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https://issues.apache.org/jira/browse/HDFS-16083?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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lei w updated HDFS-16083:
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Attachment: HDFS-16083.005.patch
> Forbid Observer NameNode trigger active namenode log roll
> ----------------------------------------------------------
>
> Key: HDFS-16083
> URL: https://issues.apache.org/jira/browse/HDFS-16083
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: namanode
> Reporter: lei w
> Assignee: lei w
> Priority: Minor
> Attachments: HDFS-16083.001.patch, HDFS-16083.002.patch,
> HDFS-16083.003.patch, HDFS-16083.004.patch, HDFS-16083.005.1.patch,
> HDFS-16083.005.patch, activeRollEdits.png
>
>
> When the Observer NameNode is turned on in the cluster, the Active NameNode
> will receive rollEditLog RPC requests from the Standby NameNode and Observer
> NameNode in a short time. Observer NameNode's rollEditLog request is a
> repetitive operation, so should we forbid Observer NameNode trigger active
> namenode log roll ? We 'dfs.ha.log-roll.period' configured is 300( 5
> minutes) and active NameNode receives rollEditLog RPC as shown in
> activeRollEdits.png
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