[HDFS-12919] RBF: Support erasure coding methods in RouterRpcServer

• Type: Sub-task
• Status: Resolved
• Priority: Critical
• Resolution: Fixed
• Affects Version/s: 3.0.0
• Fix Version/s: 3.1.0, 3.0.1
• Labels: RBF
• Hadoop Flags: Reviewed
• Assignee: Íñigo Goiri
• Reporter: Íñigo Goiri
• Created: 12/Dec/17 22:42
• Updated: 19/Dec/18 07:10
• Resolved: 15/Jan/18 20:22

Description

MAPREDUCE-6954 started to tune the erasure coding settings for staging files. However, the Router does not support this operation and throws:

17/12/12 14:36:07 INFO mapreduce.JobSubmitter: Cleaning up the staging area /tmp/hadoop-yarn/staging/hadoop/.staging/job_1513116010218_0002
org.apache.hadoop.ipc.RemoteException(java.lang.UnsupportedOperationException): Operation "setErasureCodingPolicy" is not supported
        at org.apache.hadoop.hdfs.server.federation.router.RouterRpcServer.checkOperation(RouterRpcServer.java:368)
        at org.apache.hadoop.hdfs.server.federation.router.RouterRpcServer.setErasureCodingPolicy(RouterRpcServer.java:1805)

Issue Links

• breaks: HDFS-14156 RBF: rollEdit() command fails with Router
• is related to: HDFS-8833 Erasure coding: store EC schema and cell size in INodeFile and eliminate notion of EC zones
• is related to: MAPREDUCE-6954 Disable erasure coding for files that are uploaded to the MR staging area