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From "Jesse Yates (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HBASE-7725) Add ability to create custom compaction request
Date Wed, 20 Feb 2013 22:45:14 GMT

     [ https://issues.apache.org/jira/browse/HBASE-7725?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Jesse Yates updated HBASE-7725:
-------------------------------

    Description: 
You can request that a compaction be started, but you can't be sure when that compaction request
completes. This is a simple update to the CompactionRequest interface and the compact-split
thread on the RS that doesn't actually impact the RS exposed interface.

This is particularly useful for CPs so they can control starting/running a compaction.

Update - Better description (3/20/13): 
Enable coprocessors to submit custom compaction requests. 

This compaction request is used (if not null) through the entire compaction process. If no
custom compaction request is submitted (its null - the normal case) then we we build a new
compaction request via the usual mechanisms in the Store. 

Adding this mechanism is particularly useful when 'special' compactions are desired and you
want to do things like: only change certain files for a particularly requested compaction
or follow a single compaction through the queue.

  was:
You can request that a compaction be started, but you can't be sure when that compaction request
completes. This is a simple update to the CompactionRequest interface and the compact-split
thread on the RS that doesn't actually impact the RS exposed interface.

This is particularly useful for CPs so they can control starting/running a compaction.

    
> Add ability to create custom compaction request
> -----------------------------------------------
>
>                 Key: HBASE-7725
>                 URL: https://issues.apache.org/jira/browse/HBASE-7725
>             Project: HBase
>          Issue Type: Bug
>          Components: Compaction, Coprocessors, regionserver
>            Reporter: Jesse Yates
>            Assignee: Jesse Yates
>             Fix For: 0.96.0, 0.94.6
>
>         Attachments: example.java, hbase-7725_0.94-v0.patch, hbase-7725-v0.patch, hbase-7725-v1.patch,
hbase-7725-v3.patch, hbase-7725-v4.patch, hbase-7725-v5.patch, hbase-7725-v6.patch, hbase-7725_with-attributes-0.94-v0.patch,
hbase-7725_with-attributes-0.94-v1.patch
>
>
> You can request that a compaction be started, but you can't be sure when that compaction
request completes. This is a simple update to the CompactionRequest interface and the compact-split
thread on the RS that doesn't actually impact the RS exposed interface.
> This is particularly useful for CPs so they can control starting/running a compaction.
> Update - Better description (3/20/13): 
> Enable coprocessors to submit custom compaction requests. 
> This compaction request is used (if not null) through the entire compaction process.
If no custom compaction request is submitted (its null - the normal case) then we we build
a new compaction request via the usual mechanisms in the Store. 
> Adding this mechanism is particularly useful when 'special' compactions are desired and
you want to do things like: only change certain files for a particularly requested compaction
or follow a single compaction through the queue.

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