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https://issues.apache.org/jira/browse/HDFS-17938?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18091805#comment-18091805
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ASF GitHub Bot commented on HDFS-17938:
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fuchaohong opened a new pull request, #8566:
URL: https://github.com/apache/hadoop/pull/8566
Add the NumBlocks metric, which can be used to warn about the heap size of
the DataNode.
> Add the metrics NumBlocks in datanode.
> --------------------------------------
>
> Key: HDFS-17938
> URL: https://issues.apache.org/jira/browse/HDFS-17938
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: datanode
> Reporter: fuchaohong
> Priority: Major
>
> Add the NumBlocks metric, which can be used to warn about the heap size of
> the DataNode.
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