[HBASE-5033] Opening/Closing store in parallel to reduce region open/close time

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 0.94.0

Release Note

"hbase.hstore.open.and.close.threads.max" is introduced to control the number of threads for opening/closing Store and store files.

• Assignee: Liyin Tang
• Reporter: Liyin Tang
• Created: 14/Dec/11 23:38
• Updated: 12/Oct/12 05:34
• Resolved: 13/Jan/12 23:32

Description

Region servers are opening/closing each store and each store file for every store in sequential fashion, which may cause inefficiency to open/close regions.

So this diff is to open/close each store in parallel in order to reduce region open/close time. Also it would help to reduce the cluster restart time.

1) Opening each store in parallel
2) Loading each store file for every store in parallel
3) Closing each store in parallel
4) Closing each store file for every store in parallel.