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From "stack (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-11983) HRegion constructors should not create HLog
Date Tue, 16 Sep 2014 03:27:34 GMT

    [ https://issues.apache.org/jira/browse/HBASE-11983?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14134893#comment-14134893

stack commented on HBASE-11983:

Good by me.  +1 putting stake in ground.

> HRegion constructors should not create HLog 
> --------------------------------------------
>                 Key: HBASE-11983
>                 URL: https://issues.apache.org/jira/browse/HBASE-11983
>             Project: HBase
>          Issue Type: Bug
>          Components: wal
>            Reporter: Enis Soztutar
> We should get rid of HRegion creating its own HLog. It should ALWAYS get the log from
> I think this was added for unit tests, but we should refrain from such practice in the
future (adding UT constructors always leads to weird and critical bugs down the road). See
recent: HBASE-11982, HBASE-11654. 
> Get rid of weird things like ignoreHLog:
> {code}
>   /**
>    * @param ignoreHLog - true to skip generate new hlog if it is null, mostly for createTable
>    */
>   public static HRegion createHRegion(final HRegionInfo info, final Path rootDir,
>                                       final Configuration conf,
>                                       final HTableDescriptor hTableDescriptor,
>                                       final HLog hlog,
>                                       final boolean initialize, final boolean ignoreHLog)
> {code}
> We can unify all the createXX and newXX methods and separate creating a region in the
file system vs opening a region. 

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