Sourabh Goyal created IMPALA-10817:
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Summary: Share metastoreHmsDDL lock b/w CatalogOpExecutor and
Catalog metastore server
Key: IMPALA-10817
URL: https://issues.apache.org/jira/browse/IMPALA-10817
Project: IMPALA
Issue Type: Improvement
Components: Catalog
Reporter: Sourabh Goyal
Currently, when doing create/drop table/db from catalogD, catalogOpExecutor
(via Impala Shell) and metastore server (via HS2) acquires lock on their own
respective lock objects to prevent concurrent create/drop operations in HMS.
But that does not prevent these concurrent operations across CatalogOpExecutor
and Metastore server. For example currently a user can perform create/drop HMS
operation from Impala shell and catalog metastore server concurrently which is
not the desired behavior
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