Lantao Jin created SPARK-32118: ---------------------------------- Summary: Use fine-grained read write lock for each database in HiveExternalCatalog Key: SPARK-32118 URL: https://issues.apache.org/jira/browse/SPARK-32118 Project: Spark Issue Type: Improvement Components: SQL Affects Versions: 3.0.0, 3.1.0 Reporter: Lantao Jin
In HiveExternalCatalog, all metastore operations are synchronized by a same object lock. In a heavy traffic Spark thriftserver or Spark Driver, users's queries may be stuck by any a long operation. For example, if a user is accessing a table which contains mass partitions, the operation loadDynamicPartitions() holds the object lock for a long time. All queries are blocking to wait for the lock. -- This message was sent by Atlassian Jira (v8.3.4#803005) --------------------------------------------------------------------- To unsubscribe, e-mail: issues-unsubscr...@spark.apache.org For additional commands, e-mail: issues-h...@spark.apache.org