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https://issues.apache.org/jira/browse/HBASE-11780?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14104197#comment-14104197
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Andrew Purtell commented on HBASE-11780:
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bq. Each node will put its load into an HDFS file so no need to send that to
the balancer.
So we'd not publish load metrics and instead put them into a HDFS file? Or
would we write this file *and* also publish to metrics? If the former, isn't
this information useful beyond internal use for balancing?
bq. On the other side, pushing tones of metrics to the master can have an
impact.
In large clusters the master is already processing hundreds of MB of
RegionLoad. Surely we won't do worse using the metrics subsystem as
communication channel instead. Just a thought.
> Add a resource based load balancer
> ----------------------------------
>
> Key: HBASE-11780
> URL: https://issues.apache.org/jira/browse/HBASE-11780
> Project: HBase
> Issue Type: Improvement
> Reporter: Esteban Gutierrez
> Assignee: Esteban Gutierrez
>
> In some situations with heterogeneous hardware it might be helpful to take in
> account the available resources such as RAM, cores or spindles before for the
> region assignment. A form of weight per RS might be an initial approach but
> for also a limit of open regions in a RS or maximum open store files could be
> used.
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