Greg Hogan created FLINK-2653:
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Summary: Enable object reuse in MergeIterator
Key: FLINK-2653
URL: https://issues.apache.org/jira/browse/FLINK-2653
Project: Flink
Issue Type: Improvement
Components: Distributed Runtime
Affects Versions: master
Reporter: Greg Hogan
MergeIterator currently discards given reusable objects and simply returns a
new object from the JVM heap. This inefficiency has a noticeable impact on
garbage collection and runtime overhead (~5% overall performance by my measure).
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