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https://issues.apache.org/jira/browse/HDFS-2753?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13181467#comment-13181467
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Hari Mankude commented on HDFS-2753:
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A similar fix has been done for hdfs-2309. The hdfs-2309 patch for a different
problem addresses this HA issue also.
> Standby namenode stuck in safemode during a failover
> ----------------------------------------------------
>
> Key: HDFS-2753
> URL: https://issues.apache.org/jira/browse/HDFS-2753
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: ha, name-node
> Affects Versions: HA branch (HDFS-1623)
> Reporter: Hari Mankude
> Assignee: Hari Mankude
> Attachments: HDFS-2753.patch
>
>
> Write traffic initiated from the client. Manual failover is done by killing
> NN and converting a different standby to active. NN is restarted as standby.
> The restarted standby stays in safemode forever. More information in the
> description.
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