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From "Ted Yu (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (AMBARI-18574) Set hbase.hregion.memstore.chunkpool.maxsize to 1.0
Date Tue, 20 Dec 2016 16:35:58 GMT

     [ https://issues.apache.org/jira/browse/AMBARI-18574?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Ted Yu updated AMBARI-18574:
----------------------------
    Description: 
The default value for hbase.hregion.memstore.chunkpool.maxsize is:
{code}
  final static float POOL_MAX_SIZE_DEFAULT = 0.0f;
{code}

This would result in chunk pool being disabled, leading to excessive MemStoreLAB chunk allocations.

Ambari should set the value to 1.0

  was:
The default value for hbase.hregion.memstore.chunkpool.maxsize is:
{code}
  final static float POOL_MAX_SIZE_DEFAULT = 0.0f;
{code}
This would result in chunk pool being disabled, leading to excessive MemStoreLAB chunk allocations.

Ambari should set the value to 1.0


> Set hbase.hregion.memstore.chunkpool.maxsize to 1.0
> ---------------------------------------------------
>
>                 Key: AMBARI-18574
>                 URL: https://issues.apache.org/jira/browse/AMBARI-18574
>             Project: Ambari
>          Issue Type: Bug
>            Reporter: Ted Yu
>
> The default value for hbase.hregion.memstore.chunkpool.maxsize is:
> {code}
>   final static float POOL_MAX_SIZE_DEFAULT = 0.0f;
> {code}
> This would result in chunk pool being disabled, leading to excessive MemStoreLAB chunk
allocations.
> Ambari should set the value to 1.0



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