學習Hbase之quick start

1.2. Quick Start

     Loopback IP

     /etc/hosts should look something like this:

vi /etc/hosts

127.0.0.1 localhost

127.0.0.1 ubuntu.ubuntu-domain ubuntu

1.2.1. Download and unpack the latest stable release.（下載下傳和解壓穩定版本）

$ tar xfvz hbase-0.94.3-security.tar.gz

$ cd hbase-0.94.3-security

        安裝之前，編輯 conf/hbase-site.xml.其中hbase.rootdir，是Hbase寫資料的目錄

                                           其中hbase.zookeeper.property.dataDir，是ZooKeeper寫資料的目錄

<?xml version="1.0"?>

<?xml-stylesheet type="text/xsl" href="configuration.xsl"?>

hbase.rootdir

/data/hbase

hbase.zookeeper.property.dataDir

/data/zookeeper

1.2.2. Start HBase

[root@ZSDDB8 hbase-0.94.3-security]# ./bin/start-hbase.sh

starting master, logging to /root/hbase-0.94.3-security/bin/../logs/hbase-root-master-ZSDDB8.out

這樣就算開啟了單執行個體的HBase

         Is java Installed?可以檢視http://blog.chinaunix.net/space.php?uid=26446098&do=blog&id=3438622   java7安裝方式

1.2.3. Shell Exercises

通過shell連接配接HBASE

[root@ZSDDB8 hbase-0.94.3-security]# ./bin/hbase shell

HBase Shell; enter 'help' for list of supported commands.

Type "exit" to leave the HBase Shell

Version 0.94.3, r1408904, Wed Nov 14 16:41:36 UTC 2012

hbase(main):001:0>

建立一個表為test且一個列集合為cf。通過list 'test'驗證它的建立然後插入一些資料

hbase(main):003:0> create 'test', 'cf'

0 row(s) in 1.2200 seconds

hbase(main):002:0> list 'test'

TABLE

test

1 row(s) in 0.0170 seconds

1 row(s) in 0.0550 seconds

hbase(main):004:0> put 'test', 'row1', 'cf:a', 'value1'

0 row(s) in 0.0560 seconds

hbase(main):005:0> put 'test', 'row2', 'cf:b', 'value2'

0 row(s) in 0.0370 seconds

hbase(main):006:0> put 'test', 'row3', 'cf:c', 'value3'

0 row(s) in 0.0450 seconds

通過執行scan 指令驗證剛插入的資料

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

ROW COLUMN+CELL

row1 column=cf:a, timestamp=1355386368983, value=value1

row2 column=cf:b, timestamp=1355386374028, value=value2

row3 column=cf:c, timestamp=1355386377745, value=value3

3 row(s) in 0.0600 seconds

得到一行的資料

hbase(main):007:0> get 'test', 'row1'

COLUMN CELL

cf:a timestamp=1355386368983, value=value1

1 row(s) in 0.0330 seconds

現在disable然後drop掉你的表，就可以清除上面你做的所有操作

hbase(main):008:0> disable 'test'

0 row(s) in 2.0730 seconds

hbase(main):009:0> drop 'test'

0 row(s) in 0.1100 seconds

退出

hbase(main):013:0> exit

1.2.4. Stopping HBase

執行stop-hbase.sh關閉HBase

$ ./bin/stop-hbase.sh

[root@ZSDDB8 hbase-0.94.3-security]# ./bin/stop-hbase.sh

stopping hbase...........

1.2.5. Where to go next

The above described standalone setup is good for testing and

we'll go into depth on the different HBase run modes, system requirements

running HBase, and critical configurations setting up a distributed HBase deploy.