一、Zookeeper的安装
1.http://www-us.apache.org/dist/zookeeper/stable/下载Zookeeper安装包,并将zookeeper-3.4.12.tar.gz复制到/home/jun下并解压
[jun@master ~]$ cd zookeeper-3.4./
[jun@master zookeeper-3.4.]$ ls -l
total
drwxr-xr-x. jun jun Mar : bin
-rw-rw-r--. jun jun Mar : build.xml
drwxr-xr-x. jun jun Mar : conf
drwxr-xr-x. jun jun Mar : contrib
drwxr-xr-x. jun jun Mar : dist-maven
drwxr-xr-x. jun jun Mar : docs
-rw-rw-r--. jun jun Mar : ivysettings.xml
-rw-rw-r--. jun jun Mar : ivy.xml
drwxr-xr-x. jun jun Mar : lib
-rw-rw-r--. jun jun Mar : LICENSE.txt
-rw-rw-r--. jun jun Mar : NOTICE.txt
-rw-rw-r--. jun jun Mar : README.md
-rw-rw-r--. jun jun Mar : README_packaging.txt
drwxr-xr-x. jun jun Mar : recipes
drwxr-xr-x. jun jun Mar : src
-rw-rw-r--. jun jun Mar : zookeeper-3.4..jar
-rw-rw-r--. jun jun Mar : zookeeper-3.4..jar.asc
-rw-rw-r--. jun jun Mar : zookeeper-3.4..jar.md5
-rw-rw-r--. jun jun Mar : zookeeper-3.4..jar.sha1
2.使用gedit编辑zoo.cfg配置文件
[jun@master zookeeper-3.4.]$ cp /home/jun/zookeeper-3.4./conf/zoo_sample.cfg /home/jun/zookeeper-3.4./conf/zoo.cfg
[jun@master zookeeper-3.4.]$ gedit /home/jun/zookeeper-3.4./conf/zoo.cfg
将下面的配置增加到最后面,配置的意思是“服务器编号、服务器地址、LF通信端口(Leader与Follower)、选举端口”
server.=master::
server.=slave0::
server.=slave1::
3.创建节点标志文件
由于在zoo.cfg当中配置了三台服务器,每一台服务器本地也需要一个myid文件,里面包含服务器的ID号,需要在三台机器上都创建myid文件。以master为例:
首先递归创建目录(-p)
[jun@master zookeeper-3.4.]$ mkdir -p /tmp/zookeeper
[jun@master zookeeper-3.4.]$ gedit /tmp/zookeeper/myid
然后新建myid文件并输入对应的id号,只输入一个1即可。
[jun@master zookeeper-3.4.]$ cat /tmp/zookeeper/myid
另外两台机器同理。
4.将Zookeeper安装文件从master复制到slave上(-r的意思是拷贝所有的文件和文件夹)
[jun@master zookeeper-3.4.]$ scp -r /home/jun/zookeeper-3.4./ slave0:~
[jun@master zookeeper-3.4.]$ scp -r /home/jun/zookeeper-3.4./ slave1:~
5.Zookeeper集群的启动
(1)需要在三个节点上分别执行启动操作
[jun@master zookeeper-3.4.]$ /home/jun/zookeeper-3.4./bin/zkServer.sh start
ZooKeeper JMX enabled by default
Using config: /home/jun/zookeeper-3.4./bin/../conf/zoo.cfg
Starting zookeeper ... STARTED [jun@slave0 ~]$ /home/jun/zookeeper-3.4.12/bin/zkServer.sh start
ZooKeeper JMX enabled by default
Using config: /home/jun/zookeeper-3.4.12/bin/../conf/zoo.cfg
Starting zookeeper ... STARTED [jun@slave1 ~]$ /home/jun/zookeeper-3.4.12/bin/zkServer.sh start
ZooKeeper JMX enabled by default
Using config: /home/jun/zookeeper-3.4.12/bin/../conf/zoo.cfg
Starting zookeeper ... STARTED
(2)至少启动两台服务器后,集群才会开始选举leader节点,可以在三台服务器上分别查看集群的状态,可以看到slave0节点是leader节点。
[jun@master ~]$ /home/jun/zookeeper-3.4./bin/zkServer.sh status
ZooKeeper JMX enabled by default
Using config: /home/jun/zookeeper-3.4./bin/../conf/zoo.cfg
Mode: follower [jun@slave0 ~]$ /home/jun/zookeeper-3.4./bin/zkServer.sh status
ZooKeeper JMX enabled by default
Using config: /home/jun/zookeeper-3.4./bin/../conf/zoo.cfg
Mode: leader [jun@slave1 ~]$ /home/jun/zookeeper-3.4./bin/zkServer.sh status
ZooKeeper JMX enabled by default
Using config: /home/jun/zookeeper-3.4./bin/../conf/zoo.cfg
Mode: follower
(3)Zookeeper客户端交互式操作
[jun@master ~]$ /home/jun/zookeeper-3.4./bin/zkCli.sh -server master:
Connecting to master:
-- ::, [myid:] - INFO [main:Environment@] - Client environment:zookeeper.version=3.4.-e5259e437540f349646870ea94dc2658c4e44b3b, built on // : GMT
-- ::, [myid:] - INFO [main:Environment@] - Client environment:host.name=master
-- ::, [myid:] - INFO [main:Environment@] - Client environment:java.version=1.8.0_171
-- ::, [myid:] - INFO [main:Environment@] - Client environment:java.vendor=Oracle Corporation
-- ::, [myid:] - INFO [main:Environment@] - Client environment:java.home=/usr/java/jdk1..0_171/jre
-- ::, [myid:] - INFO [main:Environment@] - Client environment:java.class.path=/home/jun/zookeeper-3.4./bin/../build/classes:/home/jun/zookeeper-3.4./bin/../build/lib/*.jar:/home/jun/zookeeper-3.4.12/bin/../lib/slf4j-log4j12-1.7.25.jar:/home/jun/zookeeper-3.4.12/bin/../lib/slf4j-api-1.7.25.jar:/home/jun/zookeeper-3.4.12/bin/../lib/netty-3.10.6.Final.jar:/home/jun/zookeeper-3.4.12/bin/../lib/log4j-1.2.17.jar:/home/jun/zookeeper-3.4.12/bin/../lib/jline-0.9.94.jar:/home/jun/zookeeper-3.4.12/bin/../lib/audience-annotations-0.5.0.jar:/home/jun/zookeeper-3.4.12/bin/../zookeeper-3.4.12.jar:/home/jun/zookeeper-3.4.12/bin/../src/java/lib/*.jar:/home/jun/zookeeper-3.4.12/bin/../conf:
2018-07-23 14:06:51,051 [myid:] - INFO [main:Environment@100] - Client environment:java.library.path=/usr/java/packages/lib/amd64:/usr/lib64:/lib64:/lib:/usr/lib
2018-07-23 14:06:51,051 [myid:] - INFO [main:Environment@100] - Client environment:java.io.tmpdir=/tmp
2018-07-23 14:06:51,051 [myid:] - INFO [main:Environment@100] - Client environment:java.compiler=<NA>
2018-07-23 14:06:51,052 [myid:] - INFO [main:Environment@100] - Client environment:os.name=Linux
2018-07-23 14:06:51,052 [myid:] - INFO [main:Environment@100] - Client environment:os.arch=amd64
2018-07-23 14:06:51,052 [myid:] - INFO [main:Environment@100] - Client environment:os.version=3.10.0-862.el7.x86_64
2018-07-23 14:06:51,052 [myid:] - INFO [main:Environment@100] - Client environment:user.name=jun
2018-07-23 14:06:51,052 [myid:] - INFO [main:Environment@100] - Client environment:user.home=/home/jun
2018-07-23 14:06:51,052 [myid:] - INFO [main:Environment@100] - Client environment:user.dir=/home/jun
2018-07-23 14:06:51,053 [myid:] - INFO [main:ZooKeeper@441] - Initiating client connection, connectString=master:2181 sessionTimeout=30000 watcher=org.apache.zookeeper.ZooKeeperMain$MyWatcher@799f7e29
Welcome to ZooKeeper!
2018-07-23 14:06:51,111 [myid:] - INFO [main-SendThread(master:2181):ClientCnxn$SendThread@1028] - Opening socket connection to server master/192.168.1.100:2181. Will not attempt to authenticate using SASL (unknown error)
JLine support is enabled
2018-07-23 14:06:51,191 [myid:] - INFO [main-SendThread(master:2181):ClientCnxn$SendThread@878] - Socket connection established to master/192.168.1.100:2181, initiating session
[zk: master:2181(CONNECTING) 0] 2018-07-23 14:06:51,269 [myid:] - INFO [main-SendThread(master:2181):ClientCnxn$SendThread@1302] - Session establishment complete on server master/192.168.1.100:2181, sessionid = 0x1000005d8900000, negotiated timeout = 30000 WATCHER:: WatchedEvent state:SyncConnected type:None path:null [zk: master:2181(CONNECTED) 0] help
ZooKeeper -server host:port cmd args
stat path [watch]
set path data [version]
ls path [watch]
delquota [-n|-b] path
ls2 path [watch]
setAcl path acl
setquota -n|-b val path
history
redo cmdno
printwatches on|off
delete path [version]
sync path
listquota path
rmr path
get path [watch]
create [-s] [-e] path data acl
addauth scheme auth
quit
getAcl path
close
connect host:port
[zk: master:2181(CONNECTED) 1] quit
Quitting...
2018-07-23 14:07:36,575 [myid:] - INFO [main:ZooKeeper@687] - Session: 0x1000005d8900000 closed
2018-07-23 14:07:36,577 [myid:] - INFO [main-EventThread:ClientCnxn$EventThread@521] - EventThread shut down for session: 0x1000005d8900000
二、HBase的安装
1.从http://apache.fayea.com/hbase/stable/下载hbase-1.2.6.1-bin.tar.gz并赋值到/home/jun下并解压。、
[jun@master ~]$ cd hbase-1.2.6.1/
[jun@master hbase-1.2.6.1]$ ls -l
total
drwxr-xr-x. jun jun Jun : bin
-rw-r--r--. jun jun Jun : CHANGES.txt
drwxr-xr-x. jun jun Jun : conf
drwxr-xr-x. jun jun Jun : docs
drwxr-xr-x. jun jun Jun : hbase-webapps
-rw-rw-r--. jun jun Jun : LEGAL
drwxrwxr-x. jun jun Jul : lib
-rw-rw-r--. jun jun Jun : LICENSE.txt
-rw-rw-r--. jun jun Jun : NOTICE.txt
-rw-r--r--. jun jun Jun : README.txt
2.修改conf文件夹下的环境变量hbase-env.sh
# The java implementation to use. Java 1.7+ required.
export JAVA_HOME=/usr/java/jdk1..0_171/
由于使用的jdk1.8,因此还需要将下面两行注释掉:
# Configure PermSize. Only needed in JDK7. You can safely remove it for JDK8+
#export HBASE_MASTER_OPTS="$HBASE_MASTER_OPTS -XX:PermSize=128m -XX:MaxPermSize=128m"
#export HBASE_REGIONSERVER_OPTS="$HBASE_REGIONSERVER_OPTS -XX:PermSize=128m -XX:MaxPermSize=128m"
3.修改conf文件夹下的配置文件hbase-site.xml
<configuration> <property>
<name>hbase.cluster.distributed</name>
<value>true</value>
</property> <property>
<name>hbase.rootdir</name>
<value>hdfs://master:9000/hbase</value>
</property> <property>
<name>hbase.zookeeper.quorum</name>
<value>master</value>
</property> <property>
<name>hbase.master.info.port</name>
<value></value>
</property> </configuration>
4.设置conf文件夹下的regionservers
regionservers文件类似Hadoop的slaves文件,其中保存了rigionserver的列表,启动HBase的时候,系统将根据该文件建立HBase集群。需要先删除localhost并添加两条配置
slave0
slave1
5.设置linux环境变量并source生效
#hbase
export HBASE_HOME=/home/jun/hbase-1.2.6.1/
export PATH=$HBASE_HOME/bin:$PATH
export HADOOP_CLASSPATH=$HBASE_HOME/lib/*
6.将HBase安装文件复制到slave节点
[jun@master conf]$ scp -r /home/jun/hbase-1.2.6.1/ slave0:~/
[jun@master conf]$ scp -r /home/jun/hbase-1.2.6.1/ slave1:~/
7.启动并验证HBase
(1)执行start-hbase.sh启动HBase,可以看到,系统首先启动HBase自带的ZooKeeper,然后启动HBase的HMaster,接着分别启动slave节点上的regionservers。
[jun@master conf]$ start-hbase.sh
master: starting zookeeper, logging to /home/jun/hbase-1.2.6.1/bin/../logs/hbase-jun-zookeeper-master.out
starting master, logging to /home/jun/hbase-1.2.6.1//logs/hbase-jun-master-master.out
slave0: starting regionserver, logging to /home/jun/hbase-1.2.6.1/bin/../logs/hbase-jun-regionserver-slave0.out
slave1: starting regionserver, logging to /home/jun/hbase-1.2.6.1/bin/../logs/hbase-jun-regionserver-slave1.out
(2)查看各结点的jps,其中HMaster是HBase的主控节点进程,HQuorumPeer是HBase的ZooKeeper进程(即HBase内置的ZooKeeper)。
[jun@master ~]$ jps
Jps
SecondaryNameNode
ResourceManager
HMaster
HQuorumPeer
NameNode [jun@slave0 ~]$ jps
NodeManager
HRegionServer
QuorumPeerMain
DataNode
Jps [jun@slave1 ~]$ jps
DataNode
Jps
QuorumPeerMain
HRegionServer
NodeManager
(3)使用Web方式查看HBase系统的运行状态,访问http://master:60010
三、HBase的Shell命令
执行hbase shell即可进入HBase Shell
1.创建表,其中第一个参数是表名,f1和f12是列名
hbase(main)::> create "test1", {NAME => 'f1', VERSION => }
Unknown argument ignored for column family f1: 1.8.
row(s) in 2.6300 seconds => Hbase::Table - test1
hbase(main)::> create 'test2', 'f12'
row(s) in 2.2360 seconds => Hbase::Table - test2
2.查看列表
hbase(main)::> list
TABLE
test1
test2
row(s) in 0.0270 seconds => ["test1", "test2"]
3.插入数据,其中test1是表名,id001是行键(row key),f1是列族名,uid是属性名,001是属性值
hbase(main)::> put 'test1', 'id001', 'f1:uid', ''
row(s) in 0.2300 seconds
4.扫描查询数据
hbase(main)::> scan 'test1'
ROW COLUMN+CELL
id001 column=f1:uid, timestamp=, value=
row(s) in 0.0750 seconds
5.查看表结构
hbase(main)::> describe 'test1'
Table test1 is ENABLED
test1
COLUMN FAMILIES DESCRIPTION
{NAME => 'f1', BLOOMFILTER => 'ROW', VERSIONS => '', IN_MEMORY => 'false', KEEP_DELETED_CELLS => 'FALSE', DATA_BLOCK_ENCODING => 'NONE', TTL => '
FOREVER', COMPRESSION => 'NONE', MIN_VERSIONS => '', BLOCKCACHE => 'true', BLOCKSIZE => '', REPLICATION_SCOPE => ''}
row(s) in 0.0310 seconds hbase(main)::> describe 'test2'
Table test2 is ENABLED
test2
COLUMN FAMILIES DESCRIPTION
{NAME => 'f12', BLOOMFILTER => 'ROW', VERSIONS => '', IN_MEMORY => 'false', KEEP_DELETED_CELLS => 'FALSE', DATA_BLOCK_ENCODING => 'NONE', TTL =>
'FOREVER', COMPRESSION => 'NONE', MIN_VERSIONS => '', BLOCKCACHE => 'true', BLOCKSIZE => '', REPLICATION_SCOPE => ''}
row(s) in 0.0140 seconds
6.删除表
hbase(main)::> list
TABLE
test1
test2
row(s) in 0.0100 seconds => ["test1", "test2"]
hbase(main)::> disable 'test2'
row(s) in 2.2890 seconds hbase(main)::> drop 'test2'
row(s) in 1.2660 seconds hbase(main)::> list
TABLE
test1
row(s) in 0.0110 seconds => ["test1"]
7.退出HBase Shell
hbase(main)::> exit
四、HBase和ZooKeeper的关系
如果用户在使用HBase自带的ZooKeeper的时候出现异常,导致HBase不能正常工作,这时可以停止使用自带的Zookeeper,转而启动独立安装的ZooKeeper,并重启HBase,可以快速解决上述问题。
要想让HBase使用独立安装的Zookeeper,需要对HBase进行一些配置上的修改。
1.修改conf/hbase-env.sh文件,添加如下代码(true表示使用自带的ZooKeeper)
export HBASE_MANAGES_ZK=false
2.将Zookeeper配置文件复制到HBase的CLASSPATH
cp /home/jun/zookeeper-3.4./conf/zoo.cfg /home/jun/hbase-1.2.6.1/conf
3.重启HBase即可