[HBASE-7077] Test for: CheckAndPut should properly read MVCC

• Type: Sub-task
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 0.94.3, 0.95.0
• Assignee: ramkrishna.s.vasudevan
• Reporter: Gregory Chanan
• Created: 31/Oct/12 00:54
• Updated: 26/Feb/13 08:20
• Resolved: 31/Oct/12 22:13

Description

checkAndPut should integrate with MVCC, similar to how HBASE-4583 fixed appends and increments.

Also need a test, here's one we could use (originally proposed in HBASE-7051):
The current value of some cell is 10.
I issue two concurrent requests:
A) a check and put where check value = 10, put value = 11
B) a put where put value = 50
The only result at the end of these operations that seems reasonable to me is the value of the cell being 50. If A occurred first (ACID wise), then our values go 10->11->50. If B occurred first, then our values go 10->50 (and the checkAndPut fails)

Issue Links

• is related to: HBASE-7051 CheckAndPut should properly read MVCC