zengxl created HIVE-29378:
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Summary: When there are a large number of tables, the "getTables"
operation is very slow.
Key: HIVE-29378
URL: https://issues.apache.org/jira/browse/HIVE-29378
Project: Hive
Issue Type: Bug
Affects Versions: 4.2.0
Reporter: zengxl
Attachments: image-2025-12-18-10-59-31-927.png
After introducing HIVE-24769, when executing the "show tables" command and
there are thousands or even tens of thousands of tables in a single database,
each table needs to return a complete Table object. This object is processed by
the getTableObjectsByName method in the ObjectStore and converted to a Table.
Each table takes 5 to 10 milliseconds to complete. With a large number of
tables, the process becomes very slow.
!image-2025-12-18-10-59-31-927.png!
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