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From "dhruba borthakur (JIRA)" <j...@apache.org>
Subject [jira] Created: (HADOOP-6713) The RPC server Listener thread is a scalability bottleneck
Date Mon, 19 Apr 2010 05:54:49 GMT
The RPC server Listener thread is a scalability bottleneck
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                 Key: HADOOP-6713
                 URL: https://issues.apache.org/jira/browse/HADOOP-6713
             Project: Hadoop Common
          Issue Type: Improvement
          Components: ipc
    Affects Versions: 0.20.2, 0.20.1, 0.20.0
            Reporter: dhruba borthakur
            Assignee: Dmytro Molkov


The Hadoop RPC Server implementation has a single Listener thread that reads data from the
socket and puts them into a call queue. This means that this single thread can pull RPC requests
off the network only as fast as a single CPU can execute. This is a scalability bottlneck
in our cluster.

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