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From "rajeshbabu (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HBASE-7307) MetaReader.tableExists should not return false if the specified table regions has been split
Date Mon, 10 Dec 2012 18:47:22 GMT

     [ https://issues.apache.org/jira/browse/HBASE-7307?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

rajeshbabu updated HBASE-7307:
------------------------------

    Attachment: HBASE-7307_92.patch
                HBASE-7307_94.patch

Patch for 94,92.
                
> MetaReader.tableExists should not return false if the specified table regions has been
split
> --------------------------------------------------------------------------------------------
>
>                 Key: HBASE-7307
>                 URL: https://issues.apache.org/jira/browse/HBASE-7307
>             Project: HBase
>          Issue Type: Bug
>    Affects Versions: 0.92.3, 0.96.0, 0.94.4
>            Reporter: rajeshbabu
>            Assignee: rajeshbabu
>             Fix For: 0.92.2, 0.94.3
>
>         Attachments: HBASE-7307_92.patch, HBASE-7307_94.patch, HBASE-7307_trunk.patch
>
>
> If a region is split parent we are not adding it to META scan results during full scan.

> {code}
>         if (!isInsideTable(this.current, tableNameBytes)) return false;
>         if (this.current.isSplitParent()) return true;
>         // Else call super and add this Result to the collection.
>         super.visit(r);
> {code}
> If all regions of a table has been split then result size will be zero and returning
false.
> {code} 
>     fullScan(catalogTracker, visitor, getTableStartRowForMeta(tableNameBytes));
>     // If visitor has results >= 1 then table exists.
>     return visitor.getResults().size() >= 1;
> {code}
> Even table is present we are returning false which is not correct(its highly possible
in case of tables with one region).

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