Linux安装zookeeper(伪集群)
环境:
系统: Alibaba Cloud Linux 3 (Soaring Falcon)
jdk: jdk8
1.下载安装包
zookeeper官网: https://zookeeper.apache.org/releases.html
找到对应版本,这里以稳定版 3.8.3 为例,在节点上下载
# wget https://dlcdn.apache.org/zookeeper/zookeeper-3.8.3/apache-zookeeper-3.8.3-bin.tar.gz --no-check-certificate
2.解压对应压缩包
# tar -xzvf apache-zookeeper-3.8.3-bin.tar.gz
将路径添加到环境变量中
# pwd /home/apache-zookeeper-3.8.3-bin
编辑 /etc/profile,添加
export ZOOKEEPER_HOME=/home/apache-zookeeper-3.8.3-bin
使之生效
source /etc/profile
3.数据及日志文件准备
创建数据存放目录
mkdir -p ./data/zk/data ./data/zk1/data ./data/zk2/data
创建日志目录
mkdir -p ./data/zk/dataLog ./data/zk1/dataLog ./data/zk2/dataLog
4.配置文件
修改配置文件
复制./conf/zoo_sample.cfg 并命名为 ./conf /zoo.cfg
cp ./conf/zoo_sample.cfg ./conf/zoo.cfg
修改内部配置参数如下
# 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=${ZOOKEEPER_HOME}/data
# 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.
#
# https://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
## Metrics Providers
#
# https://prometheus.io Metrics Exporter
#metricsProvider.className=org.apache.zookeeper.metrics.prometheus.PrometheusMetricsProvider
#metricsProvider.httpHost=0.0.0.0
#metricsProvider.httpPort=7000
#metricsProvider.exportJvmInfo=true
server.1=127.0.0.1:2001:3001
server.2=127.0.0.1:2002:3002
server.3=127.0.0.1:2003:3003
[root@iZbp1eruj60nrojc5y3u39Z conf]# vim zoo.cfg
[root@iZbp1eruj60nrojc5y3u39Z conf]# cat zoo.cfg
# 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/apache-zookeeper-3.8.3-bin/data/zk/data
dataLogData=/home/apache-zookeeper-3.8.3-bin/data/zk/dataLog
# 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.
#
# https://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
## Metrics Providers
#
# https://prometheus.io Metrics Exporter
#metricsProvider.className=org.apache.zookeeper.metrics.prometheus.PrometheusMetricsProvider
#metricsProvider.httpHost=0.0.0.0
#metricsProvider.httpPort=7000
#metricsProvider.exportJvmInfo=true
server.1=127.0.0.1:2001:3001
server.2=127.0.0.1:2002:3002
server.3=127.0.0.1:2003:3003
同理复制并修改为 zoo1.cfg 和 zoo2.cfg,并修改数据存放文件夹、日志文件夹和端口号
在每个zookeeper下创建 myid文件,内容为 1、2、3, 就是每台zookeeper的机器ID.
echo 1 >${ZOOKEEPER_HOME}/data/zk/data/myid echo 2 >${ZOOKEEPER_HOME}/data/zk1/data/myid echo 3 >${ZOOKEEPER_HOME}/data/zk2/data/myid
5.启动
启动命令:
./bin/zkServer.sh start ./conf/zoo.cfg ./bin/zkServer.sh start ./conf/zoo1.cfg ./bin/zkServer.sh start ./conf/zoo2.cfg
成功提示:
# ./bin/zkServer.sh start ./conf/zoo.cfg ZooKeeper JMX enabled by default Using config: ./conf/zoo.cfg Starting zookeeper ... STARTED
如安装失败,可查看安装日志目录 ${ZOOKEEPER_HOME}/logs 里面的out日志
查看状态
./bin/zkServer.sh status ./conf/zoo.cfg ./bin/zkServer.sh status ./conf/zoo1.cfg ./bin/zkServer.sh status ./conf/zoo2.cfg
状态提示:
follower:
# ./bin/zkServer.sh status ./conf/zoo.cfg ZooKeeper JMX enabled by default Using config: ./conf/zoo.cfg Client port found: 2181. Client address: localhost. Client SSL: false. Mode: follower
leader:
# ./bin/zkServer.sh status ./conf/zoo1.cfg ZooKeeper JMX enabled by default Using config: ./conf/zoo1.cfg Client port found: 2182. Client address: localhost. Client SSL: false. Mode: leader