CentOS 7에 Zookeeper 설치하기

설치 및 셋팅 2016. 8. 9. 12:16

설치

주키퍼 설치

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$ wget http://apache.mirror.cdnetworks.com/zookeeper/stable/zookeeper-3.4.9.tar.gz
$ tar zxvf zookeeper-3.4.9.tar.gz
$ mv zookeeper-3.4.9 /usr/share/
$ cd /usr/share/
$ ln -s zookeeper-3.4.9 zookeeper

주키퍼 데이터 폴더 생성

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$ mkdir -p /home/data/zookeeper

주키퍼 설정

zoo_sample.cfg를 zoo.cfg 이름으로 복사 후, dataDir 설정하고, server 추가

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$ cd zookeeper/conf
$ cp zoo_sample.cfg zoo.cfg
$ vi zoo.cfg
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# The number of milliseconds of each tick
tickTime=2000
# The number of ticks that the initial
# synchronization phase can take
initLimit=10
# The number of ticks that can pass between
# sending a request and getting an acknowledgement
syncLimit=5
# the directory where the snapshot is stored.
# do not use /tmp for storage, /tmp here is just
# example sakes.
dataDir=/home/data/zookeeper
# the port at which the clients will connect
clientPort=2181
# the maximum number of client connections.
# increase this if you need to handle more clients
#maxClientCnxns=60
#
# Be sure to read the maintenance section of the
# administrator guide before turning on autopurge.
#
# http://zookeeper.apache.org/doc/current/zookeeperAdmin.html#sc_maintenance
#
# The number of snapshots to retain in dataDir
#autopurge.snapRetainCount=3
# Purge task interval in hours
# Set to "0" to disable auto purge feature
#autopurge.purgeInterval=1
 
server.1=192.168.199.128:2888:3888
server.2=192.168.199.129:2888:3888
server.3=192.168.199.130:2888:3888

각 서버의 주키퍼 데이터 폴더에 myid 파일을 생성해 고유 아이디값 저장

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# 192.168.199.128
$  vi /home/data/zookeeper/myid
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# 192.168.199.129
$  vi /home/data/zookeeper/myid
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# 192.168.199.130
$  vi /home/data/zookeeper/myid
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부팅시 자동으로 실행하도록 서비스 등록

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$ cd /etc/init.d
$ vi zookeeper-server
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#!/bin/sh
#
# chkconfig: - 80 05
# description: zookeeper server
#
 
BIN_PATH=/usr/share/zookeeper/bin
case $1 in
          start)  ${BIN_PATH}/zkServer.sh start   ;;
          stop)  ${BIN_PATH}/zkServer.sh stop;;
          status)  ${BIN_PATH}/zkServer.sh status;;
          restart)  ${BIN_PATH}/zkServer.sh restart;;
              *)  echo "require start|stop|status|restart"  ;;
esac
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$ chmod +x zookeeper-server
$ chkconfig --add zookeeper-server
$ chkconfig zookeeper-server on

켜고 끄고 해보기

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$ service zookeeper-server start
ZooKeeper JMX enabled by default
Using config: /usr/share/zookeeper/bin/../conf/zoo.cfg
Starting zookeeper ... STARTED
 
$ service zookeeper-server status
ZooKeeper JMX enabled by default
Using config: /usr/share/zookeeper/bin/../conf/zoo.cfg
Mode: leader
 
$ service zookeeper-server stop
ZooKeeper JMX enabled by default
Using config: /usr/share/zookeeper/bin/../conf/zoo.cfg
Stopping zookeeper ... STOPPED

노드를 생성하고 조회하고 지워보기

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$ cd /usr/share/zookeeper
$ bin/zkCli.sh -server 192.168.199.128:2181
# /zk_test 노드 생성하고, 그 노드에 my_data라는 데이터 넣기
[zk: 192.168.199.128:2181(CONNECTED) 0]create /zk_test my_data
Created /zk_test
 
# 조회
[zk: 192.168.199.128:2181(CONNECTED) 1] ls /
[zookeeper, zk_test]
 
# 노드 데이터 얻기
[zk: 192.168.199.128:2181(CONNECTED) 2] get /zk_test
my_data
cZxid = 0x10
ctime = Wed Aug 10 00:05:03 KST 2016
mZxid = 0x10
mtime = Wed Aug 10 00:05:03 KST 2016
pZxid = 0x10
cversion = 0
dataVersion = 0
aclVersion = 0
ephemeralOwner = 0x0
dataLength = 7
numChildren = 0
 
# 노드 데이터 설정
[zk: 192.168.199.128:2181(CONNECTED) 3] set /zk_test hello
cZxid = 0x10
ctime = Wed Aug 10 00:05:03 KST 2016
mZxid = 0x11
mtime = Wed Aug 10 00:05:36 KST 2016
pZxid = 0x10
cversion = 0
dataVersion = 1
aclVersion = 0
ephemeralOwner = 0x0
dataLength = 5
numChildren = 0
 
# 노드 지우기
[zk: 192.168.199.128:2181(CONNECTED) 4] delete /zk_test
[zk: 192.168.199.128:2181(CONNECTED) 5] ls /
[zookeeper]


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