[HBASE-11364] [BlockCache] Add a flag to cache data blocks in L1 if multi-tier cache

• Type: Task
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 0.99.0
• Release Note: Adds a flag to HColumnDescriptor, cacheDataInL1. In shell, you set it as follows: hbase(main):003:0> create 't', {NAME => 't', CONFIGURATION => {CACHE_DATA_IN_L1 => 'true'}}
• Assignee: Michael Stack
• Reporter: Michael Stack
• Created: 16/Jun/14 21:42
• Updated: 21/Feb/15 23:34
• Resolved: 18/Jun/14 03:34

Description

This is a prerequisite for HBASE-11323 BucketCache on all the time. It addresses a @lars hofhansl ask that we be able to ask that for some column families, even their data blocks get cached up in the LruBlockCache L1 tier in a multi-tier deploy as happens when doing BucketCache (CombinedBlockCache) setups.

Issue Links

• is depended upon by: HBASE-11323 BucketCache all the time!