3.3.4　获取表的详细信息（describe命令）

describe命令用于获取表的详细信息。

语法：

    describe '表名'

范例：

    hbase(main):003:0> describe 'test4'
Table test4 is ENABLED
test4
COLUMN FAMILIES DESCRIPTION
{NAME => 'info1',
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_O
PEN => 'false',
COMPRESSION => 'NONE',
BLOCKCACHE => 'true',
BLOCKSIZE => '65536'}
{NAME => 'info2',
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'}
2 row(s)
Took 0.0638 seconds

上面列出的是表test4的详细信息。