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https://issues.apache.org/jira/browse/HDFS-14998?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16982008#comment-16982008
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Fei Hui commented on HDFS-14998:
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[~csun]Thanks for your comments.
I think the main motivation for supporting observer in ZKFC is that the
namenode can participate in automatic failover after administrator manually
transitions observer namenode to standby namenode. Is it right? Right now
observer namenode can not participate in automatic failover.
> Update Observer Namenode doc for ZKFC after HDFS-14130
> ------------------------------------------------------
>
> Key: HDFS-14998
> URL: https://issues.apache.org/jira/browse/HDFS-14998
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: documentation
> Affects Versions: 3.3.0
> Reporter: Fei Hui
> Assignee: Fei Hui
> Priority: Minor
> Attachments: HDFS-14998.001.patch, HDFS-14998.002.patch
>
>
> After HDFS-14130, we should update observer namenode doc, observer namenode
> can run with ZKFC running
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