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From "Jing Zhao (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HDFS-4857) Snapshot.Root and AbstractINodeDiff#snapshotINode should not be put into INodeMap when loading FSImage
Date Tue, 28 May 2013 02:51:20 GMT
Jing Zhao created HDFS-4857:
-------------------------------

             Summary: Snapshot.Root and AbstractINodeDiff#snapshotINode should not be put
into INodeMap when loading FSImage
                 Key: HDFS-4857
                 URL: https://issues.apache.org/jira/browse/HDFS-4857
             Project: Hadoop HDFS
          Issue Type: Bug
            Reporter: Jing Zhao
            Assignee: Jing Zhao


Snapshot.Root, though is a subclass of INodeDirectory, is only used to indicate the root of
a snapshot. In the meanwhile, AbstractINodeDiff#snapshotINode is used as copies recording
the original state of an INode. Thus we should not put them into INodeMap. 

Currently when loading FSImage we did not check the type of inode and wrongly put these two
types of nodes into INodeMap. This may replace the nodes that should stay in INodeMap.

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