David C Navas created SPARK-27728:
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Summary: Address thread-safety of InMemoryStore and
ElementTrackingStores.
Key: SPARK-27728
URL: https://issues.apache.org/jira/browse/SPARK-27728
Project: Spark
Issue Type: Sub-task
Components: Spark Core
Affects Versions: 2.3.3
Reporter: David C Navas
There are a couple of thread-safety issues we discovered in trying to track
down excessive memory use. These are detailed in the attachment. One is a
problem that looks like it might be a race condition in the ordering of
updating elements in the tracking store, and the other is an incorrect (and
likely unnecessary) caching of the size of an underlying data-structure.
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