Zhihua Deng created HIVE-26794: ---------------------------------- Summary: Explore changing TxnHandler#connPoolMutex to NoPoolConnectionPool Key: HIVE-26794 URL: https://issues.apache.org/jira/browse/HIVE-26794 Project: Hive Issue Type: Improvement Components: Standalone Metastore Reporter: Zhihua Deng
Instead of creating a fixed size connection pool for TxnHandler#MutexAPI, the pool can be assigned to NoPoolConnectionPool due to: * TxnHandler#MutexAPI is primarily designed to provide coarse-grained mutex support to maintenance tasks running inside the Metastore, these tasks are not user faced; * A fixed size connection pool as same as the pool used in ObjectStore is a waste for other non leaders in the warehouse; The NoPoolConnectionPool provides connection on demand, and TxnHandler#MutexAPI only uses getConnection method to fetch a connection from the pool, so it's doable to change the pool to NoPoolConnectionPool, this would make the HMS more scaleable. -- This message was sent by Atlassian Jira (v8.20.10#820010)