Jesus Camacho Rodriguez created HIVE-24176:
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Summary: Create query-level cache for HMS requests and extend
existing local HS2 HMS cache
Key: HIVE-24176
URL: https://issues.apache.org/jira/browse/HIVE-24176
Project: Hive
Issue Type: Improvement
Components: HiveServer2
Reporter: Jesus Camacho Rodriguez
Assignee: Jesus Camacho Rodriguez
This issue creates a query-level cache for HMS requests. The lifecycle of that
cache is associated to the lifecycle of the query. This basically means that
each unique request to certain HMS APIs should only be served once from HMS,
while follow-up repetitive calls will be retrieved from cache. The initial
implementation includes caching for 19 APIs.
This issue also extends existing local HS2 HMS cache implementation introduced
in HIVE-23949 to support other requests (getTableColumnStatistics,
getPartitionsByNames). In fact, implementation relies on some of the logic
introduced in that JIRA since there are some commonalities.
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