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Posted to hdfs-issues@hadoop.apache.org by "Andrew Wang (JIRA)" <ji...@apache.org> on 2017/01/11 02:19:58 UTC

[jira] [Created] (HDFS-11314) Validate client-provided EC schema on the NameNode

Andrew Wang created HDFS-11314:
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             Summary: Validate client-provided EC schema on the NameNode
                 Key: HDFS-11314
                 URL: https://issues.apache.org/jira/browse/HDFS-11314
             Project: Hadoop HDFS
          Issue Type: Sub-task
          Components: erasure-coding
    Affects Versions: 3.0.0-alpha1
            Reporter: Andrew Wang


Filing based on discussion in HDFS-8095. A user might specify a policy that is not appropriate for the cluster, e.g. a RS (10,4) policy when the cluster only has 10 nodes. The NN should only allow the client to choose from a pre-approved list determined by the cluster administrator.



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