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From "Adrian Muraru (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HBASE-7205) Coprocessor classloader is replicated for all regions in the HRegionServer
Date Wed, 21 Nov 2012 23:42:58 GMT

     [ https://issues.apache.org/jira/browse/HBASE-7205?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Adrian Muraru updated HBASE-7205:
---------------------------------

    Description: 
HBASE-6308 introduced a new custom CoprocessorClassLoader to load the coprocessor classes
and a new instance of this CL is created for each single HRegion opened. This leads to OOME-PermGen
when the number of regions go above hundres / region server. 
Having the table coprocessor jailed in a separate classloader is good however we should create
only one for all regions of a table in each HRS.


  was:
HBASE-6308 introduced a new custom CoprocessorClassLoader to load the coprocessor classes
and a new instance of this CL is created for each single HRegion opened. This leads to OOME-PermGen
when the number of regions go above hundres / region server. 
Having the table coprocessor jailed in a separate classloader is good however we should create
only one for all table regions in each HRS.


    
> Coprocessor classloader is replicated for all regions in the HRegionServer
> --------------------------------------------------------------------------
>
>                 Key: HBASE-7205
>                 URL: https://issues.apache.org/jira/browse/HBASE-7205
>             Project: HBase
>          Issue Type: Bug
>          Components: Coprocessors
>    Affects Versions: 0.92.2, 0.94.2
>            Reporter: Adrian Muraru
>
> HBASE-6308 introduced a new custom CoprocessorClassLoader to load the coprocessor classes
and a new instance of this CL is created for each single HRegion opened. This leads to OOME-PermGen
when the number of regions go above hundres / region server. 
> Having the table coprocessor jailed in a separate classloader is good however we should
create only one for all regions of a table in each HRS.

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