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Posted to issues@hbase.apache.org by "stack (JIRA)" <ji...@apache.org> on 2010/09/02 00:16:54 UTC
[jira] Resolved: (HBASE-2857) HBaseAdmin.tableExists() should not
require a full meta scan
[ https://issues.apache.org/jira/browse/HBASE-2857?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
stack resolved HBASE-2857.
--------------------------
Assignee: stack
Resolution: Fixed
Committed attached small patch.
> HBaseAdmin.tableExists() should not require a full meta scan
> ------------------------------------------------------------
>
> Key: HBASE-2857
> URL: https://issues.apache.org/jira/browse/HBASE-2857
> Project: HBase
> Issue Type: Improvement
> Reporter: Jonathan Gray
> Assignee: stack
> Fix For: 0.90.0
>
> Attachments: 2857.txt
>
>
> HBaseAdmin.tableExists() actually makes a call to HBaseAdmin.listTables() and then checks if the table you are looking for is in the list.
> listTables() uses a MetaScanner/MetaVisitor, thus requiring an entire META table scan.
> We should not require a full META scan to check for the existence of a single table.
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