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Posted to hdfs-dev@hadoop.apache.org by "Andrew Wang (JIRA)" <ji...@apache.org> on 2016/09/27 22:28:21 UTC

[jira] [Created] (HDFS-10916) Switch from "raw" to "system" namespace for erasure coding policy

Andrew Wang created HDFS-10916:
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             Summary: Switch from "raw" to "system" namespace for erasure coding policy
                 Key: HDFS-10916
                 URL: https://issues.apache.org/jira/browse/HDFS-10916
             Project: Hadoop HDFS
          Issue Type: Sub-task
          Components: erasure-coding
    Affects Versions: 3.0.0-alpha1
            Reporter: Andrew Wang
            Assignee: Andrew Wang


Currently EC policy is stored as in the raw xattr namespace. It would be better to store this in "system" like storage policy.

Raw is meant for attributes which need to be preserved across a distcp, like encryption info. EC policy is more similar to replication factor or storage policy, which can differ between the src and target of a distcp. 



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