[TRAFODION-1500] ESP co-location needs to consider some nodes may host too many ESP processes due to data in-balance

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 1.2-incubating
• Component/s: sql-cmp
• Assignee: Qifan Chen
• Reporter: Qifan Chen
• Created: 25/Sep/15 15:15
• Updated: 15/Sep/18 07:32
• Resolved: 25/Sep/15 19:16

Description

When a table is range-partitioned, or stats partitioned, it is possible that the amount of the data hosted at each region server may not be uniform. Assume region server s running on node n hosts more data than the rest of the region servers. With the current ESP co-location assignment, node s will be assigned with more # of ESPs.