Dynamic Number of IPC/RPC server handler
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                 Key: HADOOP-1830
                 URL: https://issues.apache.org/jira/browse/HADOOP-1830
             Project: Hadoop
          Issue Type: Improvement
          Components: ipc
    Affects Versions: 0.15.0
            Reporter: Enis Soztutar
             Fix For: 0.15.0


Curently, the IPC server runs a listener and fixed number of handlers for 
processing calls. As part of the discussions in HADOOP-1763, we have raised the 
issue of whether the number of handlers could be made dynamic. 

The proposed way to do this is to configure minimum and maximum number of 
threads, and find an optimum strategy to allocate/deallocate handler threads. 
Any comments on analysis/design/implementation/benchmark are welcome. 

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