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Posted to common-dev@hadoop.apache.org by "Daryn Sharp (JIRA)" <ji...@apache.org> on 2013/11/13 22:21:21 UTC

[jira] [Created] (HADOOP-10099) Reduce chance for RPC denial of service

Daryn Sharp created HADOOP-10099:
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             Summary: Reduce chance for RPC denial of service
                 Key: HADOOP-10099
                 URL: https://issues.apache.org/jira/browse/HADOOP-10099
             Project: Hadoop Common
          Issue Type: Improvement
          Components: ipc
    Affects Versions: 2.0.0-alpha, 3.0.0
            Reporter: Daryn Sharp
            Priority: Minor


A RPC server may accept an unlimited number of connections unless indirectly bounded by a blocking operation in the RPC handler threads.  The NN's namespace locking happens to cause this blocking, but other RPC servers such as yarn's generate async events which allow unbridled connection acceptance.



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