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https://issues.apache.org/jira/browse/HDFS-5025?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13723518#comment-13723518
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Suresh Srinivas commented on HDFS-5025:
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+1 for the patch with +1 from Jenkins.
> Record ClientId and CallId in EditLog to enable rebuilding retry cache in
> case of HA failover
> ---------------------------------------------------------------------------------------------
>
> Key: HDFS-5025
> URL: https://issues.apache.org/jira/browse/HDFS-5025
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: ha, namenode
> Affects Versions: 3.0.0
> Reporter: Jing Zhao
> Assignee: Jing Zhao
> Attachments: editsStored, HDFS-5025.000.patch, HDFS-5025.001.patch,
> HDFS-5025.002.patch, HDFS-5025.003.patch, HDFS-5025.004.patch,
> HDFS-5025.005.patch
>
>
> In case of HA failover, we need to be able to rebuild the retry cache in the
> other Namenode. We thus need to record client id and call id in the edit log
> for those "AtMostOnce" operations.
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