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From "he yongqiang (JIRA)" <j...@apache.org>
Subject [jira] Created: (HADOOP-3701) Too many trash sockets and trash pipes opened
Date Mon, 07 Jul 2008 07:13:31 GMT
Too many trash sockets and trash pipes opened
---------------------------------------------

                 Key: HADOOP-3701
                 URL: https://issues.apache.org/jira/browse/HADOOP-3701
             Project: Hadoop Core
          Issue Type: Bug
          Components: dfs
    Affects Versions: 0.17.0
         Environment: Linux  2.6.18-53.el5PAE #1 SMP Mon Nov 12 02:55:09 EST 2007 i686 i686
i386 GNU/Linux
jdk 1.5.0
            Reporter: he yongqiang


We encounted too many open files exception.
And we found the datanode server daemon has opened too many sockets and pipes. And more surprisingly,most
of the sockets are connects to remote data node's 50010 port and are with state CLOSE_WAIT,such
as 
tcp        1      0 ::ffff:10.61.0.161:33776    ::ffff:10.61.0.162:50010    CLOSE_WAIT  27637/java
         off (0.00/0/0)


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