.zookeeper.server.quorum.Learner.writePacket(Learner.java:144)
> > > > >         at
> > > > >
> > > >
> > >
> org.apache.zookeeper.server.quorum.SendAckRequestProcessor.flush(SendAckRequestProcessor.java:62)
> > > > >         at
> > > > >
> > > >
> > >
> org.apache.zookeeper.server.SyncRequestProcessor.flush(SyncRequestProcessor.java:186)
> > > > >         at
> > > > >
> > > >
> > >
> org.apache.zookeeper.server.SyncRequestProcessor.run(SyncRequestProcessor.java:113)
> > > > > Caused by: java.net.SocketException: Connection or outbound has
> been
> > > > closed
> > > > >         at
> > > > >
> > > >
> > >
> sun.security.ssl.SSLSocketOutputRecord.deliver(SSLSocketOutputRecord.java:267)
> > > > >         at
> > > > >
> > > >
> > >
> sun.security.ssl.SSLSocketImpl$AppOutputStream.write(SSLSocketImpl.java:974)
> > > > >         ... 6 more
> > > > > [2021-02-28 09:11:38,120] INFO shutdown called
> > > > > (org.apache.zookeeper.server.quorum.Learner)
> > > > > java.lang.Exception: shutdown Follower
> > > > >         at
> > > > >
> org.apache.zookeeper.server.quorum.Follower.shutdown(Follower.java:201)
> > > > >         at
> > > > >
> org.apache.zookeeper.server.quorum.QuorumPeer.run(QuorumPeer.java:1257)
> > > > > [2021-02-28 09:11:38,120] INFO Shutting down
> > > > > (org.apache.zookeeper.server.ZooKeeperServer)
> > > > > [2021-02-28 09:11:38,120] INFO shutting down
> > > > > (org.apache.zookeeper.server.ZooKeeperServer)
> > > > > [2021-02-28 09:11:38,120] INFO Shutting down
> > > > > (org.apache.zookeeper.server.quorum.FollowerRequestProcessor)
> > > > > [2021-02-28 09:11:38,121] INFO Shutting down
> > > > > (org.apache.zookeeper.server.quorum.CommitProcessor)
> > > > > [2021-02-28 09:11:38,121] INFO FollowerRequestProcessor exited
> loop!
> > > > > (org.apache.zookeeper.server.quorum.FollowerRequestProcessor)
> > > > > [2021-02-28 09:11:38,121] INFO CommitProcessor exited loop!
> > > > > (org.apache.zookeeper.server.quorum.CommitProcessor)
> > > > > [2021-02-28 09:11:38,123] INFO shutdown of request processor
> complete
> > > > > (org.apache.zookeeper.server.FinalRequestProcessor)
> > > > > [2021-02-28 09:11:38,132] INFO Shutting down
> > > > > (org.apache.zookeeper.server.SyncRequestProcessor)
> > > > > [2021-02-28 09:11:38,132] INFO SyncRequestProcessor exited!
> > > > > (org.apache.zookeeper.server.SyncRequestProcessor)
> > > > > [2021-02-28 09:11:38,132] WARN PeerState set to LOOKING
> > > > > (org.apache.zookeeper.server.quorum.QuorumPeer)
> > > > > [2021-02-28 09:11:38,132] INFO LOOKING
> > > > > (org.apache.zookeeper.server.quorum.QuorumPeer)
> > > > > [2021-02-28 09:11:38,133] INFO New election. My id =  111, proposed
> > > > > zxid=0x2800000dd6
> > > (org.apache.zookeeper.server.quorum.FastLeaderElection)
> > > > > [2021-02-28 09:11:38,135] INFO Notification: 2 (message format
> > > version),
> > > > > 111 (n.leader), 0x2800000dd6 (n.zxid), 0xf8 (n.round), LOOKING
> > > (n.state),
> > > > > 111 (n.sid), 0x28 (n.peerEPoch), LOOKING (my state)0 (n.config
> version)
> > > > > (org.apache.zookeeper.server.quorum.FastLeaderElection)
> > > > > [2021-02-28 09:11:38,336] INFO Notification time out: 400
> > > > > (org.apache.zookeeper.server.quorum.FastLeaderElection)
> > > > > [2021-02-28 09:11:38,337] INFO Notification: 2 (message format
> > > version),
> > > > > 111 (n.leader), 0x2800000dd6 (n.zxid), 0xf8 (n.round), LOOKING
> > > (n.state),
> > > > > 111 (n.sid), 0x28 (n.peerEPoch), LOOKING (my state)0 (n.config
> version)
> > > > > (org.apache.zookeeper.server.quorum.FastLeaderElection)
> > > > > [2021-02-28 09:11:38,737] INFO Notification time out: 800
> > > > > (org.apache.zookeeper.server.quorum.FastLeaderElection)
> > > > > [2021-02-28 09:11:38,738] INFO Notification: 2 (message format
> > > version),
> > > > > 111 (n.leader), 0x2800000dd6 (n.zxid), 0xf8 (n.round), LOOKING
> > > (n.state),
> > > > > 111 (n.sid), 0x28 (n.peerEPoch), LOOKING (my state)0 (n.config
> version)
> > > > > (org.apache.zookeeper.server.quorum.FastLeaderElection)
> > > > > [2021-02-28 09:11:39,538] INFO Notification time out: 1600
> > > > > (org.apache.zookeeper.server.quorum.FastLeaderElection)
> > > > > [2021-02-28 09:11:39,539] INFO Notification: 2 (message format
> > > version),
> > > > > 111 (n.leader), 0x2800000dd6 (n.zxid), 0xf8 (n.round), LOOKING
> > > (n.state),
> > > > > 111 (n.sid), 0x28 (n.peerEPoch), LOOKING (my state)0 (n.config
> version)
> > > > > (org.apache.zookeeper.server.quorum.FastLeaderElection)
> > > > > [2021-02-28 09:11:41,139] INFO Notification time out: 3200
> > > > > (org.apache.zookeeper.server.quorum.FastLeaderElection)
> > > > > [2021-02-28 09:11:41,140] INFO Notification: 2 (message format
> > > version),
> > > > > 111 (n.leader), 0x2800000dd6 (n.zxid), 0xf8 (n.round), LOOKING
> > > (n.state),
> > > > > 111 (n.sid), 0x28 (n.peerEPoch), LOOKING (my state)0 (n.config
> version)
> > > > > (org.apache.zookeeper.server.quorum.FastLeaderElection)
> > > > > [2021-02-28 09:11:44,340] INFO Notification time out: 6400
> > > > > (org.apache.zookeeper.server.quorum.FastLeaderElection)
> > > > > [2021-02-28 09:11:44,341] INFO Notification: 2 (message format
> > > version),
> > > > > 111 (n.leader), 0x2800000dd6 (n.zxid), 0xf8 (n.round), LOOKING
> > > (n.state),
> > > > > 111 (n.sid), 0x28 (n.peerEPoch), LOOKING (my state)0 (n.config
> version)
> > > > > (org.apache.zookeeper.server.quorum.FastLeaderElection)
> > > > > [2021-02-28 09:11:50,741] INFO Notification time out: 12800
> > > > > (org.apache.zookeeper.server.quorum.FastLeaderElection)
> > > > > [2021-02-28 09:11:50,741] INFO Notification: 2 (message format
> > > version),
> > > > > 111 (n.leader), 0x2800000dd6 (n.zxid), 0xf8 (n.round), LOOKING
> > > (n.state),
> > > > > 111 (n.sid), 0x28 (n.peerEPoch), LOOKING (my state)0 (n.config
> version)
> > > > > (org.apache.zookeeper.server.quorum.FastLeaderElection)
> > > > > [2021-02-28 09:12:03,542] INFO Notification time out: 25600
> > > > > (org.apache.zookeeper.server.quorum.FastLeaderElection)
> > > > > [2021-02-28 09:12:03,542] INFO Notification: 2 (message format
> > > version),
> > > > > 111 (n.leader), 0x2800000dd6 (n.zxid), 0xf8 (n.round), LOOKING
> > > (n.state),
> > > > > 111 (n.sid), 0x28 (n.peerEPoch), LOOKING (my state)0 (n.config
> version)
> > > > > (org.apache.zookeeper.server.quorum.FastLeaderElection)
> > > > > [2021-02-28 09:12:29,142] INFO Notification time out: 51200
> > > > > (org.apache.zookeeper.server.quorum.FastLeaderElection)
> > > > > [2021-02-28 09:12:29,143] INFO Notification: 2 (message format
> > > version),
> > > > > 111 (n.leader), 0x2800000dd6 (n.zxid), 0xf8 (n.round), LOOKING
> > > (n.state),
> > > > > 111 (n.sid), 0x28 (n.peerEPoch), LOOKING (my state)0 (n.config
> version)
> > > > > (org.apache.zookeeper.server.quorum.FastLeaderElection)
> > > > > [2021-02-28 09:13:20,344] INFO Notification time out: 60000
> > > > > (org.apache.zookeeper.server.quorum.FastLeaderElection)
> > > > > [2021-02-28 09:13:20,345] INFO Notification: 2 (message format
> > > version),
> > > > > 111 (n.leader), 0x2800000dd6 (n.zxid), 0xf8 (n.round), LOOKING
> > > (n.state),
> > > > > 111 (n.sid), 0x28 (n.peerEPoch), LOOKING (my state)0 (n.config
> version)
> > > > > (org.apache.zookeeper.server.quorum.FastLeaderElection)
> > > > > [2021-02-28 09:14:20,345] INFO Notification time out: 60000
> > > > > (org.apache.zookeeper.server.quorum.FastLeaderElection)
> > > > > [2021-02-28 09:14:20,346] INFO Notification: 2 (message format
> > > version),
> > > > > 111 (n.leader), 0x2800000dd6 (n.zxid), 0xf8 (n.round), LOOKING
> > > (n.state),
> > > > > 111 (n.sid), 0x28 (n.peerEPoch), LOOKING (my state)0 (n.config
> version)
> > > > > (org.apache.zookeeper.server.quorum.FastLeaderElection)
> > > > > [2021-02-28 09:15:20,346] INFO Notification time out: 60000
> > > > > (org.apache.zookeeper.server.quorum.FastLeaderElection)
> > > > > [2021-02-28 09:15:20,347] INFO Notification: 2 (message format
> > > version),
> > > > > 111 (n.leader), 0x2800000dd6 (n.zxid), 0xf8 (n.round), LOOKING
> > > (n.state),
> > > > > 111 (n.sid), 0x28 (n.peerEPoch), LOOKING (my state)0 (n.config
> version)
> > > > > (org.apache.zookeeper.server.quorum.FastLeaderElection)
> > > > > [2021-02-28 09:16:20,347] INFO Notification time out: 60000
> > > > > (org.apache.zookeeper.server.quorum.FastLeaderElection)
> > > > > [2021-02-28 09:16:20,348] INFO Notification: 2 (message format
> > > version),
> > > > > 111 (n.leader), 0x2800000dd6 (n.zxid), 0xf8 (n.round), LOOKING
> > > (n.state),
> > > > > 111 (n.sid), 0x28 (n.peerEPoch), LOOKING (my state)0 (n.config
> version)
> > > > > (org.apache.zookeeper.server.quorum.FastLeaderElection)
> > > > > [2021-02-28 09:17:20,348] INFO Notification time out: 60000
> > > > > (org.apache.zookeeper.server.quorum.FastLeaderElection)
> > > > > [2021-02-28 09:17:20,350] INFO Notification: 2 (message format
> > > version),
> > > > > 111 (n.leader), 0x2800000dd6 (n.zxid), 0xf8 (n.round), LOOKING
> > > (n.state),
> > > > > 111 (n.sid), 0x28 (n.peerEPoch), LOOKING (my state)0 (n.config
> version)
> > > > > (org.apache.zookeeper.server.quorum.FastLeaderElection)
> > > > > [2021-02-28 09:18:20,350] INFO Notification time out: 60000
> > > > > (org.apache.zookeeper.server.quorum.FastLeaderElection)
> > > > > [2021-02-28 09:18:20,351] INFO Notification: 2 (message format
> > > version),
> > > > > 111 (n.leader), 0x2800000dd6 (n.zxid), 0xf8 (n.round), LOOKING
> > > (n.state),
> > > > > 111 (n.sid), 0x28 (n.peerEPoch), LOOKING (my state)0 (n.config
> version)
> > > > > (org.apache.zookeeper.server.quorum.FastLeaderElection)
> > > > > [2021-02-28 09:19:20,352] INFO Notification time out: 60000
> > > > > (org.apache.zookeeper.server.quorum.FastLeaderElection)
> > > > > [2021-02-28 09:19:20,352] INFO Notification: 2 (message format
> > > version),
> > > > > 111 (n.leader), 0x2800000dd6 (n.zxid), 0xf8 (n.round), LOOKING
> > > (n.state),
> > > > > 111 (n.sid), 0x28 (n.peerEPoch), LOOKING (my state)0 (n.config
> version)
> > > > > (org.apache.zookeeper.server.quorum.FastLeaderElection)
> > > > > [2021-02-28 09:20:20,353] INFO Notification time out: 60000
> > > > > (org.apache.zookeeper.server.quorum.FastLeaderElection)
> > > > > [2021-02-28 09:20:20,357] INFO Notification: 2 (message format
> > > version),
> > > > > 111 (n.leader), 0x2800000dd6 (n.zxid), 0xf8 (n.round), LOOKING
> > > (n.state),
> > > > > 111 (n.sid), 0x28 (n.peerEPoch), LOOKING (my state)0 (n.config
> version)
> > > > > (org.apache.zookeeper.server.quorum.FastLeaderElection)
> > > > > [2021-02-28 09:21:20,357] INFO Notification time out: 60000
> > > > > (org.apache.zookeeper.server.quorum.FastLeaderElection)
> > > > > [2021-02-28 09:21:20,358] INFO Notification: 2 (message format
> > > version),
> > > > > 111 (n.leader), 0x2800000dd6 (n.zxid), 0xf8 (n.round), LOOKING
> > > (n.state),
> > > > > 111 (n.sid), 0x28 (n.peerEPoch), LOOKING (my state)0 (n.config
> version)
> > > > > (org.apache.zookeeper.server.quorum.FastLeaderElection)
> > > > > #############################################################
> > > > > Needed to manually restart to force reconnect to ensemble cluster.
> > > > > #############################################################
> > > > > [2021-02-28 09:21:56,110] INFO Reading configuration from:
> > > > > /opt/kafka/config/zookeeper.properties
> > > > > (org.apache.zookeeper.server.quorum.QuorumPeerConfig)
> > > > > [2021-02-28 09:21:56,113] INFO clientPort is not set
> > > > > (org.apache.zookeeper.server.quorum.QuorumPeerConfig)
> > > > > [2021-02-28 09:21:56,115] INFO secureClientPortAddress is
> 0.0.0.0:3184
> > > > > (org.apache.zookeeper.server.quorum.QuorumPeerConfig)
> > > > > [2021-02-28 09:21:56,118] INFO Setting -D
> > > > > jdk.tls.rejectClientInitiatedRenegotiation=true to disable
> > > > client-initiated
> > > > > TLS renegotiation (org.apache.zookeeper.common.X509Util)
> > > > > [2021-02-28 09:21:56,126] INFO autopurge.snapRetainCount set to 10
> > > > > (org.apache.zookeeper.server.DatadirCleanupManager)
> > > > > [2021-02-28 09:21:56,126] INFO autopurge.purgeInterval set to 1
> > > > > (org.apache.zookeeper.server.DatadirCleanupManager)
> > > > > [2021-02-28 09:21:56,129] INFO Purge task started.
> > > > > (org.apache.zookeeper.server.DatadirCleanupManager)
> > > > > [2021-02-28 09:21:56,129] INFO Log4j 1.2 jmx support found and
> enabled.
> > > > > (org.apache.zookeeper.jmx.ManagedUtil)
> > > > > [2021-02-28 09:21:56,135] INFO Starting quorum peer
> > > > > (org.apache.zookeeper.server.quorum.QuorumPeerMain)
> > > > > [2021-02-28 09:21:56,137] INFO zookeeper.snapshot.trust.empty :
> false
> > > > > (org.apache.zookeeper.server.persistence.FileTxnSnapLog)
> > > > > [2021-02-28 09:21:56,146] INFO Purge task completed.
> > > > > (org.apache.zookeeper.server.DatadirCleanupManager)
> > > > > [2021-02-28 09:21:56,187] INFO
> zookeeper.client.portUnification=false
> > > > > (org.apache.zookeeper.server.NettyServerCnxnFactory)
> > > > > [2021-02-28 09:21:56,220] INFO Using
> > > > > org.apache.zookeeper.server.NettyServerCnxnFactory as server
> connection
> > > > > factory (org.apache.zookeeper.server.ServerCnxnFactory)
> > > > > [2021-02-28 09:21:56,228] INFO Server successfully logged in.
> > > > > (org.apache.zookeeper.Login)
> > > > > [2021-02-28 09:21:56,242] INFO zookeeper.snapshot.trust.empty :
> false
> > > > > (org.apache.zookeeper.server.persistence.FileTxnSnapLog)
> > > > > [2021-02-28 09:21:56,242] INFO Local sessions disabled
> > > > > (org.apache.zookeeper.server.quorum.QuorumPeer)
> > > > > [2021-02-28 09:21:56,242] INFO Local session upgrading disabled
> > > > > (org.apache.zookeeper.server.quorum.QuorumPeer)
> > > > > [2021-02-28 09:21:56,243] INFO tickTime set to 2000
> > > > > (org.apache.zookeeper.server.quorum.QuorumPeer)
> > > > > [2021-02-28 09:21:56,243] INFO minSessionTimeout set to 4000
> > > > > (org.apache.zookeeper.server.quorum.QuorumPeer)
> > > > > [2021-02-28 09:21:56,243] INFO maxSessionTimeout set to 40000
> > > > > (org.apache.zookeeper.server.quorum.QuorumPeer)
> > > > > [2021-02-28 09:21:56,243] INFO initLimit set to 5
> > > > > (org.apache.zookeeper.server.quorum.QuorumPeer)
> > > > > [2021-02-28 09:21:56,253] INFO zookeeper.snapshotSizeFactor = 0.33
> > > > > (org.apache.zookeeper.server.ZKDatabase)
> > > > > [2021-02-28 09:21:56,255] INFO Using TLS encrypted quorum
> communication
> > > > > (org.apache.zookeeper.server.quorum.QuorumPeer)
> > > > > [2021-02-28 09:21:56,255] INFO Port unification disabled
> > > > > (org.apache.zookeeper.server.quorum.QuorumPeer)
> > > > > [2021-02-28 09:21:56,255] INFO quorum.auth.enableSasl set to true
> > > > > (org.apache.zookeeper.server.quorum.QuorumPeer)
> > > > > [2021-02-28 09:21:56,255] INFO quorum.auth.serverRequireSasl set to
> > > true
> > > > > (org.apache.zookeeper.server.quorum.QuorumPeer)
> > > > > [2021-02-28 09:21:56,255] INFO quorum.auth.learnerRequireSasl set
> to
> > > true
> > > > > (org.apache.zookeeper.server.quorum.QuorumPeer)
> > > > > [2021-02-28 09:21:56,255] INFO
> quorum.auth.kerberos.servicePrincipal
> > > set
> > > > > to zkquorum/localhost
> (org.apache.zookeeper.server.quorum.QuorumPeer)
> > > > > [2021-02-28 09:21:56,255] INFO quorum.auth.server.saslLoginContext
> set
> > > to
> > > > > QuorumServer (org.apache.zookeeper.server.quorum.QuorumPeer)
> > > > > [2021-02-28 09:21:56,255] INFO
> quorum.auth.learner.saslLoginContext set
> > > > to
> > > > > QuorumLearner (org.apache.zookeeper.server.quorum.QuorumPeer)
> > > > > [2021-02-28 09:21:56,255] INFO quorum.cnxn.threads.size set to 20
> > > > > (org.apache.zookeeper.server.quorum.QuorumPeer)
> > > > > [2021-02-28 09:21:56,257] INFO QuorumServer successfully logged in.
> > > > > (org.apache.zookeeper.Login)
> > > > > [2021-02-28 09:21:56,258] INFO QuorumLearner successfully logged
> in.
> > > > > (org.apache.zookeeper.Login)
> > > > > [2021-02-28 09:21:56,260] INFO Reading snapshot
> > > > > /zookeeper-datastore/version-2/snapshot.2400000034
> > > > > (org.apache.zookeeper.server.persistence.FileSnap)
> > > > > [2021-02-28 09:21:56,511] INFO binding to port
> 0.0.0.0/0.0.0.0:3184
> > > > > (org.apache.zookeeper.server.NettyServerCnxnFactory)
> > > > > [2021-02-28 09:21:56,565] INFO bound to port 3184
> > > > > (org.apache.zookeeper.server.NettyServerCnxnFactory)
> > > > > [2021-02-28 09:21:56,571] INFO Election port bind maximum retries
> is 3
> > > > > (org.apache.zookeeper.server.quorum.QuorumCnxManager)
> > > > > [2021-02-28 09:21:56,574] INFO Creating TLS-only quorum server
> socket
> > > > > (org.apache.zookeeper.server.quorum.QuorumCnxManager)
> > > > > [2021-02-28 09:21:56,575] INFO 111 is accepting connections now, my
> > > > > election bind port: zk-xpto.production.com/10.1.1.99:3888
> > > > > (org.apache.zookeeper.server.quorum.QuorumCnxManager)
> > > > > [2021-02-28 09:21:56,587] INFO LOOKING
> > > > > (org.apache.zookeeper.server.quorum.QuorumPeer)
> > > > > [2021-02-28 09:21:56,592] INFO New election. My id =  111, proposed
> > > > > zxid=0x2800000dd6
> > > (org.apache.zookeeper.server.quorum.FastLeaderElection)
> > > > >
> > > > >
> > > > >
> > > >
> > >
> >
>

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