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https://issues.apache.org/jira/browse/HDFS-8991?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15349760#comment-15349760
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Mingliang Liu commented on HDFS-8991:
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[HDFS-10572] tracks the known flaky test TestOfflineEditsViewer.
> Provide information on BPOfferService in DN JMX
> -----------------------------------------------
>
> Key: HDFS-8991
> URL: https://issues.apache.org/jira/browse/HDFS-8991
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: datanode
> Reporter: Haohui Mai
> Assignee: Mingliang Liu
> Attachments: HDFS-8991.000.patch, HDFS-8991.001.patch
>
>
> In cases like HDFS-7714 where the BPOfferService thread is missing, which
> require nontrivial effort to debug that which NN that the DN thinks it active
> / standby.
> It would make sense to make the information more accessible through JMX or
> Web UI.
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