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Posted to hdfs-dev@hadoop.apache.org by "Lei (Eddy) Xu (JIRA)" <ji...@apache.org> on 2017/12/13 05:44:00 UTC

[jira] [Created] (HDFS-12923) DFS.concat should throw exception if files have different EC policies.

Lei (Eddy) Xu created HDFS-12923:
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             Summary: DFS.concat should throw exception if files have different EC policies. 
                 Key: HDFS-12923
                 URL: https://issues.apache.org/jira/browse/HDFS-12923
             Project: Hadoop HDFS
          Issue Type: Bug
    Affects Versions: 3.0.0
            Reporter: Lei (Eddy) Xu
            Priority: Critical


{{DFS#concat}} appends blocks from different files to a single file. However, if these files have different EC policies, or mixed with replicated and EC files, the resulted file would be problematic to read, because the EC codec is defined in INode instead of in a block. 





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