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From "Ted Yu (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-4552) multi-CF bulk load is not atomic across column families
Date Mon, 10 Oct 2011 21:46:30 GMT

    [ https://issues.apache.org/jira/browse/HBASE-4552?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13124506#comment-13124506
] 

Ted Yu commented on HBASE-4552:
-------------------------------

One solution is to add the following method to HRegionInterface:
{code}
  public void bulkLoadHFile(List<Pair<byte[], String>> familyPaths, byte[] regionName)
  throws IOException;
{code}
familyPaths is a list of <family, hfilePath> pairs for the same region identified by
regionName.

LoadIncrementalHFiles would need to group HFiles for the same region together before calling
the above method.
                
> multi-CF bulk load is not atomic across column families
> -------------------------------------------------------
>
>                 Key: HBASE-4552
>                 URL: https://issues.apache.org/jira/browse/HBASE-4552
>             Project: HBase
>          Issue Type: Bug
>          Components: regionserver
>    Affects Versions: 0.92.0
>            Reporter: Todd Lipcon
>             Fix For: 0.92.0
>
>
> Currently the bulk load API simply imports one HFile at a time. With multi-column-family
support, this is inappropriate, since different CFs show up separately. Instead, the IPC endpoint
should take a of CF -> HFiles, so we can online them all under a single region-wide lock.

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