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https://issues.apache.org/jira/browse/HBASE-2857?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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stack updated HBASE-2857:
-------------------------
Attachment: 2857.txt
Removed the getMaster's before listTable and tableExists. Since hbase-2692,
admin now carries a catalogmanager so use its tableExists instead -- it just
looks for first region in a table and if exists concludes table exists.
> 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
> 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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