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From "Sebastian Bauer (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HBASE-3507) requests count per HRegion and rebalance command
Date Mon, 07 Feb 2011 21:19:57 GMT

    [ https://issues.apache.org/jira/browse/HBASE-3507?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12991614#comment-12991614
] 

Sebastian Bauer commented on HBASE-3507:
----------------------------------------

@Ted Yu: maybe average from all regionservers requests counters and if regionserver diverge
from this average(+/- some percent) we move region that leverage this?


@rayan rawson: this was needed only once after hadoop big crash when hbase cannot reassign
regions to the same regionservers. In this form rebalance is not for frequently use

> requests count per HRegion and rebalance command
> ------------------------------------------------
>
>                 Key: HBASE-3507
>                 URL: https://issues.apache.org/jira/browse/HBASE-3507
>             Project: HBase
>          Issue Type: Improvement
>          Components: performance, regionserver
>            Reporter: Sebastian Bauer
>            Priority: Trivial
>         Attachments: hbase-requestsCount-2.patch, hbase-requestsCount.patch
>
>
> Path-1 add another mertic for HRegion to count request made to region.
> Path-2 add another command to hbase shell to grab all regions, sort by requests from
Path-1 and move in round-robin algorithm to servers

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