[HBASE-20259] Doc configs for in-memory-compaction and add detail to in-memory-compaction logging

• Type: Bug
• Status: Resolved
• Priority: Critical
• Resolution: Fixed
• Fix Version/s: 2.0.0
• Component/s: Compaction
• Hadoop Flags: Reviewed

Release Note

Disables in-memory compaction as default (See HBASE-20464 for actually disabling IMC as default).

Adds logging of in-memory compaction configuration on creation.

Adds a chapter to the refguide on this new feature.

• Assignee: Michael Stack
• Reporter: Michael Stack
• Created: 22/Mar/18 17:12
• Updated: 03/May/19 21:31
• Resolved: 03/Apr/18 17:52

Description

I set hbase.systemtables.compacting.memstore.type to NONE but it seems like in-memory is still on. My table looks like this:

Table ycsb is ENABLED
ycsb
COLUMN FAMILIES DESCRIPTION
{NAME => 'family', VERSIONS => '1', EVICT_BLOCKS_ON_CLOSE => 'false', NEW_VERSION_BEHAVIOR => 'false', KEEP_DELETED_CELLS => 'FALSE', CACHE_DATA_ON_WRITE => 'false', DATA_BLOCK_ENCODING => 'NONE', TTL => 'FOREVER', MIN_VERSIONS => '0', REPLICATION_SCOPE => '0', BLOOMFILTER =
> 'ROW', CACHE_INDEX_ON_WRITE => 'false', IN_MEMORY => 'false', CACHE_BLOOMS_ON_WRITE => 'false', PREFETCH_BLOCKS_ON_OPEN => 'false', COMPRESSION => 'NONE', BLOCKCACHE => 'true', BLOCKSIZE => '65536'}

Looks like table doesn't have it on either (IN_MEMORY_COMPACTION doesn't show in the above).

Issue Links

• relates to: HBASE-20464 Disable IMC
• links to: Review Board (master)