Vlad Rozov created DRILL-6164:
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Summary: Heap memory leak during parquet scan and OOM
Key: DRILL-6164
URL: https://issues.apache.org/jira/browse/DRILL-6164
Project: Apache Drill
Issue Type: Bug
Reporter: Vlad Rozov
Assignee: Vlad Rozov
During a scan of a large set of parquet files, Drill iterates over the set
initializing parquet readers. Such initialization may require a significant
memory usage (both heap and direct). When scan moves to the next parquet file
in the set, it does not remove reference to the reader from the set it iterates
over and does not remove references created during initialization.
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