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Posted to issues@hbase.apache.org by "Mikhail Antonov (JIRA)" <ji...@apache.org> on 2015/09/23 21:16:04 UTC

[jira] [Commented] (HBASE-14473) Compute region locality in parallel

    [ https://issues.apache.org/jira/browse/HBASE-14473?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14905067#comment-14905067 ] 

Mikhail Antonov commented on HBASE-14473:
-----------------------------------------

So hbase.master.balancer.regionLocationCacheTime changed meaning from mins to millisecs? And the default you use got 8 time bigger?

> Compute region locality in parallel
> -----------------------------------
>
>                 Key: HBASE-14473
>                 URL: https://issues.apache.org/jira/browse/HBASE-14473
>             Project: HBase
>          Issue Type: Bug
>          Components: Balancer
>    Affects Versions: 1.2.0
>            Reporter: Elliott Clark
>            Assignee: Elliott Clark
>             Fix For: 2.0.0, 1.2.0, 1.3.0
>
>         Attachments: HBASE-14473-v1.patch, HBASE-14473.patch
>
>
> Right now on large clusters it's necessary to turn off the locality balance cost as it takes too long to compute the region locality. This is because it's computed when need in serial.
> We should compute this in parallel before it's needed.



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