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From "Heng Chen (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-14227) Fold special cased MOB APIs into existing APIs
Date Tue, 18 Aug 2015 10:27:46 GMT

    [ https://issues.apache.org/jira/browse/HBASE-14227?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14701052#comment-14701052
] 

Heng Chen commented on HBASE-14227:
-----------------------------------

{quote}
Compacting the store files with ref cells and mob files are different. But they share the
same CF. We want to separate the compactions, and we have to separate these operations in
methods. If only with CF, we only know the cf is a mob-enable cf, but we don't know what kind
of compaction is needed.
{quote}

I see...  I agree with you.  we can use special name to notify us do MOB compaction.

> Fold special cased MOB APIs into existing APIs
> ----------------------------------------------
>
>                 Key: HBASE-14227
>                 URL: https://issues.apache.org/jira/browse/HBASE-14227
>             Project: HBase
>          Issue Type: Task
>          Components: mob
>    Affects Versions: 2.0.0
>            Reporter: Andrew Purtell
>            Priority: Blocker
>             Fix For: 2.0.0
>
>
> There are a number of APIs that came in with MOB that are not new actions for HBase,
simply new actions for a MOB implementation:
> - compactMob
> - compactMobs
> - majorCompactMob
> - majorCompactMobs
> - getMobCompactionState
> And in HBaseAdmin:
> - validateMobColumnFamily
> Remove these special cases from the Admin API where possible by folding them into existing
APIs.
> We definitely don't need one method for a singleton and another for collections.
> Ideally we will not have any APIs named *Mob when finished, whether MOBs are in use on
a table or not should be largely an internal detail. Exposing as schema option would be fine,
this conforms to existing practice for other features.
> Marking critical because I think removing the *Mob special cased APIs should be a precondition
for release of this feature either in 2.0 or as a backport.



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