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From "hyoungjunkim (JIRA)" <j...@apache.org>
Subject [jira] [Created] (TAJO-467) Too many open FD when master failed.
Date Mon, 30 Dec 2013 01:33:51 GMT
hyoungjunkim created TAJO-467:
---------------------------------

             Summary: Too many open FD when master failed.
                 Key: TAJO-467
                 URL: https://issues.apache.org/jira/browse/TAJO-467
             Project: Tajo
          Issue Type: Bug
            Reporter: hyoungjunkim


When Tajo Master failed and Worker still alive, too many open FD in worker's host.
I checked with losf command. Showed the following list.
{code}
lsof -l | grep <pid> | grep wc -l
2568

lsof -l | grep <pid>
java      92845      501  110     PIPE 0xd63c81fc1ed6001b       16384          ->0xd63c81fc0aac406b
java      92845      501  111     PIPE 0xd63c81fc0aac406b       16384          ->0xd63c81fc1ed6001b
java      92845      501  112u  KQUEUE                                         count=0, state=0x2
java      92845      501  113     PIPE 0xd63c81fc0d1441cb       16384          ->0xd63c81fc1ed6059b
java      92845      501  114     PIPE 0xd63c81fc1ed6059b       16384          ->0xd63c81fc0d1441cb
java      92845      501  115u  KQUEUE                                         count=0, state=0x2
java      92845      501  116     PIPE 0xd63c81fc1edb140b       16384          ->0xd63c81fc1ed61cfb
java      92845      501  117     PIPE 0xd63c81fc1ed61cfb       16384          ->0xd63c81fc1edb140b
java      92845      501  118u  KQUEUE                                         count=0, state=0x2
java      92845      501  119     PIPE 0xd63c81fc1eba61fb       16384          ->0xd63c81fc1eba727b
java      92845      501  120     PIPE 0xd63c81fc1eba727b       16384          ->0xd63c81fc1eba61fb
java      92845      501  121u  KQUEUE                                         count=0, state=0x2
java      92845      501  122     PIPE 0xd63c81fc163b474b       16384          ->0xd63c81fc1ed61a3b
java      92845      501  123     PIPE 0xd63c81fc1ed61a3b       16384          ->0xd63c81fc163b474b
java      92845      501  124u  KQUEUE                                         count=0, state=0x2
java      92845      501  125     PIPE 0xd63c81fc1ed68e3b       16384          ->0xd63c81fc1d530bfb
java      92845      501  126     PIPE 0xd63c81fc1d530bfb       16384          ->0xd63c81fc1ed68e3b
java      92845      501  127u  KQUEUE                                         count=0, state=0x2
java      92845      501  128     PIPE 0xd63c81fc1d4848ab       16384          ->0xd63c81fc0aac1b4b
java      92845      501  129     PIPE 0xd63c81fc0aac1b4b       16384          ->0xd63c81fc1d4848ab
java      92845      501  130u  KQUEUE                                         count=0, state=0x2
java      92845      501  131     PIPE 0xd63c81fc1fe3d74b       16384          ->0xd63c81fc0aac125b
java      92845      501  132     PIPE 0xd63c81fc0aac125b       16384          ->0xd63c81fc1fe3d74b
java      92845      501  133u  KQUEUE                                         count=0, state=0x2
...
{code}



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