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https://issues.apache.org/jira/browse/HDFS-10733?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16133590#comment-16133590
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Erik Krogen commented on HDFS-10733:
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[~yangjiandan], you are absolutely right. I have filed HDFS-12323 for this bug.
> NameNode terminated after full GC thinking QJM is unresponsive.
> ---------------------------------------------------------------
>
> Key: HDFS-10733
> URL: https://issues.apache.org/jira/browse/HDFS-10733
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: namenode, qjm
> Affects Versions: 2.6.4
> Reporter: Konstantin Shvachko
> Assignee: Vinitha Reddy Gankidi
> Fix For: 2.8.0, 2.9.0, 2.7.4, 3.0.0-alpha2
>
> Attachments: HDFS-10733.001.patch, HDFS-10733.002.patch
>
>
> NameNode went into full GC while in {{AsyncLoggerSet.waitForWriteQuorum()}}.
> After completing GC it checks if the timeout for quorum is reached. If the GC
> was long enough the timeout can expire, and {{QuorumCall.waitFor()}} will
> throw {{TimeoutExcpetion}}. Finally {{FSEditLog.logSync()}} catches the
> exception and terminates NameNode.
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