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https://issues.apache.org/jira/browse/HADOOP-18624?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18013351#comment-18013351
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Takanobu Asanuma commented on HADOOP-18624:
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[~xuzq_zander] Why did you close this jira? The PR hasn't been merged.
> Leaked calls may cause ObserverNameNode OOM.
> --------------------------------------------
>
> Key: HADOOP-18624
> URL: https://issues.apache.org/jira/browse/HADOOP-18624
> Project: Hadoop Common
> Issue Type: Bug
> Reporter: ZanderXu
> Assignee: ZanderXu
> Priority: Major
> Labels: pull-request-available
>
> Leaked calls may cause ObserverNameNode OOM.
>
> During Observer Namenode tailing edits from JournalNode, it will cancel slow
> request with an interruptException if there are a majority of successful
> responses.
> There is a bug in Client.java, it will not clean the interrupted call from
> the calls. The leaked calls may cause ObserverNameNode OOM.
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