Paul Rogers created DRILL-5160:
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Summary: Memory leak in Parquet async reader when Snappy fails
Key: DRILL-5160
URL: https://issues.apache.org/jira/browse/DRILL-5160
Project: Apache Drill
Issue Type: Bug
Affects Versions: 1.9.0
Reporter: Paul Rogers
Assignee: Parth Chandra
See the details in DRILL-5157. The Parquet async reader uses the Snappy
library. If the call into Snappy fails (in my case, due to missing dependency
management in the Drill pom.xml file), the Parquet reader fails (as it should.)
Unfortunately, the Parquet reader leaks memory which cause
{{IllegalStateException}} errors in production, assertion failures in unit
tests.
To reproduce this the easy way (to avoid the need to undo the fix for
DRILL-5157 in Snappy dependencies), use Drill's exception injector in inject an
exception at the line where we call into Snappy (See DRILL-5157 for details.)
Set a breakpoint exception for {{IllegalStateException}} you will see the
memory leak.
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