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From "Jing Zhao (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HADOOP-8831) FSEditLog preallocate() needs to reset the position of PREALLOCATE_BUFFER when more than 1MB size is needed
Date Thu, 20 Sep 2012 18:28:07 GMT
Jing Zhao created HADOOP-8831:
---------------------------------

             Summary: FSEditLog preallocate() needs to reset the position of PREALLOCATE_BUFFER
when more than 1MB size is needed
                 Key: HADOOP-8831
                 URL: https://issues.apache.org/jira/browse/HADOOP-8831
             Project: Hadoop Common
          Issue Type: Bug
    Affects Versions: 1.2.0
            Reporter: Jing Zhao
            Priority: Critical


In the new preallocate() function, when the required size is larger 1MB, we need to reset
the position for PREALLOCATION_BUFFER every time when we have allocated 1MB. Otherwise seems
only 1MB can be allocated even if need is larger than 1MB.

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