dragon created HDFS-10012:
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Summary: CLONE - Erasure Coding: Add RPC to client-namenode to
list all ECSchemas loaded in Namenode.
Key: HDFS-10012
URL: https://issues.apache.org/jira/browse/HDFS-10012
Project: Hadoop HDFS
Issue Type: Sub-task
Reporter: dragon
Assignee: Vinayakumar B
Fix For: HDFS-7285
ECSchemas will be configured and loaded only at the Namenode to avoid conflicts.
Client has to specify one of these schemas during creation of ecZones.
So, add an RPC to ClientProtocol to get all ECSchemas loaded at namenode, so
that client can choose only any one of these.
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