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From "Hairong Kuang (JIRA)" <j...@apache.org>
Subject [jira] Created: (HDFS-1112) Edit log buffer should not grow unboundedly
Date Tue, 27 Apr 2010 20:34:32 GMT
Edit log buffer should not grow unboundedly
-------------------------------------------

                 Key: HDFS-1112
                 URL: https://issues.apache.org/jira/browse/HDFS-1112
             Project: Hadoop HDFS
          Issue Type: Bug
          Components: name-node
    Affects Versions: 0.22.0
            Reporter: Hairong Kuang
             Fix For: 0.22.0


Currently HDFS does not impose an upper limit on the edit log buffer. In case there are a
large number of open operations coming in with access time update on, since open does not
call sync automatically, there is a possibility that the buffer grow to a large size, therefore
causes memory leak and full GC in extreme cases as described in HDFS-1104. 

The edit log buffer should be automatically flushed when the buffer becomes full.

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