[YARN-9998] Code cleanup in LeveldbConfigurationStore

• Type: Improvement
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 3.3.0, 3.4.0
• Fix Version/s: 3.3.0, 3.2.2, 3.4.0
• Component/s: resourcemanager
• Target Version/s: 3.4.0
• Hadoop Flags: Reviewed
• Assignee: Benjamin Teke Assign to me
• Reporter: Szilard Nemeth
• Created: 28/Nov/19 12:20
• Updated: 26/Jan/24 06:01
• Resolved: 24/Apr/20 09:16

Description

Many things can be improved:

• Field compactionTimer could be a local variable
• Field versiondb should be camelcase
• initDatabase is a very long method: Initialize db / versionDb should be in separate methods, split this method into smaller chunks
• Remove TODOs
• Remove duplicated code block in LeveldbConfigurationStore.CompactionTimerTask
• Any other cleanup

Issue Links

• is a clone of: YARN-9997 Code cleanup in ZKConfigurationStore
• is cloned by: YARN-10189 Code cleanup in LeveldbRMStateStore