[TEZ-2307] Possible wrong error message when submitting new dag

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 0.7.1, 0.8.3
• Target Version/s: 0.7.1
• Assignee: Jeff Zhang
• Reporter: Jeff Zhang
• Created: 10/Apr/15 10:35
• Updated: 18/May/16 04:55
• Resolved: 02/Feb/16 11:02

Description

In the following 2 cases, AM would propagate wrong error message to client ("App master already running a DAG")

• The last dag is completed but AM is still in RUNNING state
• AM is in shutting down.

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)

Issue Links

• is related to: TEZ-1273 Refactor DAGAppMaster to state machine based