Todd Lipcon created IMPALA-7536:
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Summary: Re-evaluate Avro/Kudu/HBase table performance with
fetch-from-catalogd
Key: IMPALA-7536
URL: https://issues.apache.org/jira/browse/IMPALA-7536
Project: IMPALA
Issue Type: Sub-task
Reporter: Todd Lipcon
The Avro, Kudu,and HBase table support for LocalCatalog was written with
"fetch-from-source" in mind. Thus, they spend considerable effort to determine
the schema on the impalad side when the table is loaded. In "fetch from
catalogd" mode, the catalogd has already done this schema resolution, and we're
likely better off not doing the extra work on the impalad. We should do a pass
back over those table types to make sure there isn't unnecessary work being
performed.
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