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Posted to dev@zookeeper.apache.org by "Gaurav Bisht (Jira)" <ji...@apache.org> on 2021/08/27 07:23:00 UTC

[jira] [Created] (ZOOKEEPER-4354) Ignoring unexpected runtime exception java.nio.channels.CancelledKeyException

Gaurav Bisht created ZOOKEEPER-4354:
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             Summary:  Ignoring unexpected runtime exception java.nio.channels.CancelledKeyException
                 Key: ZOOKEEPER-4354
                 URL: https://issues.apache.org/jira/browse/ZOOKEEPER-4354
             Project: ZooKeeper
          Issue Type: Bug
            Reporter: Gaurav Bisht


We are using  Zookeeper version: 3.4.8 of 3 server's cluster. Our cluster goes down / restart automatically with below error.

2021-08-26 21:50:21,323 [myid:1] - WARN [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2181:NIOServerCnxnFactory@213] - Ignoring unexpected runtime exception
java.nio.channels.CancelledKeyException
 at sun.nio.ch.SelectionKeyImpl.ensureValid(SelectionKeyImpl.java:73)
 at sun.nio.ch.SelectionKeyImpl.readyOps(SelectionKeyImpl.java:87)
 at org.apache.zookeeper.server.NIOServerCnxnFactory.run(NIOServerCnxnFactory.java:182)
 at java.lang.Thread.run(Thread.java:748)

 

Please provide the resolution of this problem. 

 

Thanks

 



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