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https://issues.apache.org/jira/browse/HDFS-15323?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17099198#comment-17099198
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Konstantin Shvachko commented on HDFS-15323:
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Thanks [~ayushtkn] and [~xkrogen] for prompt reviews.
I just committed this to tunk, and branches 3.3, 3.2, 3.1, 2.10.
I lost track of ongoing releases, please cherry pick this to respective
branches.
> StandbyNode fails transition to active due to insufficient transaction tailing
> ------------------------------------------------------------------------------
>
> Key: HDFS-15323
> URL: https://issues.apache.org/jira/browse/HDFS-15323
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: namenode, qjm
> Affects Versions: 2.7.7
> Reporter: Konstantin Shvachko
> Assignee: Konstantin Shvachko
> Priority: Major
> Attachments: HDFS-15323-branch-2.10.002.patch,
> HDFS-15323.000.unitTest.patch, HDFS-15323.001.patch, HDFS-15323.002.patch
>
>
> StandbyNode is asked to {{transitionToActive()}}. If it fell too far behind
> in tailing journal transaction (from QJM) it can crash with
> {{IllegalStateException}}.
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