[jira] [Created] (IMPALA-9848) Coordinator unnecessarily invalidating locally cached table metadata

["Sahil Takiar (Jira)" <ji...@apache.org>]

Sahil Takiar created IMPALA-9848:
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             Summary: Coordinator unnecessarily invalidating locally cached table metadata
                 Key: IMPALA-9848
                 URL: https://issues.apache.org/jira/browse/IMPALA-9848
             Project: IMPALA
          Issue Type: Improvement
          Components: Catalog, Frontend
            Reporter: Sahil Takiar


The following fails when run locally on master:
{code:java}
./bin/start-impala-cluster.py --catalogd_args='--catalog_topic_mode=minimal' --impalad_args='--use_local_catalog'
./bin/impala-shell.sh
[localhost:21000] default> select count(l_comment) from tpch.lineitem; <--- THIS WORKS
# kill the catalogd process
[localhost:21000] default> select count(l_comment) from tpch.lineitem; <--- THIS FAILS
ERROR: AnalysisException: Failed to load metadata for table: 'tpch.lineitem'
CAUSED BY: TableLoadingException: Could not load table tpch.lineitem from catalog
CAUSED BY: TException: org.apache.impala.common.InternalException: Couldn't open transport for localhost:26000 (connect() failed: Connection refused)CAUSED BY: InternalException: Couldn't open transport for localhost:26000 (connect() failed: Connection refused {code}
The above experiment works with catalog v1 - e.g. if you remove the startup flags in the {{./bin/start-impala-cluster.py}} everything works.



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