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https://issues.apache.org/jira/browse/HDFS-7836?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14348237#comment-14348237
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stack commented on HDFS-7836:
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The JVM by default publishes via JMX offheap usage in the
java.lang.MemoryPool#Memory,NonHeapMemoryUsage bean. It has committed/max/used.
If insufficient, could figure how to expose more for sure.
> BlockManager Scalability Improvements
> -------------------------------------
>
> Key: HDFS-7836
> URL: https://issues.apache.org/jira/browse/HDFS-7836
> Project: Hadoop HDFS
> Issue Type: Improvement
> Reporter: Charles Lamb
> Assignee: Charles Lamb
> Attachments: BlockManagerScalabilityImprovementsDesign.pdf
>
>
> Improvements to BlockManager scalability.
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