hbase 导入导出、hbase shell 基本命令。

数据导入

./hbase org.apache.hadoop.hbase.mapreduce.Driver import 表名数据文件位置
hdfs
数据文件位置可以加前缀 file:///

否则会访问 hdfs 地址。

数据导出
./hbase org.apache.hadoop.hbase.mapreduce.Driver export 表名数据文件位置

进入shell 命令。

cd /hbaseHOME/bin/

cd ./hbase shell

2016-05-20 15:36:32,370 INFO [main] Configuration.deprecation: hadoop.native.lib is deprecated. Instead, use io.native.lib.available
HBase Shell; enter \'help<RETURN>\' for list of supported commands.
Type "exit<RETURN>" to leave the HBase Shell
Version 0.98.6-zdh2.1.0-SNAPSHOT, r112581, Mon Jan 25 05:25:14 CST 2016

hbase(main):001:0>

创建 hbase 表格

create \'表名称\', \'列名称1\',\'列名称2\',\'列名称N\'

hbase(main):001:0>create \'test\' ,\'name\' ,\'value\'

查看test 表构造

在shell中输入describe ‘表名’

hbase(main):003:0> desc \'test\'

DESCRIPTION ENABLED
\'test\', {NAME => \'course\', DATA_BLOCK_ENCODING => \'NONE\', REPL true
ICATION => \'0\', BLOOMFILTER => \'ROW\', REPLICATION_SCOPE => \'0\'
, COMPRESSION => \'NONE\', VERSIONS => \'1\', MIN_VERSIONS => \'0\',
TTL => \'FOREVER\', KEEP_DELETED_CELLS => \'false\', BLOCKSIZE =>
\'65536\', ENCODE_ON_DISK => \'true\', IN_MEMORY => \'false\', BLOC
KCACHE => \'true\'}, {NAME => \'name\', DATA_BLOCK_ENCODING => \'NO
NE\', REPLICATION => \'0\', BLOOMFILTER => \'ROW\', REPLICATION_SCO
PE => \'0\', COMPRESSION => \'NONE\', VERSIONS => \'1\', MIN_VERSION
S => \'0\', TTL => \'FOREVER\', KEEP_DELETED_CELLS => \'false\', BLO
CKSIZE => \'65536\', ENCODE_ON_DISK => \'true\', IN_MEMORY => \'fal
se\', BLOCKCACHE => \'true\'}
1 row(s) in 0.0820 seconds

hbase(main):004:0>

添加数据

在shell中输入：put \'表名称\', \'行名称\', \'列名称:\', \'值\'

hbase(main):005:0>put \'test\',\'Tom\',\'value:scores\',\'80\'

0 row(s) in 0.1420 seconds

查看数据

在shell中输入：get \'表名称\', \'行名称\'

hbase(main):010:0> get \'test\',\'Tom\'

COLUMN CELL
course:math timestamp=1463730444304, value=90
1 row(s) in 0.0140 seconds

hbase(main):006:0>

查看总数据

在shell中输入：scan \'表名称\'

hbase(main):006:0>scan \'test\'

ROW COLUMN+CELL
Tom column=course:math, timestamp=1463730322512, value=80
1 row(s) in 0.0750 seconds

修改数据

在shell中输入：put \'表名称\', \'行名称\', \'列名称:\', \'值\'(对原数值修改)

hbase(main):007:0>put \'test\',\'Tom\',\'course:math\',\'90\'

put \'test\',\'Tom\',\'course:math\',\'90\'

hbase(main):007:0>scan \'test\'

ROW COLUMN+CELL
Tom column=course:math, timestamp=1463730444304, value=90
1 row(s) in 0.0140 seconds

另外还有 list 方法。查看所有的表格。

count ‘表名’ 查看记录总数等。

先到这里

the end