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https://issues.apache.org/jira/browse/HBASE-3906?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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jian zhang updated HBASE-3906:
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Description:
1、Start hbase cluster;
2、After hmaster finish regions assignement,use jmap to dump the memory of
hmaster;
3、Use MAT to analyse the dump file,there are too many RegionLoad instances,and
these instances occupy more than 3G memory;
was:
1、Start hbase cluster;
2、After hmaster finish regions assignement,use jmap to dump the memory of
hmaster;
3、Use MAT to analyse the dump file,there are too many HServerLoad instances,and
these instances occupy more than 3G memory;
Summary: When HMaster is running,there are a lot of RegionLoad
instances（far greater than the regions）,it has risk of OOME. (was: When
HMaster is running,there are a lot of HServerLoad instances（far greater than
the regions）,it has risk of OOME.)
> When HMaster is running,there are a lot of RegionLoad instances（far greater
> than the regions）,it has risk of OOME.
> ------------------------------------------------------------------------------------------------------------------
>
> Key: HBASE-3906
> URL: https://issues.apache.org/jira/browse/HBASE-3906
> Project: HBase
> Issue Type: Improvement
> Components: master
> Affects Versions: 0.90.2
> Environment: 1 hmaster,4 regionserver,about 100,000 regions.
> Reporter: jian zhang
> Fix For: 0.90.4
>
> Original Estimate: 168h
> Remaining Estimate: 168h
>
> 1、Start hbase cluster;
> 2、After hmaster finish regions assignement,use jmap to dump the memory of
> hmaster;
> 3、Use MAT to analyse the dump file,there are too many RegionLoad
> instances,and these instances occupy more than 3G memory;
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