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From "Zhihong Yu (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-5009) Failure of creating split dir if it already exists prevents splits from happening further
Date Wed, 21 Dec 2011 15:17:30 GMT

    [ https://issues.apache.org/jira/browse/HBASE-5009?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13174135#comment-13174135
] 

Zhihong Yu commented on HBASE-5009:
-----------------------------------

+1 on patch if tests pass.

Thanks for your work Ramkrishna.
                
> Failure of creating split dir if it already exists prevents splits from happening further
> -----------------------------------------------------------------------------------------
>
>                 Key: HBASE-5009
>                 URL: https://issues.apache.org/jira/browse/HBASE-5009
>             Project: HBase
>          Issue Type: Bug
>    Affects Versions: 0.90.6
>            Reporter: ramkrishna.s.vasudevan
>            Assignee: ramkrishna.s.vasudevan
>         Attachments: HBASE-5009.patch, HBASE-5009_Branch90.patch
>
>
> The scenario is
> -> The split of a region takes a long time
> -> The deletion of the splitDir fails due to HDFS problems.
> -> Subsequent splits also fail after that.
> {code}
> private static void createSplitDir(final FileSystem fs, final Path splitdir)
>   throws IOException {
>     if (fs.exists(splitdir)) throw new IOException("Splitdir already exits? " + splitdir);
>     if (!fs.mkdirs(splitdir)) throw new IOException("Failed create of " + splitdir);
>   }
> {code}
> Correct me if am wrong? If it is an issue can we change the behaviour of throwing exception?
> Pls suggest.

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