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Posted to hdfs-dev@hadoop.apache.org by "Kihwal Lee (JIRA)" <ji...@apache.org> on 2012/05/22 15:37:40 UTC

[jira] [Created] (HDFS-3453) HDFS does not use ClientProtocol in a backward-compatible way

Kihwal Lee created HDFS-3453:
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             Summary: HDFS does not use ClientProtocol in a backward-compatible way
                 Key: HDFS-3453
                 URL: https://issues.apache.org/jira/browse/HDFS-3453
             Project: Hadoop HDFS
          Issue Type: Bug
          Components: hdfs client
    Affects Versions: 1.0.0
            Reporter: Kihwal Lee
            Assignee: Kihwal Lee
             Fix For: 1.1.0


HDFS-617 was brought into branch-0.20-security/branch-1 to support non-recursive create, along with HADOOP-6840 and HADOOP-6886. However, the changes in HDFS was done in an incompatible way, making the client unusable against older clusters, even when plain old create() is called. This is because DFS now internally calls create() through the newly introduced method. By simply changing how the methods are wired internally, we can remove this limitation. We may eventually switch back to the approach in HDFS-617 when the majority of users adopt branch-1 based releases.

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