[HBASE-15133] Data loss after compaction when a row has more than Integer.MAX_VALUE columns

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 1.2.0, 1.3.0, 0.98.18, 2.0.0
• Component/s: Compaction
• Hadoop Flags: Reviewed
• Assignee: Toshihiro Suzuki
• Reporter: Toshihiro Suzuki
• Created: 20/Jan/16 03:01
• Updated: 17/Feb/16 09:03
• Resolved: 22/Jan/16 10:42

Description

We have lost the data in our development environment when a row has more than Integer.MAX_VALUE columns after compaction.

I think the reason is type of StoreScanner's countPerRow is int.

https://github.com/apache/hbase/blob/master/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/StoreScanner.java#L67

After changing the type to long, it seems to be fixed.