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https://issues.apache.org/jira/browse/ZOOKEEPER-3873?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Mohammad Arshad updated ZOOKEEPER-3873:
---------------------------------------
Comment: was deleted
(was: Any idea how to reproduce this issue?)
> ClientCnxnSocketNIO#enableWrite throws NullPointerException
> -----------------------------------------------------------
>
> Key: ZOOKEEPER-3873
> URL: https://issues.apache.org/jira/browse/ZOOKEEPER-3873
> Project: ZooKeeper
> Issue Type: Bug
> Components: java client
> Reporter: maoling
> Priority: Minor
> Fix For: 3.7.0
>
>
> I also attach the client side logs here
> {code:java}
> org.apache.zookeeper.KeeperException$ConnectionLossException: KeeperErrorCode
> = ConnectionLoss for
> /bench-watch/12318org.apache.zookeeper.KeeperException$ConnectionLossException:
> KeeperErrorCode = ConnectionLoss for /bench-watch/123182020-06-27
> 13:42:31,898 [myid:127.0.0.1:2181] - WARN
> [pool-1-thread-11-SendThread(127.0.0.1:2181):ClientCnxn$SendThread@1278] -
> Session 0x1001a2fab59004c for sever localhost/127.0.0.1:2181, Closing socket
> connection. Attempting reconnect except it is a
> SessionExpiredException.java.lang.NullPointerException at
> org.apache.zookeeper.ClientCnxnSocketNIO.enableWrite(ClientCnxnSocketNIO.java:377)
> at
> org.apache.zookeeper.ClientCnxnSocketNIO.doTransport(ClientCnxnSocketNIO.java:353)
> at org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1268) at
> org.apache.zookeeper.KeeperException.create(KeeperException.java:102) at
> org.apache.zookeeper.KeeperException.create(KeeperException.java:54) at
> org.apache.zookeeper.ZooKeeper.exists(ZooKeeper.java:1856)
> {code}
>
> {code:java}
> 2020-06-27 13:51:04,334 [myid:] - ERROR [pool-1-thread-12:ClientCnxn@1590] -
> Timeout error occurred for the packet 'clientPath:null serverPath:null
> finished:false header:: 13886,3 replyHeader:: 0,0,0 request::
> '/bench-watch/12815,T response:: '.2020-06-27 13:51:04,334 [myid:] - ERROR
> [pool-1-thread-12:ClientCnxn@1590] - Timeout error occurred for the packet
> 'clientPath:null serverPath:null finished:false header:: 13886,3
> replyHeader:: 0,0,0 request:: '/bench-watch/12815,T response::
> '.2020-06-27 13:51:04,334 [myid:] - ERROR [pool-1-thread-29:ClientCnxn@1590]
> - Timeout error occurred for the packet 'clientPath:null serverPath:null
> finished:false header:: 13395,3 replyHeader:: 0,0,0 request::
> '/bench-watch/12331,T response:: '.2020-06-27 13:51:04,335
> [myid:127.0.0.1:2181] - WARN
> [pool-1-thread-12-SendThread(127.0.0.1:2181):ClientCnxn$SendThread@1278] -
> Session 0x1001a2fab59003d for sever localhost/127.0.0.1:2181, Closing socket
> connection. Attempting reconnect except it is a
> SessionExpiredException.java.nio.channels.CancelledKeyException at
> sun.nio.ch.SelectionKeyImpl.ensureValid(SelectionKeyImpl.java:73) at
> sun.nio.ch.SelectionKeyImpl.interestOps(SelectionKeyImpl.java:77) at
> org.apache.zookeeper.ClientCnxnSocketNIO.enableWrite(ClientCnxnSocketNIO.java:377)
> at
> org.apache.zookeeper.ClientCnxnSocketNIO.doTransport(ClientCnxnSocketNIO.java:353)
> at
> org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1268)2020-06-27
> 13:51:04,336 [myid:127.0.0.1:2181] - INFO
> [pool-1-thread-39-SendThread(127.0.0.1:2181):ClientCnxn$SendThread@1159] -
> Opening socket connection to server localhost/127.0.0.1:2181.2020-06-27
> 13:51:04,336 [myid:127.0.0.1:2181] - INFO
> [pool-1-thread-39-SendThread(127.0.0.1:2181):ClientCnxn$SendThread@1161] -
> SASL config status: Will not attempt to authenticate using SASL (unknown
> error)2020-06-27 13:51:04,337 [myid:127.0.0.1:2181] - INFO
> [pool-1-thread-39-SendThread(127.0.0.1:2181):ClientCnxn$SendThread@993] -
> Socket connection established, initiating session, client: /127.0.0.1:62205,
> server: localhost/127.0.0.1:21812020-06-27 13:51:04,339 [myid:127.0.0.1:2181]
> - INFO
> [pool-1-thread-39-SendThread(127.0.0.1:2181):ClientCnxn$SendThread@1426] -
> Session establishment complete on server localhost/127.0.0.1:2181, session id
> = 0x1001a2fab59005a, negotiated timeout = 40000
> {code}
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