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From "Haohui Mai (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HDFS-6480) Move waitForReady() from FSDirectory to FSNamesystem
Date Tue, 03 Jun 2014 00:47:02 GMT
Haohui Mai created HDFS-6480:
--------------------------------

             Summary: Move waitForReady() from FSDirectory to FSNamesystem
                 Key: HDFS-6480
                 URL: https://issues.apache.org/jira/browse/HDFS-6480
             Project: Hadoop HDFS
          Issue Type: Sub-task
            Reporter: Haohui Mai
            Assignee: Haohui Mai
         Attachments: HDFS-6480.000.patch

Currently FSDirectory implements a barrier in {{waitForReady()}} / {{setReady()}} so that
it only serve requests once the FSImage is fully loaded.

As a part of the effort to evolve {{FSDirectory}} to a class which focuses on implementing
the data structure of the namespace, this jira proposes to move the barrier one level higher
to {{FSNamesystem}}.



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