[ https://issues.apache.org/jira/browse/ZOOKEEPER-3873?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
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} -- This message was sent by Atlassian Jira (v8.3.4#803005)