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From "stack (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-6336) Split point should not be equal with start row or end row
Date Thu, 12 Jul 2012 13:54:35 GMT

    [ https://issues.apache.org/jira/browse/HBASE-6336?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13412795#comment-13412795
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stack commented on HBASE-6336:
------------------------------

@Ram Thanks.  So, hbase-6059 added our writing of empty store files it seems.  I remember
that now.  So, if we throw an exception because its empty but higher up we are returning split
point of null -- that the empty region is not splittable -- it doesn't seem like an issue
(its just ugly).

For sure we should commit Chunhui's patch on this issue.

Good stuff lads.
                
> Split point should not be equal with start row or end row
> ---------------------------------------------------------
>
>                 Key: HBASE-6336
>                 URL: https://issues.apache.org/jira/browse/HBASE-6336
>             Project: HBase
>          Issue Type: Bug
>          Components: regionserver
>            Reporter: chunhui shen
>            Assignee: chunhui shen
>             Fix For: 0.96.0
>
>         Attachments: HBASE-6336.patch
>
>
> Should we allow split point equal with region's start row or end row?
> {code}
> // if the midkey is the same as the first and last keys, then we cannot
>         // (ever) split this region.
>         if (this.comparator.compareRows(mk, firstKey) == 0 &&
>             this.comparator.compareRows(mk, lastKey) == 0) {
>           if (LOG.isDebugEnabled()) {
>             LOG.debug("cannot split because midkey is the same as first or " +
>               "last row");
>           }
> {code}
> Here, I think it is a mistake.

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