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From "Juan Yu (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HDFS-7570) DataXceiver could leak FileDescriptor
Date Wed, 24 Dec 2014 20:29:13 GMT
Juan Yu created HDFS-7570:
-----------------------------

             Summary: DataXceiver could leak FileDescriptor
                 Key: HDFS-7570
                 URL: https://issues.apache.org/jira/browse/HDFS-7570
             Project: Hadoop HDFS
          Issue Type: Bug
            Reporter: Juan Yu


DataXceiver doesn't close inputstream all the time, There could be FD leakage and overtime
cause FDs exceed limit.

{code}
finally {
      if (LOG.isDebugEnabled()) {
        LOG.debug(datanode.getDisplayName() + ":Number of active connections is: "
            + datanode.getXceiverCount());
      }
      updateCurrentThreadName("Cleaning up");
      if (peer != null) {
        dataXceiverServer.closePeer(peer);
        IOUtils.closeStream(in);
      }
    }
{code}



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