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https://issues.apache.org/jira/browse/ZOOKEEPER-4551?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Mate Szalay-Beko resolved ZOOKEEPER-4551.
-----------------------------------------
Fix Version/s: 3.7.2
3.9.0
3.6.4
3.8.1
Resolution: Fixed
Issue resolved by pull request 1889
[https://github.com/apache/zookeeper/pull/1889]
> Do not log spammy stacktrace when a client closes its connection
> ----------------------------------------------------------------
>
> Key: ZOOKEEPER-4551
> URL: https://issues.apache.org/jira/browse/ZOOKEEPER-4551
> Project: ZooKeeper
> Issue Type: Improvement
> Components: server
> Reporter: Enrico Olivelli
> Assignee: Enrico Olivelli
> Priority: Minor
> Labels: pull-request-available
> Fix For: 3.7.2, 3.9.0, 3.6.4, 3.8.1
>
> Time Spent: 1h
> Remaining Estimate: 0h
>
> Currently (3.8, but this has always been happening IIRC), the server logs a
> scary stacktrace when a client closes its connection.
> This is not something the administrator should be afraid of, so we should not
> write the stacktrace on the logs.
>
> {code:java}
>
> 2022-05-31T08:55:22,205+0000 [NIOWorkerThread-1] WARN
> org.apache.zookeeper.server.NIOServerCnxn - Unexpected exception
> │
> │ org.apache.zookeeper.server.ServerCnxn$EndOfStreamException: Unable to read
> additional data from client, it probably closed the socket: address =
> /10.44.1.5:43468, session = 0x100002ec7a30032 │
> │ at
> org.apache.zookeeper.server.NIOServerCnxn.handleFailedRead(NIOServerCnxn.java:170)
> ~[org.apache.zookeeper-zookeeper-3.8.0.jar:3.8.0]
> │
> │ at
> org.apache.zookeeper.server.NIOServerCnxn.doIO(NIOServerCnxn.java:333)
> [org.apache.zookeeper-zookeeper-3.8.0.jar:3.8.0]
> │
> │ at
> org.apache.zookeeper.server.NIOServerCnxnFactory$IOWorkRequest.doWork(NIOServerCnxnFactory.java:508)
> [org.apache.zookeeper-zookeeper-3.8.0.jar:3.8.0]
> │
> │ at
> org.apache.zookeeper.server.WorkerService$ScheduledWorkRequest.run(WorkerService.java:153)
> [org.apache.zookeeper-zookeeper-3.8.0.jar:3.8.0]
> {code}
> │
> │ at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
> [?:?]
> │
> │ at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
> [?:?]
> │
> │ at java.lang.Thread.run(Thread.java:829) [?:?]
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