zookeeper的高可用部署
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说明：zookeeper是一个服务注册中心
2. zookeeper的部署
2.1 三台主机
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192.168.56.15
192.168.56.16
192.168.56.17
[root@zk01 ~]
# cat /etc/hosts
192.168.56.15 zk01
192.168.56.16 zk02
192.168.56.17 zk03
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2.2 java环境
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[root@zk01 ~]
# java -version
java version
"1.7.0_80"
Java(TM) SE Runtime Environment (build 1.7.0_80-b15)
Java HotSpot(TM) 64-Bit Server VM (build 24.80-b11, mixed mode)
[root@zk01 ~]
#
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2.3 做成这样的
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[root@zk01 ~]
# cd /opt
[root@zk01 opt]
# ll
total 8
lrwxrwxrwx 1 root root 11 Dec 25 01:24 jdk -> jdk1.7.0_80
drwxr-xr-x 8 10 143 4096 Apr 11 2015 jdk1.7.0_80
drwxr-xr-x 2 root root 61 Dec 25 01:30 tools
lrwxrwxrwx 1 root root 15 Dec 25 01:29 zk01 -> zookeeper-3.4.9
drwxr-xr-x 12 1001 1001 4096 Dec 25 01:39 zookeeper-3.4.9
[root@zk01 opt]
#
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2.4 修改zookeeper配置文件（zk01）
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[root@zk01 conf]
# pwd
/opt/zk01/conf
cp
zoo_sample.cfg zoo.cfg
vi
zoo.cfg
dataDir=
/opt/zk01/datadir
dataLogDir=
/opt/zk01/datalog
#自己加的
server.1=192.168.56.15:2888:3888
server.2=192.168.56.16:2888:3888
server.3=192.168.56.17:2888:3888
mkdir
/opt/zk01/datadir
mkdir
/opt/zk01/datalog
[root@zk01 datadir]
# cat myid
1
[root@zk01 datadir]
# pwd
/opt/zk01/datadir
[root@zk01 datadir]
#
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2.5 修改zookeeper配置文件（zk02）
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[root@zk02 conf]
# pwd
/opt/zk02/conf
cp
zoo_sample.cfg zoo.cfg
vi
zoo.cfg
dataDir=
/opt/zk02/datadir
dataLogDir=
/opt/zk02/datalog
#自己加的
server.1=192.168.56.15:2888:3888
server.2=192.168.56.16:2888:3888
server.3=192.168.56.17:2888:3888
mkdir
/opt/zk02/datadir
mkdir
/opt/zk02/datalog
[root@zk02 datadir]
# cat myid
2
[root@zk02 datadir]
# pwd
/opt/zk03/datadir
[root@zk02 datadir]
#
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2.6 修改zookeeper配置文件（zk03）
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[root@zk03 conf]
# pwd
/opt/zk03/conf
cp
zoo_sample.cfg zoo.cfg
vi
zoo.cfg
dataDir=
/opt/zk03/datadir
dataLogDir=
/opt/zk03/datalog
#自己加的
server.1=192.168.56.15:2888:3888
server.2=192.168.56.16:2888:3888
server.3=192.168.56.17:2888:3888
mkdir
/opt/zk03/datadir
mkdir
/opt/zk03/datalog
[root@zk03 datadir]
# cat myid
3
[root@zk03 datadir]
# pwd
/opt/zk03/datadir
[root@zk03 datadir]
#
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2.7 启动zookeeper服务
按照顺序zk01 zk02 zk03的顺序
依次启动zookeeper服务
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[root@zk01 bin]
# pwd
/opt/zk01/bin
[root@zk01 bin]
# ./zkServer.sh start
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2.8 验证服务是否正常（每个都要验证下）
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[root@zk01 bin]
# ./zkCli.sh -server 192.168.56.15:2181
正常状态
[root@zk01 bin]
# ./zkCli.sh -server 192.168.56.15:2181
Connecting to 192.168.56.15:2181
2016-12-25 02:11:10,892 [myid:] - INFO [main:Environment@100] - Client environment:zookeeper.version=3.4.9-1757313, built on 08
/23/2016
06:50 GMT
2016-12-25 02:11:10,900 [myid:] - INFO [main:Environment@100] - Client environment:host.name=zk01
2016-12-25 02:11:10,900 [myid:] - INFO [main:Environment@100] - Client environment:java.version=1.7.0_80
2016-12-25 02:11:10,905 [myid:] - INFO [main:Environment@100] - Client environment:java.vendor=Oracle Corporation
2016-12-25 02:11:10,905 [myid:] - INFO [main:Environment@100] - Client environment:java.home=
/opt/jdk1
.7.0_80
/jre
2016-12-25 02:11:10,906 [myid:] - INFO [main:Environment@100] - Client environment:java.class.path=
/opt/zk01/bin/
..
/build/classes
:
/opt/zk01/bin/
..
/build/lib/
*.jar:
/opt/zk01/bin/
..
/lib/slf4j-log4j12-1
.6.1.jar:
/opt/zk01/bin/
..
/lib/slf4j-api-1
.6.1.jar:
/opt/zk01/bin/
..
/lib/netty-3
.10.5.Final.jar:
/opt/zk01/bin/
..
/lib/log4j-1
.2.16.jar:
/opt/zk01/bin/
..
/lib/jline-0
.9.94.jar:
/opt/zk01/bin/
..
/zookeeper-3
.4.9.jar:
/opt/zk01/bin/
..
/src/java/lib/
*.jar:
/opt/zk01/bin/
..
/conf
:.:
/opt/jdk/lib
:
/opt/jdk/jre/lib
:
/opt/jdk/lib/tools
.jar
2016-12-25 02:11:10,906 [myid:] - INFO [main:Environment@100] - Client environment:java.library.path=
/usr/java/packages/lib/amd64
:
/usr/lib64
:
/lib64
:
/lib
:
/usr/lib
2016-12-25 02:11:10,906 [myid:] - INFO [main:Environment@100] - Client environment:java.io.tmpdir=
/tmp
2016-12-25 02:11:10,907 [myid:] - INFO [main:Environment@100] - Client environment:java.compiler=<NA>
2016-12-25 02:11:10,907 [myid:] - INFO [main:Environment@100] - Client environment:os.name=Linux
2016-12-25 02:11:10,907 [myid:] - INFO [main:Environment@100] - Client environment:os.arch=amd64
2016-12-25 02:11:10,908 [myid:] - INFO [main:Environment@100] - Client environment:os.version=3.10.0-514.2.2.el7.x86_64
2016-12-25 02:11:10,908 [myid:] - INFO [main:Environment@100] - Client environment:user.name=root
2016-12-25 02:11:10,908 [myid:] - INFO [main:Environment@100] - Client environment:user.home=
/root
2016-12-25 02:11:10,909 [myid:] - INFO [main:Environment@100] - Client environment:user.
dir
=
/opt/zookeeper-3
.4.9
/bin
2016-12-25 02:11:10,918 [myid:] - INFO [main:ZooKeeper@438] - Initiating client connection, connectString=192.168.56.15:2181 sessionTimeout=30000 watcher=org.apache.zookeeper.ZooKeeperMain$MyWatcher@2f49f848
Welcome to ZooKeeper!
2016-12-25 02:11:10,969 [myid:] - INFO [main-SendThread(192.168.56.15:2181):ClientCnxn$SendThread@1032] - Opening socket connection to server 192.168.56.15
/192
.168.56.15:2181. Will not attempt to authenticate using SASL (unknown error)
2016-12-25 02:11:10,975 [myid:] - INFO [main-SendThread(192.168.56.15:2181):ClientCnxn$SendThread@876] - Socket connection established to 192.168.56.15
/192
.168.56.15:2181, initiating session
JLine support is enabled
2016-12-25 02:11:11,018 [myid:] - INFO [main-SendThread(192.168.56.15:2181):ClientCnxn$SendThread@1299] - Session establishment complete on server 192.168.56.15
/192
.168.56.15:2181, sessionid = 0x15931f6222c0002, negotiated timeout = 30000
WATCHER::
WatchedEvent state:SyncConnected
type
:None path:null
[zk: 192.168.56.15:2181(CONNECTED) 0]
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2.9查看每个服务器的状态信息
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[root@zk01 bin]
# ./zkServer.sh status
ZooKeeper JMX enabled by default
Using config:
/opt/zk01/bin/
..
/conf/zoo
.cfg
Mode: follower
[root@zk01 bin]
#
[root@zk02 bin]
# ./zkServer.sh status
ZooKeeper JMX enabled by default
Using config:
/opt/zk02/bin/
..
/conf/zoo
.cfg
Mode: leader
[root@zk02 bin]
#
[root@zk03 bin]
# ./zkServer.sh status
ZooKeeper JMX enabled by default
Using config:
/opt/zk03/bin/
..
/conf/zoo
.cfg
Mode: follower
[root@zk03 bin]
#
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2.10 端口简介：
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zookeepr 客户端的调用的端口是2181 在zoo.cfg中
server.1=192.168.56.15:2888:3888
2888 follower和 leader之间的通讯的端口
3888 是如果leader当机了 zookeeper服务器之间的选举的端口
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本文转自 小小三郎1 51CTO博客，原文链接：http://blog.51cto.com/wsxxsl/1885812，如需转载请自行联系原作者