[HBASE-24382] Flush partial stores of region filtered by seqId when archive wal due to too many wals

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 3.0.0-alpha-1, 2.4.0
• Fix Version/s: 3.0.0-alpha-1, 2.4.0
• Component/s: wal
• Hadoop Flags: Reviewed
• Release Note: Change the flush level from region to store when there are too many wals, benefit from this we can reduce unnessary flush tasks and small hfiles.
• Assignee: Zheng Wang
• Reporter: Zheng Wang
• Created: 16/May/20 09:44
• Updated: 18/Jul/20 02:05
• Resolved: 26/Jun/20 05:04

Description

When the logRoller archive the oldest wal due to too many wals, if a region should be flushed, we flush all stores of it, but it is not necessary, maybe we can use unflushedSeqId of store to filter them.

Issue Links

• links to: GitHub Pull Request #1737
• links to: GitHub Pull Request #2049