Jason Lowe created TEZ-3114:
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Summary: Shuffle OOM due to EventMetaData flood
Key: TEZ-3114
URL: https://issues.apache.org/jira/browse/TEZ-3114
Project: Apache Tez
Issue Type: Bug
Affects Versions: 0.7.0
Reporter: Jason Lowe
A task encountered an OOM during shuffle, and investigation of the heap dump
showed a lot of memory being consumed by almost 3.5 million EventMetaData
objects. Auto-parallelism had reduced the number of tasks in the vertex to 1
and there were 2000 upstream tasks to shuffle.
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