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From "Guanghao Zhang (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-17261) Balancer makes no sense on tip of branch-1: says balanced when not
Date Fri, 03 Feb 2017 11:16:51 GMT

    [ https://issues.apache.org/jira/browse/HBASE-17261?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15851354#comment-15851354

Guanghao Zhang commented on HBASE-17261:

Sorry for reply late. This patch is only make the default behavior same with before HBASE-15529.
And when user set hbase.master.balancer.stochastic.minCostNeedBalance to a non-zero value,
the user need change the default multiplier config, too. I thought this and HBASE-17565's
fix are both necessary. I left some comment on HBASE-17565.

> Balancer makes no sense on tip of branch-1: says balanced when not
> ------------------------------------------------------------------
>                 Key: HBASE-17261
>                 URL: https://issues.apache.org/jira/browse/HBASE-17261
>             Project: HBase
>          Issue Type: Bug
>            Reporter: stack
>            Assignee: Guanghao Zhang
>         Attachments: HBASE-17261.patch
> Running ITBLL on tip of branch-1, I see this in log when I try to balance:
> {code}
> 2016-12-05 16:42:21,031 INFO  [RpcServer.deafult.FPBQ.Fifo.handler=46,queue=1,port=16000]
balancer.StochasticLoadBalancer: Skipping load balancing because balanced cluster; total cost
is 525.2547686174673|
> , sum multiplier is 111087.0 min cost which need balance is 0.05
> {code}
> Its some old nonsense. 
> Does this every time I balance. Can't even force a balance.

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