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From "Enis Soztutar (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HBASE-10661) TestStochasticLoadBalancer.testRegionReplicationOnMidClusterWithRacks() is flaky
Date Fri, 07 Mar 2014 02:10:43 GMT

     [ https://issues.apache.org/jira/browse/HBASE-10661?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Enis Soztutar updated HBASE-10661:

    Attachment: hbase-10661_v2.patch

Attaching a v2 patch, since we still see some failures after v1 patch. 

This patch adds another candidate generator which is trying to move away the regions which
are co-located in the same rack. This will help with the test as well as the production cases
because the LB is expected to converse sooner. 

> TestStochasticLoadBalancer.testRegionReplicationOnMidClusterWithRacks() is flaky
> --------------------------------------------------------------------------------
>                 Key: HBASE-10661
>                 URL: https://issues.apache.org/jira/browse/HBASE-10661
>             Project: HBase
>          Issue Type: Sub-task
>            Reporter: Enis Soztutar
>            Assignee: Enis Soztutar
>             Fix For: hbase-10070
>         Attachments: hbase-10661_v1.patch, hbase-10661_v2.patch
> One of the tests introduced in HBASE-10351 seems to be flaky. The LB cannot compute the
fully assignment plan in time when there are racks and region replicas for the test, so it
is failing sometimes. 
> We can reduce the computation amount, and increase the LB runtime to make the test stable.

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