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From "Sergey Shelukhin (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-7236) add per-table/per-cf compaction configuration via metadata
Date Wed, 28 Nov 2012 23:56:02 GMT

    [ https://issues.apache.org/jira/browse/HBASE-7236?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13506060#comment-13506060
] 

Sergey Shelukhin commented on HBASE-7236:
-----------------------------------------

Details: 
We want to do it in metadata as it makes logical sense; xml config usage would split table/CF
configuration into two places. 
Given that the config for both current and tiered policy can be quite long, it probably makes
sense to make it nested, as opposed to a set of flat values inside metadata. 
I immediately start thinking of generic xml config override mechanism for tables/cfs, but
I am not sure this is necessary.

What do you think?
                
> add per-table/per-cf compaction configuration via metadata
> ----------------------------------------------------------
>
>                 Key: HBASE-7236
>                 URL: https://issues.apache.org/jira/browse/HBASE-7236
>             Project: HBase
>          Issue Type: New Feature
>          Components: Compaction
>    Affects Versions: 0.96.0
>            Reporter: Sergey Shelukhin
>            Assignee: Sergey Shelukhin
>
> Regardless of the compaction policy, it makes sense to have separate configuration for
compactions for different tables and column families, as their access patterns and workloads
can be different. In particular, for tiered compactions that are being ported from 0.89-fb
branch it is necessary to have, to use it properly.
> We might want to add support for compaction configuration via metadata on table/cf.

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