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From "Colin Patrick McCabe (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HADOOP-9676) make maximum RPC buffer size configurable
Date Fri, 28 Jun 2013 20:45:20 GMT
Colin Patrick McCabe created HADOOP-9676:

             Summary: make maximum RPC buffer size configurable
                 Key: HADOOP-9676
                 URL: https://issues.apache.org/jira/browse/HADOOP-9676
             Project: Hadoop Common
          Issue Type: Improvement
            Reporter: Colin Patrick McCabe
            Assignee: Colin Patrick McCabe
            Priority: Minor

Currently the RPC server just allocates however much memory the client asks for, without validating.
 It would be nice to make the maximum RPC buffer size configurable.  This would prevent a
rogue client from bringing down the NameNode (or other Hadoop daemon) with a few requests
for 2 GB buffers.  It would also make it easier to debug issues with super-large RPCs or malformed
headers, since OOMs can be difficult for developers to reproduce.

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