[jira] [Comment Edited] (HBASE-7725) Add ability to create custom compaction request

["Jesse Yates (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HBASE-7725?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13582732#comment-13582732 ] 

Jesse Yates edited comment on HBASE-7725 at 2/21/13 12:42 AM:
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They don't wrap naturally - the method name should all be the same line.
                
      was (Author: jesse_yates):
    They don't wrap naturally - the method decl. should all be the same line.
                  
> 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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