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https://issues.apache.org/jira/browse/SPARK-3322?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14117117#comment-14117117
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Prashant Sharma commented on SPARK-3322:
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I remember seeing this discussion somewhere else as well, probably on a pull
request. It seems the PR is not linked to this issue somehow. Would be great if
you could do it.
> Log a ConnectionManager error when the application ends
> -------------------------------------------------------
>
> Key: SPARK-3322
> URL: https://issues.apache.org/jira/browse/SPARK-3322
> Project: Spark
> Issue Type: Bug
> Components: Spark Core
> Affects Versions: 1.1.0
> Reporter: wangfei
>
> Athough it does not influence the result, it always would log an error from
> ConnectionManager.
> Sometimes only log "ConnectionManagerId(vm2,40992) not found" and sometimes
> it also will log "CancelledKeyException"
> The log Info as fellow:
> 14/08/29 16:54:53 ERROR ConnectionManager: Corresponding SendingConnection to
> ConnectionManagerId(vm2,40992) not found
> 14/08/29 16:54:53 INFO ConnectionManager: key already cancelled ?
> sun.nio.ch.SelectionKeyImpl@457245f9
> java.nio.channels.CancelledKeyException
> at
> org.apache.spark.network.ConnectionManager.run(ConnectionManager.scala:386)
> at
> org.apache.spark.network.ConnectionManager$$anon$4.run(ConnectionManager.scala:139)
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