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https://issues.apache.org/jira/browse/HBASE-15210?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15133570#comment-15133570
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Hudson commented on HBASE-15210:
--------------------------------
FAILURE: Integrated in HBase-1.3 #535 (See
[https://builds.apache.org/job/HBase-1.3/535/])
HBASE-15210 Undo aggressive load balancer logging at tens of lines per (stack:
rev 2203d55b7d58a32cd879886bd4ac02df9c0fd387)
*
hbase-server/src/main/java/org/apache/hadoop/hbase/master/balancer/BaseLoadBalancer.java
> Undo aggressive load balancer logging at tens of lines per millisecond
> ----------------------------------------------------------------------
>
> Key: HBASE-15210
> URL: https://issues.apache.org/jira/browse/HBASE-15210
> Project: HBase
> Issue Type: Sub-task
> Components: Balancer
> Affects Versions: 1.2.0
> Reporter: stack
> Assignee: stack
> Fix For: 2.0.0, 1.2.0, 1.3.0
>
> Attachments: 15210.patch
>
>
> Sometimes the load balancer falls into a state of aggressive logging in 1.2.0
> writing out ten lines a millisecond like this:
> {code}
> 2016-02-02 17:15:01,382 DEBUG
> [ve0524.halxg.cloudera.com,16000,1454461776827_ChoreService_1]
> balancer.BaseLoadBalancer: Lowest locality region server with non zero
> regions is ve0540.halxg.cloudera.com with locality 0.22908874
> 2016-02-02 17:15:01,382 DEBUG
> [ve0524.halxg.cloudera.com,16000,1454461776827_ChoreService_1]
> balancer.BaseLoadBalancer: Lowest locality region index is 3 and its region
> server contains 4 regions
> 2016-02-02 17:15:01,384 DEBUG
> [ve0524.halxg.cloudera.com,16000,1454461776827_ChoreService_1]
> balancer.BaseLoadBalancer: Lowest locality region server with non zero
> regions is ve0540.halxg.cloudera.com with locality 0.22908874
> 2016-02-02 17:15:01,384 DEBUG
> [ve0524.halxg.cloudera.com,16000,1454461776827_ChoreService_1]
> balancer.BaseLoadBalancer: Lowest locality region index is 3 and its region
> server contains 4 regions
> 2016-02-02 17:15:01,386 DEBUG
> [ve0524.halxg.cloudera.com,16000,1454461776827_ChoreService_1]
> balancer.BaseLoadBalancer: Lowest locality region server with non zero
> regions is ve0540.halxg.cloudera.com with locality 0.22908874
> 2016-02-02 17:15:01,386 DEBUG
> [ve0524.halxg.cloudera.com,16000,1454461776827_ChoreService_1]
> balancer.BaseLoadBalancer: Lowest locality region index is 2 and its region
> server contains 4 regions
> 2016-02-02 17:15:01,387 DEBUG
> [ve0524.halxg.cloudera.com,16000,1454461776827_ChoreService_1]
> balancer.BaseLoadBalancer: Lowest locality region server with non zero
> regions is ve0540.halxg.cloudera.com with locality 0.22908874
> 2016-02-02 17:15:01,387 DEBUG
> [ve0524.halxg.cloudera.com,16000,1454461776827_ChoreService_1]
> balancer.BaseLoadBalancer: Lowest locality region index is 3 and its region
> server contains 4 regions
> 2016-02-02 17:15:01,388 DEBUG
> [ve0524.halxg.cloudera.com,16000,1454461776827_ChoreService_1]
> balancer.BaseLoadBalancer: Lowest locality region server with non zero
> regions is ve0540.halxg.cloudera.com with locality 0.22908874
> 2016-02-02 17:15:01,388 DEBUG
> [ve0524.halxg.cloudera.com,16000,1454461776827_ChoreService_1]
> balancer.BaseLoadBalancer: Lowest locality region index is 3 and its region
> server contains 4 regions
> 2016-02-02 17:15:01,388 DEBUG
> [ve0524.halxg.cloudera.com,16000,1454461776827_ChoreService_1]
> balancer.BaseLoadBalancer: Lowest locality region server with non zero
> regions is ve0540.halxg.cloudera.com with locality 0.22908874
> {code}
> This issue is about less logging.
> This log was added recently by this:
> commit 54028140f4f19a6af81c8c8f29dda0c52491a0c9
> Author: tedyu <yuzhih...@gmail.com>
> Date: Thu Aug 13 09:11:59 2015 -0700
> HBASE-13376 Improvements to Stochastic load balancer (Vandana
> Ayyalasomayajula)
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