HBase 的regioninfo，这是一个scores表的结构，这个表有两个faminly:course,grade
无意间看了下接了个图：这是一个scores表的结构，，这个表有两个faminly:course,grade
下面再来看regrioninfo的信息吧：
21474837
BLOCKCACHE
21474837
BLOCKCACHE
REGION => {NAME => 'scores,,1353524491099.c5c11a33d955ef1469708e17946c121b.', STARTKEY => '', ENDKEY => '', ENCODED => c5c11a33d955ef1469708e17946c121b, TABLE => {{NAME => 'scores', FAMILIES => [{NAME => 'course', BLOOMFILTER => 'NONE', REPLICATION_SCOPE => '0', VERSIONS => '3', COMPRESSION => 'NONE', TTL => '21474837', BLOCKSIZE => '65536', IN_MEMORY => 'false', BLOCKCACHE => 'true'}, {NAME => 'grade', BLOOMFILTER => 'NONE', REPLICATION_SCOPE => '0', VERSIONS => '3', COMPRESSION => 'NONE', TTL => '21474837', BLOCKSIZE => '65536', IN_MEMORY => 'false', BLOCKCACHE => 'true'}]}}
