Joe McDonnell created IMPALA-12022:
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Summary: Keep metrics about wait times for metastoreDdlLock_
Key: IMPALA-12022
URL: https://issues.apache.org/jira/browse/IMPALA-12022
Project: IMPALA
Issue Type: Improvement
Components: Catalog
Affects Versions: Impala 4.3.0
Reporter: Joe McDonnell
CatalogOpExecutor's metastoreDdlLock_ is used to synchronize operations to
create/drop objects in HMS with the local state of the catalog. If the HMS is
slow for any reason, threads doing create/drop operations will end up blocking
on metastoreDdlLock_. It would be useful to keep track of the time spent
waiting on this lock, as a high value could indicate HMS slowness.
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