Rajesh Balamohan created TEZ-2269:
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Summary: DAGAppMaster becomes unresponsive
Key: TEZ-2269
URL: https://issues.apache.org/jira/browse/TEZ-2269
Project: Apache Tez
Issue Type: Bug
Affects Versions: 0.7.0
Reporter: Rajesh Balamohan
Attachments: app_master_application_1428021179455_0001_jstack.txt
Scenario:
- Run TPCH query20 @ 1 TB scale
- Tez master branch, Hive trunk
- auto-reduce parallelism is not an issue (happens with/without auto-reduce
parallelism)
1 or 2 times in 10 runs, DAGAppMaster would freeze unexpectedly. There is no
pattern observed on which vertex it happens. But when this happens, only option
is to kill the application. I will attach the jstack soon, but that doesn't
seem to reveal much.
Need to debug more; Creating this JIRA for tracking purposes.
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