[HBASE-11841] [0.98] Option for disabling location prefetch

• Type: Improvement
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Fix Version/s: 0.98.6
• Hadoop Flags: Reviewed
• Assignee: Andrew Kyle Purtell
• Reporter: Andrew Kyle Purtell
• Created: 27/Aug/14 19:55
• Updated: 20/Nov/15 11:55
• Resolved: 28/Aug/14 18:20

Description

On HBASE-10018 we removed location prefetch in versions > 0.98. That issue enumerates some of the issues with location prefetch. It is already possible to disable location prefetch on a per table basis via HTable#setRegionCachePrefetch(TableName tableName, boolean enable) but we should have a site configuration option that disables prefetch globally without requiring application code take some special action like setRegionCachePrefetch.