[HBASE-10794] multi-get should handle replica location missing from cache

• Type: Sub-task
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 0.99.0, hbase-10070
• Assignee: Sergey Shelukhin
• Reporter: Sergey Shelukhin
• Created: 19/Mar/14 20:47
• Updated: 21/Feb/15 23:34
• Resolved: 10/Apr/14 20:58

Description

Currently the way cache works is that the meta row is stored together for all replicas of a region, so if some replicas are in recovery, getting locations for a region will still go to cache only and return null locations for these. Multi-get currently ignores such replicas. It should instead try to get location again from meta if any replica is null.

Issue Links

• is blocked by: HBASE-10634 Multiget doesn't fully work
• is blocked by: HBASE-10701 Cache invalidation improvements from client side