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https://issues.apache.org/jira/browse/HBASE-17515?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15839359#comment-15839359
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Hudson commented on HBASE-17515:
--------------------------------
SUCCESS: Integrated in Jenkins build HBase-Trunk_matrix #2387 (See
[https://builds.apache.org/job/HBase-Trunk_matrix/2387/])
HBASE-17515 Reduce memory footprint of RegionLoads kept by (tedyu: rev
a8bb27b2e0dac5b3645a8592d357b5918eb3ec2e)
* (edit)
hbase-server/src/test/java/org/apache/hadoop/hbase/master/balancer/TestStochasticLoadBalancer.java
* (edit)
hbase-server/src/main/java/org/apache/hadoop/hbase/master/balancer/BaseLoadBalancer.java
* (add)
hbase-server/src/main/java/org/apache/hadoop/hbase/master/balancer/BalancerRegionLoad.java
* (edit)
hbase-server/src/main/java/org/apache/hadoop/hbase/master/balancer/StochasticLoadBalancer.java
> Reduce memory footprint of RegionLoads kept by StochasticLoadBalancer
> ---------------------------------------------------------------------
>
> Key: HBASE-17515
> URL: https://issues.apache.org/jira/browse/HBASE-17515
> Project: HBase
> Issue Type: Improvement
> Reporter: Ted Yu
> Assignee: Tim Brown
> Fix For: 2.0.0, 1.4.0
>
> Attachments: 17515.branch-1.v2.txt, 17515.v1.txt, 17515.v2.txt
>
>
> Currently StochasticLoadBalancer uses the following fields of RegionLoad :
> {code}
> return rl.getReadRequestsCount();
> return rl.getWriteRequestsCount();
> return rl.getMemStoreSizeMB();
> return rl.getStorefileSizeMB();
> {code}
> However, RegionLoad refers to ClusterStatusProtos.RegionLoad which has 18
> fields.
> This means we keep hbase.master.balancer.stochastic.numRegionLoadsToRemember
> (default value 15) RegionLoad's in memory but only use a small portion of
> them.
> This JIRA is to consider creating POJO which wraps the above 4 fields so that
> the memory footprint can be lowered.
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