Joe McDonnell created IMPALA-6543:
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Summary: Limit RowBatch serialization size to INT_MAX
Key: IMPALA-6543
URL: https://issues.apache.org/jira/browse/IMPALA-6543
Project: IMPALA
Issue Type: Bug
Components: Backend
Affects Versions: Impala 2.11.0, Impala 2.12.0
Reporter: Joe McDonnell
Assignee: Joe McDonnell
A RowBatch does not support serializing an uncompressed size of greater than
INT_MAX. The serialization format relies on tuple offsets of type of int32, so
they cannot address greater than INT_MAX.
On debug builds, a DCHECK in SerializeInternal() fires when the size exceeds
INT_MAX. On release builds, LZ4's limitation of INT_MAX on the size of
uncompressed size avoids any issue. The serialization codepath should protect
itself and avoid this issue on debug builds.
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