Andrew Sherman created IMPALA-12805:
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Summary: Avoid problems of HIVE-27114 without configuration changes
Key: IMPALA-12805
URL: https://issues.apache.org/jira/browse/IMPALA-12805
Project: IMPALA
Issue Type: Bug
Components: Catalog
Affects Versions: Impala 4.4.0
Reporter: Andrew Sherman
Assignee: Andrew Sherman
HIVE-27114 adds a new
property,"hive.metastore.partitions.parameters.exclude.pattern", which defaults
to "impala_intermediate_stats_chunk%". This default excludes the Impala
incremental stats from the results returned from the HMS client. I think this
was done to help Hive performance. It means however that Impala cannot
retrieve its own partition stats, which will negatively impact the performance
of many workloads.
One fix for this was IMPALA-12743 which sets a non-empty non-default value for
the new Hive property in the development environment’s hive-site.xml file. In
some customer situations this would require a configuration change that cannot
be deployed simultaneously with the possible HMS upgrade which introduces the
regression.
This change sets a non-empty non-default value for the new Hive property in the
configurations in the MetaStoreClientPool. This avoids the regression. The
natural thing would be to set an empty string as the value, but th
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