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Posted to dev@hbase.apache.org by "Enis Soztutar (JIRA)" <ji...@apache.org> on 2014/09/20 02:21:33 UTC

[jira] [Created] (HBASE-12035) Client does an RPC to master everytime a region is relocated

Enis Soztutar created HBASE-12035:
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             Summary: Client does an RPC to master everytime a region is relocated
                 Key: HBASE-12035
                 URL: https://issues.apache.org/jira/browse/HBASE-12035
             Project: HBase
          Issue Type: Improvement
            Reporter: Enis Soztutar
             Fix For: 2.0.0


HBASE-7767 moved table enabled|disabled state to be kept in hdfs instead of zookeeper. isTableDisabled() which is used in HConnectionImplementation.relocateRegion() now became a master RPC call rather than a zookeeper client call. Since we do relocateRegion() calls everytime we want to relocate a region (region moved, RS down, etc) this implies that when the master is down, the some of the clients for uncached regions will be affected. 

See HBASE-7767 and HBASE-11974 for some more background. 



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