[HIVE-19251] ObjectStore.getNextNotification with LIMIT should use less memory

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 2.4.0, 3.0.0
• Component/s: repl, Standalone Metastore
• Target Version/s: 3.0.0
• Hadoop Flags: Reviewed
• Assignee: Daniel Dai
• Reporter: Daniel Dai
• Created: 19/Apr/18 21:52
• Updated: 28/Jul/18 20:39
• Resolved: 28/Jul/18 20:39

Description

Experience OOM when Hive metastore try to retrieve huge amount of notification logs even there's limit clause. Hive shall only retrieve necessary rows.

Issue Links

• Dependency: HIVE-20226 HMS getNextNotification will throw exception when request maxEvents exceed table's max_rows