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https://issues.apache.org/jira/browse/HDFS-4233?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13507046#comment-13507046
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Kihwal Lee commented on HDFS-4233:
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I just found out something equivalent has already been done in trunk. I will
just find the jira and make that as dependency.
> NN keeps serving even after no journals started while rolling edit
> ------------------------------------------------------------------
>
> Key: HDFS-4233
> URL: https://issues.apache.org/jira/browse/HDFS-4233
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: namenode
> Affects Versions: 0.23.5
> Reporter: Kihwal Lee
> Priority: Blocker
> Attachments: hdfs-4233.branch-0.23.patch,
> hdfs-4233.branch-0.23.patch, hdfs-4233-branch-0.23-quick-death.patch
>
>
> We've seen namenode keeps serving even after rollEditLog() failure. Instead
> of taking a corrective action or regard this condition as FATAL, it keeps on
> serving and modifying its file system state. No logs are written from this
> point, so if the namenode is restarted, there will be data loss.
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