[jira] [Assigned] (HBASE-17294) External Configuration for Memory Compaction

["Eshcar Hillel (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HBASE-17294?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Eshcar Hillel reassigned HBASE-17294:
-------------------------------------

    Assignee: Eshcar Hillel

> External Configuration for Memory Compaction 
> ---------------------------------------------
>
>                 Key: HBASE-17294
>                 URL: https://issues.apache.org/jira/browse/HBASE-17294
>             Project: HBase
>          Issue Type: Sub-task
>            Reporter: Eshcar Hillel
>            Assignee: Eshcar Hillel
>
> We would like to have a single external knob to control memstore compaction.
> Possible memstore compaction policies are none, basic, and eager.
> This sub-task allows to set this property at the column family level at table creation time:
> {code}
> create ‘<tablename>’,
>    {NAME => ‘<cfname>’, 
>     IN_MEMORY_COMPACTION => ‘<NONE|BASIC|EAGER>’}
> {code}
> or to set this at the global configuration level by setting the property in abase-site.xml, with BASIC being the default value:
> {code}
> <property>
> 	<name>hbase.hregion.compacting.memstore.type</name>
> 	<value><NONE|BASIC|EAGER></value>
> </property>
> {code}
> The values used in this property can change as memstore compaction policies evolve over time.



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