[HBASE-9931] Optional setBatch for CopyTable to copy large rows in batches

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 0.98.0, 0.96.1, 0.94.15
• Component/s: mapreduce
• Hadoop Flags: Reviewed
• Assignee: Nick Dimiduk
• Reporter: Dave Latham
• Created: 09/Nov/13 00:24
• Updated: 16/Dec/13 18:46
• Resolved: 03/Dec/13 16:40

Description

We've had CopyTable jobs fail because a small number of rows are wide enough to not fit into memory. If we could specify the batch size for CopyTable scans that shoud be able to break those large rows up into multiple iterations to save the heap.