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https://issues.apache.org/jira/browse/HDFS-8987?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Zhe Zhang resolved HDFS-8987.
-----------------------------
Resolution: Fixed
> Erasure coding: MapReduce job failed when I set the / folder to the EC zone
> ----------------------------------------------------------------------------
>
> Key: HDFS-8987
> URL: https://issues.apache.org/jira/browse/HDFS-8987
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: HDFS
> Affects Versions: 3.0.0
> Reporter: Lifeng Wang
>
> Test progress is as follows
> * For a new cluster, I format the namenode and then start HDFS service.
> * After HDFS service is started, there is no files in HDFS and set the /
> folder to the EC zone. the EC zone is created successfully.
> * Start the yarn and mr JobHistoryServer services. All the services start
> successfully.
> * Then run hadoop example pi program and it failed.
> The following is the exception.
> {noformat}
> ```
> org.apache.hadoop.ipc.RemoteException(org.apache.hadoop.hdfs.server.namenode.UnsupportedActionException):
> Cannot set replication to a file with striped blocks
> at
> org.apache.hadoop.hdfs.server.namenode.FSDirAttrOp.unprotectedSetReplication(FSDirAttrOp.java:391)
> at
> org.apache.hadoop.hdfs.server.namenode.FSDirAttrOp.setReplication(FSDirAttrOp.java:151)
> at
> org.apache.hadoop.hdfs.server.namenode.FSNamesystem.setReplication(FSNamesystem.java:2231)
> at
> org.apache.hadoop.hdfs.server.namenode.NameNodeRpcServer.setReplication(NameNodeRpcServer.java:682)
> at
> org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolServerSideTranslatorPB.setReplication(ClientNamenodeProtocolServerSideTranslatorPB.java:445)
> at
> org.apache.hadoop.hdfs.protocol.proto.ClientNamenodeProtocolProtos$ClientNamenodeProtocol$2.callBlockingMethod(ClientNamenodeProtocolProtos.java)
> at
> org.apache.hadoop.ipc.ProtobufRpcEngine$Server$ProtoBufRpcInvoker.call(ProtobufRpcEngine.java:636)
> at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:976)
> at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:2171)
> at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:2167)
> at java.security.AccessController.doPrivileged(Native Method)
> at javax.security.auth.Subject.doAs(Subject.java:422)
> at
> org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1666)
> at org.apache.hadoop.ipc.Server$Handler.run(Server.java:2165)
> ```
> {noformat}
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