David Mollitor created HIVE-22469: ------------------------------------- Summary: Lower Metastore DB Connection Pool Size in QTests Key: HIVE-22469 URL: https://issues.apache.org/jira/browse/HIVE-22469 Project: Hive Issue Type: Improvement Components: Test, Tests Affects Versions: 3.2.0 Reporter: David Mollitor Assignee: David Mollitor
Hive Metastore uses the 'HikariCP' database connection pool. The default number of connections to the database is 10. For the Qtests, connecting to a local DerbyDB, there need not be more than 1 connection. Anymore simply adds undo overhead and by looking at the QTest logs, I see a bunch of 'connection refused' from HikariCP. It may be the case that the standalone DB does not support that many concurrent connections anyway. https://cwiki.apache.org/confluence/display/Hive/Configuration+Properties#ConfigurationProperties-MetaStore -- This message was sent by Atlassian Jira (v8.3.4#803005)