maoling created ZOOKEEPER-3873:
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Summary: 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
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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