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Posted to issues@tez.apache.org by "Jeff Zhang (JIRA)" <ji...@apache.org> on 2015/04/10 12:36:12 UTC

[jira] [Created] (TEZ-2307) DAGAppMaster may still be in RUNNING when DAG is finished

Jeff Zhang created TEZ-2307:
-------------------------------

             Summary: DAGAppMaster may still be in RUNNING when DAG is finished
                 Key: TEZ-2307
                 URL: https://issues.apache.org/jira/browse/TEZ-2307
             Project: Apache Tez
          Issue Type: Bug
            Reporter: Jeff Zhang


It is possible that DAG is finished while DAGAppMaster is still in RUNNING, in this case the next submission of dag will the following error:
{code}
2015-04-10 06:01:50,369 INFO  [IPC Server handler 0 on 46821] ipc.Server (Server.java:run(2070)) - IPC Server handler 0 on 46821, call org.apache.tez.dag.api.client.rpc.DAGClientAMProtocolBlockingPB.submitDAG from 10.0.0.223:48581 Call#411 Retry#0
org.apache.tez.dag.api.TezException: App master already running a DAG
	at org.apache.tez.dag.app.DAGAppMaster.submitDAGToAppMaster(DAGAppMaster.java:1131)
	at org.apache.tez.dag.api.client.DAGClientHandler.submitDAG(DAGClientHandler.java:118)
	at org.apache.tez.dag.api.client.rpc.DAGClientAMProtocolBlockingPBServerImpl.submitDAG(DAGClientAMProtocolBlockingPBServerImpl.java:163)
	at org.apache.tez.dag.api.client.rpc.DAGClientAMProtocolRPC$DAGClientAMProtocol$2.callBlockingMethod(DAGClientAMProtocolRPC.java:7471)
	at org.apache.hadoop.ipc.ProtobufRpcEngine$Server$ProtoBufRpcInvoker.call(ProtobufRpcEngine.java:616)
	at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:969)
	at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:2049)
	at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:2045)
	at java.security.AccessController.doPrivileged(Native Method)
	at javax.security.auth.Subject.doAs(Subject.java:415)
	at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1657)
	at org.apache.hadoop.ipc.Server$Handler.run(Server.java:2043)
{code}



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