hbase-issues mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-17515) Reduce memory footprint of RegionLoads kept by StochasticLoadBalancer
Date Thu, 26 Jan 2017 11:13:24 GMT

    [ https://issues.apache.org/jira/browse/HBASE-17515?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15839574#comment-15839574
] 

Hudson commented on HBASE-17515:
--------------------------------

SUCCESS: Integrated in Jenkins build HBase-1.4 #604 (See [https://builds.apache.org/job/HBase-1.4/604/])
HBASE-17515 Reduce memory footprint of RegionLoads kept by (tedyu: rev a0fac0894b9470fe1b4eb5c77f482298c0d4cd6d)
* (edit) hbase-server/src/main/java/org/apache/hadoop/hbase/master/balancer/BaseLoadBalancer.java
* (edit) hbase-server/src/main/java/org/apache/hadoop/hbase/master/balancer/StochasticLoadBalancer.java
* (add) hbase-server/src/main/java/org/apache/hadoop/hbase/master/balancer/BalancerRegionLoad.java
* (edit) hbase-server/src/test/java/org/apache/hadoop/hbase/master/balancer/TestStochasticLoadBalancer.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.



--
This message was sent by Atlassian JIRA
(v6.3.4#6332)

Mime
View raw message