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https://issues.apache.org/jira/browse/HDFS-4974?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13704807#comment-13704807
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Jing Zhao commented on HDFS-4974:
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Currently disallowSnapshot() is not idempotent: exception will be thrown if the
target directory is not a snapshottable directory. Maybe we should file a jira
to make it idempotent.
> Analyze and add annotations to Namenode and Datanode protocol methods to
> enable retry
> -------------------------------------------------------------------------------------
>
> Key: HDFS-4974
> URL: https://issues.apache.org/jira/browse/HDFS-4974
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: ha, namenode
> Reporter: Suresh Srinivas
>
> This jira is intended for:
> # Discussing current @Idempotent annotations in HDFS protocols and adding
> that annotation where it is missing.
> # Discuss how retry should be enabled for non-idempotent requests.
> I will post the analysis of current methods in subsequent comment.
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