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From "stack (JIRA)" <j...@apache.org>
Subject [jira] Created: (HBASE-510) HConnectionManger.listTables returns empty list if exception (though there may be many tables present)
Date Thu, 13 Mar 2008 16:42:24 GMT
HConnectionManger.listTables returns empty list if exception (though there may be many tables
present)
------------------------------------------------------------------------------------------------------

                 Key: HBASE-510
                 URL: https://issues.apache.org/jira/browse/HBASE-510
             Project: Hadoop HBase
          Issue Type: Bug
          Components: client
    Affects Versions: 0.1.0, 0.2.0, 0.16.0
            Reporter: stack
            Priority: Minor


Its a problem because commonly a check for existence will get list of current tables.

Yesterday saw problem when .META. went off line.  A piece of client code was asking for list
of tables when .META. was offline, it was getting back an empty list because listTables do
while was seeing 'org.apache.hadoop.hbase.NotServingRegionException: .META.,,1'

Problem is the do while in HCM.listTables goes as long as startRow does not equal LAST_ROW
but startRow is initialized with EMPTY_START_ROW which is equal to LAST_ROW.





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