Kai Zheng created HDFS-7859:
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             Summary: Erasure Coding: Persist EC schemas in NameNode
                 Key: HDFS-7859
                 URL: https://issues.apache.org/jira/browse/HDFS-7859
             Project: Hadoop HDFS
          Issue Type: Sub-task
            Reporter: Kai Zheng
            Assignee: Kai Zheng


In meetup discussion with [~zhz] and [~jingzhao], it's suggested that we 
persist EC schemas in NameNode centrally and reliably, so that EC zones can 
reference them by name efficiently.



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