[HDDS-2476] Share more code between metadata and data scanners

• Type: Sub-task
• Status: Resolved
• Priority: Major
• Resolution: Implemented
• Fix Version/s: 1.3.0
• Component/s: Ozone Datanode
• Labels: pull-request-available
• Target Version/s: 1.3.0
• Assignee: Szabolcs Gál
• Reporter: Attila Doroszlai
• Created: 13/Nov/19 23:07
• Updated: 08/Sep/22 18:50
• Resolved: 08/Sep/22 18:50

Description

There are several duplicated / similar pieces of code in metadata and data scanners. More code should be reused.

Examples:

1. ContainerDataScrubberMetrics and ContainerMetadataScrubberMetrics have 3 common metrics
2. lifecycle of ContainerMetadataScanner and ContainerDataScanner (main loop, iteration, metrics processing, shutdown)

Issue Links

• links to: GitHub Pull Request #3727