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Posted to common-dev@hadoop.apache.org by "dhruba borthakur (JIRA)" <ji...@apache.org> on 2010/04/19 07:54:50 UTC

[jira] Created: (HADOOP-6713) The RPC server Listener thread is a scalability bottleneck

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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