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From "Chris Nauroth (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-7836) BlockManager Scalability Improvements
Date Thu, 05 Mar 2015 23:14:39 GMT

    [ https://issues.apache.org/jira/browse/HDFS-7836?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14349599#comment-14349599
] 

Chris Nauroth commented on HDFS-7836:
-------------------------------------

The thing we're losing is the ability to measure memory consumption by the block map specifically.
 The OS and standard JMX metrics are great for measuring the whole process in aggregate, but
it would be nice to add another counter to compensate for the measurement we'd be losing.

> 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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