Jonathan Eagles created TEZ-3831:
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Summary: Reduce Unordered memory needed for storing empty
completed events
Key: TEZ-3831
URL: https://issues.apache.org/jira/browse/TEZ-3831
Project: Apache Tez
Issue Type: Bug
Reporter: Jonathan Eagles
Assignee: Jonathan Eagles
the completedInputs blocking queue is used to store inputs for the
UnorderedKVReader to consume. With Auto-reduce parallelism enabled and nearly
all empty inputs, the reader can't prune the empty events from the blocking
queue fast enough to keep up. In my scenario, an OOM occurred.
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