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https://issues.apache.org/jira/browse/ZOOKEEPER-4410?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17437112#comment-17437112
]
TangHq commented on ZOOKEEPER-4410:
-----------------------------------
os: ubuntu 20.04
zookeeper-server: 3.7.0 single
client: python kazoo
zoo.cfg:
tickTime=10000
initLimit=10
syncLimit=10
dataDir=/data/zk_data
clientPort=2181
maxClientCnxns=160000
Client TImeout: 3600s
> Unable to read additional data from client, it probably closed the socket
> -------------------------------------------------------------------------
>
> Key: ZOOKEEPER-4410
> URL: https://issues.apache.org/jira/browse/ZOOKEEPER-4410
> Project: ZooKeeper
> Issue Type: Bug
> Components: server
> Affects Versions: 3.7
> Environment: os: ubuntu 20.04
> zookeeper-server: 3.7.0 single
> client: python kazoo
>
> zoo.cfg:
> tickTime=10000
> initLimit=10
> syncLimit=10
> dataDir=/data/zk_data
> clientPort=2181
> maxClientCnxns=160000
>
> Client TImeout: 3600s
>
> Reporter: TangHq
> Priority: Major
>
> Hi,
>
> When zookeeper is running, there will be a warning message in the log and
> fter zookeeper has been running for a period of time, the connection between
> the client and the server will be lost after about one or two days.
>
> There are my log report:
> 2021-10-29 09:27:32,358 [myid:] - INFO [SessionTracker:ZooKeeperServer@628] -
> Expiring session 0x10013a65a780163, timeout of 20000ms exceeded
> 2021-10-29 09:27:47,827 [myid:] - WARN [NIOWorkerThread-84:NIOServerCnxn@371]
> - Unexpected exception
> EndOfStreamException: Unable to read additional data from client, it probably
> closed the socket: address = /10.*.*.*:34658, session = 0x10013a65a780164
> at
> org.apache.zookeeper.server.NIOServerCnxn.handleFailedRead(NIOServerCnxn.java:170)
> at org.apache.zookeeper.server.NIOServerCnxn.doIO(NIOServerCnxn.java:333)
> at
> org.apache.zookeeper.server.NIOServerCnxnFactory$IOWorkRequest.doWork(NIOServerCnxnFactory.java:508)
> at
> org.apache.zookeeper.server.WorkerService$ScheduledWorkRequest.run(WorkerService.java:154)
> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
> at java.lang.Thread.run(Thread.java:748)
> 2021-10-29 09:28:12,358 [myid:] - INFO [SessionTracker:ZooKeeperServer@628] -
> Expiring session 0x10013a65a780164, timeout of 20000ms exceeded
> 2021-10-29 09:30:14,272 [myid:] - WARN
> [NIOWorkerThread-103:NIOServerCnxn@371] - Unexpected exception
> EndOfStreamException: Unable to read additional data from client, it probably
> closed the socket: address = /10.*.*.*:53590, session = 0x10013a65a780166
> at
> org.apache.zookeeper.server.NIOServerCnxn.handleFailedRead(NIOServerCnxn.java:170)
> at org.apache.zookeeper.server.NIOServerCnxn.doIO(NIOServerCnxn.java:333)
> at
> org.apache.zookeeper.server.NIOServerCnxnFactory$IOWorkRequest.doWork(NIOServerCnxnFactory.java:508)
> at
> org.apache.zookeeper.server.WorkerService$ScheduledWorkRequest.run(WorkerService.java:154)
> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
> at java.lang.Thread.run(Thread.java:748)
> 2021-10-29 09:30:42,358 [myid:] - INFO [SessionTracker:ZooKeeperServer@628] -
> Expiring session 0x10013a65a780166, timeout of 20000ms exceeded
>
> I search something related of this warn in internet and increased tickTime,
> syncLimit, but it's also no effect.
>
> And the client error:
> WARNING - Connection dropped: outstanding heartbeat ping not received\n'
> WARNING - Transition to CONNECTING\n'
> INFO - [stdout] : b'4: 2021-10-31 23:23:10,581 - INFO - Zookeeper connection
> lost\n'
> INFO - [stdout] : b'4: Traceback (most recent call last):\n'
> INFO - [stdout] : b'4: File "/home/kazoo/cluster.py", line 376, in <module>\n'
> INFO - [stdout] : b'4: test_cluster_config = sys.argv[1]\n'
> INFO - [stdout] : b'4: File "/home/kazoo/cluster.py", line 219, in
> update_cumulus\n'
> INFO - [stdout] : b'4: if label_not_found:\n'
> INFO - [stdout] : b'4: File "/home/kazoo/zkstate.py", line 25, in
> processing\n'
> INFO - [stdout] : b'4: return
> self._zk.exists(self._path+"/"+self._name+"processing")\n'
> INFO - [stdout] : b'4: File
> "/usr/local/lib/python3.6/site-packages/kazoo/client.py", line 1123, in
> exists\n'
> INFO - [stdout] : b'4: return self.exists_async(path, watch=watch).get()\n'
> INFO - [stdout] : b'4: File
> "/usr/local/lib/python3.6/site-packages/kazoo/handlers/utils.py", line 75, in
> get\n'
> INFO - [stdout] : b'4: raise self._exception\n'
> INFO - [stdout] : b'4: kazoo.exceptions.ConnectionLoss\n'
>
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