[HBASE-26526] Introduce a timeout to shutdown of WAL

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 3.0.0-alpha-1, 2.0.0
• Fix Version/s: 3.0.0-alpha-2, 2.6.0, 2.4.17, 2.5.4
• Component/s: wal
• Assignee: Xiaolin Ha
• Reporter: Xiaolin Ha
• Created: 01/Dec/21 09:00
• Updated: 25/Mar/23 05:34
• Resolved: 24/Mar/23 09:31

Description

When the regionserver is aborted(server.isAborted() is true), it will just reject the newly coming requests, so it is important to keep a short time to stop to make a short MTTR. 

When the WAL is shutting down, we can wait some time to flush the unacked appends, but if that is a long time, I think we can just abort without flushing them. 

By introducing a timeout for WAL shutdown, we can control the shutdown time, especially for those sensitive businesses.

Issue Links

• links to: GitHub Pull Request #3297
• links to: GitHub Pull Request #3297