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https://issues.apache.org/jira/browse/HDFS-1922?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13035978#comment-13035978
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Luke Lu commented on HDFS-1922:
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If the properties file is missing, the metrics system would be initialized but
not started (there is a warning about missing config file), which means the
metrics related mbeans will not be registered, besides the metrics system
control mbean, which can be used to (re)start the metrics system dynamically
when the properties file is fixed/updated. Note the metrics itself is still
accumulated and updated, just the publishing (periodic snapshotting and pushing
to sinks and mbeans) part is stopped temporarily.
This only affects admin/server (not normal users) configs which should be
included in the distribution. See the compatibility discussions on the mailing
lists (links on HADOOP-6728) for details.
> Recurring failure in TestJMXGet.testNameNode since build 477 on May 11
> ----------------------------------------------------------------------
>
> Key: HDFS-1922
> URL: https://issues.apache.org/jira/browse/HDFS-1922
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: test
> Reporter: Matt Foley
> Assignee: Luke Lu
> Fix For: 0.23.0
>
> Attachments: hdfs-1922-conf-v1.patch
>
>
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