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https://issues.apache.org/jira/browse/TEZ-2568?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14594254#comment-14594254
]
Jeff Zhang commented on TEZ-2568:
---------------------------------
VertexImpl#setParallelism
{code}
LOG.info("Vertex " + getLogIdentifier() +
" parallelism set to " + parallelism);
if (canInitVertex()) {
getEventHandler().handle(new VertexEvent(getVertexId(),
VertexEventType.V_READY_TO_INIT));
}
{code}
> V_INPUT_DATA_INFORMATION may happen after vertex is initialized
> ---------------------------------------------------------------
>
> Key: TEZ-2568
> URL: https://issues.apache.org/jira/browse/TEZ-2568
> Project: Apache Tez
> Issue Type: Bug
> Reporter: Jeff Zhang
> Assignee: Jeff Zhang
> Attachments: a.log
>
>
> {code}
> 2015-06-19 15:57:28,462 ERROR [Dispatcher thread: Central] impl.VertexImpl:
> Can't handle Invalid event V_INPUT_DATA_INFORMATION on vertex Map 2 with
> vertexId vertex_1434754502979_0002_2_00 at current state INITED
> org.apache.hadoop.yarn.state.InvalidStateTransitonException: Invalid event:
> V_INPUT_DATA_INFORMATION at INITED
> at
> org.apache.hadoop.yarn.state.StateMachineFactory.doTransition(StateMachineFactory.java:305)
> at
> org.apache.hadoop.yarn.state.StateMachineFactory.access$300(StateMachineFactory.java:46)
> at
> org.apache.hadoop.yarn.state.StateMachineFactory$InternalStateMachine.doTransition(StateMachineFactory.java:448)
> at
> org.apache.tez.state.StateMachineTez.doTransition(StateMachineTez.java:57)
> at
> org.apache.tez.dag.app.dag.impl.VertexImpl.handle(VertexImpl.java:1799)
> at
> org.apache.tez.dag.app.dag.impl.VertexImpl.handle(VertexImpl.java:198)
> at
> org.apache.tez.dag.app.DAGAppMaster$VertexEventDispatcher.handle(DAGAppMaster.java:1963)
> at
> org.apache.tez.dag.app.DAGAppMaster$VertexEventDispatcher.handle(DAGAppMaster.java:1949)
> at
> org.apache.tez.common.AsyncDispatcher.dispatch(AsyncDispatcher.java:183)
> at
> org.apache.tez.common.AsyncDispatcher$1.run(AsyncDispatcher.java:114)
> at java.lang.Thread.run(Thread.java:722)
> {code}
> VM now run in a separate thread, and V_INPUT_DATA_INFORMATION is sent by VM,
> so it may happen after vertex is initialized. We can't wait for all the
> V_INPUT_DATA_INFORMATION events available in INITIALIZING state, because it
> is not know how many V_INPUT_DATA_INFORMATION we may receive, it is
> determined by VM. So will allow V_INPUT_DATA_INFORMATION happens when vertex
> is initialized.
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