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https://issues.apache.org/jira/browse/HDFS-16069?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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JiangHua Zhu resolved HDFS-16069.
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Resolution: Duplicate
> Remove locally stored files (edit log) when NameNode becomes Standby
> --------------------------------------------------------------------
>
> Key: HDFS-16069
> URL: https://issues.apache.org/jira/browse/HDFS-16069
> Project: Hadoop HDFS
> Issue Type: Improvement
> Affects Versions: 2.9.2
> Reporter: JiangHua Zhu
> Priority: Minor
>
> When zkfc is working, one of the NameNode (Active) will become the Standby
> state. Before the state change, this NameNode has saved some files (edit
> log), these files are stored in the directory
> (dfs.namenode.edits.dir/dfs.namenode.name.dir) , And will not disappear in
> the short term until the status of this NameNode becomes Active again.
> These files (edit log) are of little significance to the cluster.
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