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From "Sudarshan Kadambi (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HBASE-12071) Separate out thread pool for Master <-> RegionServer communication
Date Tue, 23 Sep 2014 20:50:34 GMT
Sudarshan Kadambi created HBASE-12071:
-----------------------------------------

             Summary: Separate out thread pool for Master <-> RegionServer communication
                 Key: HBASE-12071
                 URL: https://issues.apache.org/jira/browse/HBASE-12071
             Project: HBase
          Issue Type: Bug
            Reporter: Sudarshan Kadambi


Over in HBASE-12028, there is a discussion about the case of a RegionServer still being alive
despite all its handler threads being dead. One outcome of this is that the Master is left
hanging on the RS for completion of various operations - such as region un-assignment when
a table is disabled. Does it make sense to create a separate thread pool for communication
between the Master and the RS? This addresses not just the case of the RPC handler threads
terminating but also long-running queries or co-processor executions holding up master operations.



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