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https://issues.apache.org/jira/browse/HDFS-4138?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13490684#comment-13490684
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Kihwal Lee commented on HDFS-4138:
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According to HDFS-4114, it looks like BackupNode is not going away any time
soon. I am attaching a minimal patch to get rid of the exception from metrics
initialization. For branch-2, we also need HDFS-3625.
> BackupNode startup fails due to uninitialized edit log
> ------------------------------------------------------
>
> Key: HDFS-4138
> URL: https://issues.apache.org/jira/browse/HDFS-4138
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: ha, name-node
> Affects Versions: 2.0.3-alpha
> Reporter: Kihwal Lee
> Assignee: Kihwal Lee
>
> It was notices by TestBackupNode.testCheckpointNode failure. When a backup
> node is getting started, it tries to enter active state and start common
> services. But when it fails to start services and exits, which is caught by
> the exit util.
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