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https://issues.apache.org/jira/browse/TEZ-1323?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14076860#comment-14076860
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Hitesh Shah commented on TEZ-1323:
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Diagnostic is not enough to figure out the actual exception thrown.
> Insufficent diagnostics on console when dag fails due to an exception in a
> task
> --------------------------------------------------------------------------------
>
> Key: TEZ-1323
> URL: https://issues.apache.org/jira/browse/TEZ-1323
> Project: Apache Tez
> Issue Type: Bug
> Reporter: Hitesh Shah
>
> For TEZ-1322, the following diagnostic was generated:
> 14/07/28 13:26:29:157 INFO examples.OrderedWordCount: DAG 1 diagnostics:
> [Vertex failed, vertexName=initialmap,
> vertexId=vertex_1406579076951_0001_1_00, diagnostics=[Task failed,
> taskId=task_1406579076951_0001_1_00_000000, diagnostics=[TaskAttempt 0
> failed, info=[Error: Failure while running task], TaskAttempt 1 failed,
> info=[Error: Failure while running task], TaskAttempt 2 failed, info=[Error:
> Failure while running task], TaskAttempt 3 failed, info=[Error: Failure while
> running task]], Vertex failed as one or more tasks failed. failedTasks:1],
> Vertex killed, vertexName=intermediate_reducer,
> vertexId=vertex_1406579076951_0001_1_01, diagnostics=[Vertex received Kill
> while in RUNNING state., Vertex killed as other vertex failed.
> failedTasks:0], Vertex killed, vertexName=finalreduce,
> vertexId=vertex_1406579076951_0001_1_02, diagnostics=[Vertex received Kill
> while in RUNNING state., Vertex killed as other vertex failed.
> failedTasks:0], DAG failed due to vertex failure. failedVertices:1
> killedVertices:2]
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