ColumnFamily 上启用压缩
cd /opt/hbase
bin/hbase shell
hbase(main):001:0> create 'test', { NAME => 'cf', COMPRESSION => 'SNAPPY' }
Created table test
Took 1.0499 seconds
=> Hbase::Table - test
hbase(main):002:0> describe 'test'
Table test is ENABLED
test
COLUMN FAMILIES DESCRIPTION
{NAME => 'cf', VERSIONS => '1', EVICT_BLOCKS_ON_CLOSE => 'false', NEW_VERSION_BEHAVIOR => 'false', KEEP_DELETED_CELLS => 'FALSE', CACHE_DATA_ON_WRITE => 'false', DATA_BLOCK_ENC
ODING => 'NONE', TTL => 'FOREVER', MIN_VERSIONS => '0', REPLICATION_SCOPE => '0', BLOOMFILTER => 'ROW', CACHE_INDEX_ON_WRITE => 'false', IN_MEMORY => 'false', CACHE_BLOOMS_ON_W
RITE => 'false', PREFETCH_BLOCKS_ON_OPEN => 'false', COMPRESSION => 'SNAPPY', BLOCKCACHE => 'true', BLOCKSIZE => '65536'}
1 row(s)
Took 0.1047 seconds
ColumnFamily 上启用数据块编码
hbase(main):003:0> disable 'test'
Took 1.0723 seconds
hbase(main):004:0> alter 'test', { NAME => 'cf', DATA_BLOCK_ENCODING => 'FAST_DIFF' }
Updating all regions with the new schema...
All regions updated.
Done.
Took 1.2715 seconds
hbase(main):005:0> enable 'test'
Took 0.7507 seconds
hbase(main):006:0> describe 'test'
Table test is ENABLED
test
COLUMN FAMILIES DESCRIPTION
{NAME => 'cf', VERSIONS => '1', EVICT_BLOCKS_ON_CLOSE => 'false', NEW_VERSION_BEHAVIOR => 'false', KEEP_DELETED_CELLS => 'FALSE', CACHE_DATA_ON_WRITE => 'false', DATA_BLOCK_ENC
ODING => 'FAST_DIFF', 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 => 'SNAPPY', BLOCKCACHE => 'true', BLOCKSIZE => '65536'}
1 row(s)
Took 0.0509 seconds