[KUDU-2084] Improve to increase/decrease the number of maps for MR/YARN job on Kudu

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Won't Fix
• Fix Version/s: NA
• Assignee: Unassigned
• Reporter: David Wang
• Created: 31/Jul/17 08:42
• Updated: 03/Jun/20 16:22
• Resolved: 03/Jun/20 16:22

Description

Right now, we can't increase/decrease the number of maps of MR/YARN job by below logical.

https://github.com/cloudera/kudu/blob/branch-1.4.x/java/kudu-mapreduce/src/main/java/org/apache/kudu/mapreduce/KuduTableInputFormat.java#L137-L166

Should we make improvement to let customer at lease able to decrease the mapper?

Issue Links

• relates to: KUDU-3142 Deprecate and remove kudu-mapreduce integration