[HBASE-14448] Refine RegionGroupingProvider Phase-2: remove provider nesting and formalize wal group name

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 1.3.0, 2.0.0
• Hadoop Flags: Reviewed
• Assignee: Yu Li
• Reporter: Yu Li
• Created: 17/Sep/15 06:39
• Updated: 01/Jul/22 21:36
• Resolved: 21/Sep/15 13:45

Description

Now we are nesting DefaultWALProvider inside RegionGroupingProvider, which makes the logic ambiguous since a "provider" itself should provide logs. Suggest to directly instantiate FSHlog in RegionGroupingProvider.

W.r.t wal group name, now in RegionGroupingProvider it's using sth like "<factoryId>-null-<randomUUID>" which is quite long and unnecessary. Suggest to directly use "<providerId>.<groupName>".

For more details, please refer to the initial patch.

Issue Links

• breaks: HBASE-21843 RegionGroupingProvider breaks the meta wal file name pattern which may cause data loss for meta region
• Is contained by: HBASE-14457 Umbrella: Improve Multiple WAL for production usage
• relates to: HBASE-14306 Refine RegionGroupingProvider: fix issues and make it more scalable