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https://issues.apache.org/jira/browse/HDFS-7278?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14183401#comment-14183401
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Aaron T. Myers commented on HDFS-7278:
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Latest patch looks pretty good to me, though I think I've noticed another race
condition in the test. In the case of testing the incremental IBR trigger, I
believe that the IBR will be sent promptly regardless of whether or not the
heartbeat is set to a long time or the triggerBlockReport command is sent,
which means that the test can pass without the admin command actually being
run. To test this out, I commented out the call to triggerBlockReport, and
indeed that test still passes, although the full BR test correctly fails.
+1 once this and Akira's doc comment are addressed.
> Add a command that allows sysadmins to manually trigger full block reports
> from a DN
> ------------------------------------------------------------------------------------
>
> Key: HDFS-7278
> URL: https://issues.apache.org/jira/browse/HDFS-7278
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: datanode
> Affects Versions: 2.6.0
> Reporter: Colin Patrick McCabe
> Assignee: Colin Patrick McCabe
> Attachments: HDFS-7278.002.patch, HDFS-7278.003.patch
>
>
> We should add a command that allows sysadmins to manually trigger full block
> reports from a DN.
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