文章目录

Windows环境搭建Zookeeper伪集群
- - 一、准备Java环境
  - 二、准备zk安装包
  - 三、配置环境变量
  - 四、修改config
  - 五、启动
  - 六、伪集群改造
  - - - 1、tips
      - 2、改造方案1
      - 3、改造方案2
      - A 复制多份zkServer
        B 复制多份zkCli
        C 复制多份zoo.cfg
        D 复制多份data目录并指定myId
        E 复制多份log目录
  - 七、伪集群启动
  - 八、真集群怎么搞

Windows环境搭建Zookeeper伪集群

部署zk首先要有java环境【因为zk是用java编写的，zk的运行需要依赖于Java环境】。

一、准备Java环境

传送门：

Win10配置JDK环境变量
Java开发—环境搭建之JDK安装
同一台电脑安装多个版本的JDK及其注意事项

参考以上三篇就可以了。

二、准备zk安装包

传送门：

zk下载传送门
zk3.6.2下载传送门

下载后解压释放

三、配置环境变量

1、配置zk环境变量

在这里插入图片描述

2、配置Path环境变量

四、修改config

将 zoo_sample.cfg 复制一份改名为 zoo.cfg
然后添加一下内容：

# 指定data目录
dataDir=D:/tools/zookeeper/apache-zookeeper-3.6.2-bin/apache-zookeeper-3.6.2-bin/data/data1
# 指定log目录
dataLogDir=D:/tools/zookeeper/apache-zookeeper-3.6.2-bin/apache-zookeeper-3.6.2-bin/logs/log1

五、启动

先启动 zkServer.cmd 确认启动成功后启动 zkCli.cmd

确认服务端启动成功

和springboot项目一样启动后会输出zookeeper的banner ，然后注意上图两个就可以了

确认客户端启动成功

至此单机单节点的zk部署完毕，下面开始改造伪集群。

六、伪集群改造

1、tips

首先我们要知道zk的选举机制，以及至少需要三个节点才可以高可用【因为如果只有两个节点虽然也可以用，但是一个宕掉全盘皆输，高可用的zk集群需要2N+1个节点】。

伪集群就是一台机器部署多个zk实例

2、改造方案1

思路：将解压后的文件复制多分【至少三份】如下serverA、serverB、serverC，指定data和log目录
然后在修改配置文件等，这个需要复制的有点多直接用方案2吧，当然这种方式也行。

3、改造方案2

没必要复制那么多，当然了那样看着比较清晰。

思路：复制多份zkServer、复制多份zkCli、复制多份zoo.cfg、复制多份data目录【在data目录下添加myId文件并指定serverId】、复制多份log。

A 复制多份zkServer

@echo off
REM Licensed to the Apache Software Foundation (ASF) under one or more
REM contributor license agreements.  See the NOTICE file distributed with
REM this work for additional information regarding copyright ownership.
REM The ASF licenses this file to You under the Apache License, Version 2.0
REM (the "License"); you may not use this file except in compliance with
REM the License.  You may obtain a copy of the License at
REM
REM     http://www.apache.org/licenses/LICENSE-2.0
REM
REM Unless required by applicable law or agreed to in writing, software
REM distributed under the License is distributed on an "AS IS" BASIS,
REM WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
REM See the License for the specific language governing permissions and
REM limitations under the License.
setlocal
call "%~dp0zkEnv.cmd"
set ZOOMAIN=org.apache.zookeeper.server.quorum.QuorumPeerMain
set ZOO_LOG_FILE=zookeeper-%USERNAME%-server-%COMPUTERNAME%.log
set ZOOCFG=..\conf\zoo1.cfg
echo on
call %JAVA% "-Dzookeeper.log.dir=%ZOO_LOG_DIR%" "-Dzookeeper.root.logger=%ZOO_LOG4J_PROP%" "-Dzookeeper.log.file=%ZOO_LOG_FILE%" "-XX:+HeapDumpOnOutOfMemoryError" "-XX:OnOutOfMemoryError=cmd /c taskkill /pid %%%%p /t /f" -cp "%CLASSPATH%" %ZOOMAIN% "%ZOOCFG%" %*
pause
endlocal

添加 set ZOOCFG=…\conf\zoo1.cfg 指定配置文件的位置

B 复制多份zkCli

@echo off
REM Licensed to the Apache Software Foundation (ASF) under one or more
REM contributor license agreements.  See the NOTICE file distributed with
REM this work for additional information regarding copyright ownership.
REM The ASF licenses this file to You under the Apache License, Version 2.0
REM (the "License"); you may not use this file except in compliance with
REM the License.  You may obtain a copy of the License at
REM
REM     http://www.apache.org/licenses/LICENSE-2.0
REM
REM Unless required by applicable law or agreed to in writing, software
REM distributed under the License is distributed on an "AS IS" BASIS,
REM WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
REM See the License for the specific language governing permissions and
REM limitations under the License.
setlocal
call "%~dp0zkEnv.cmd"
set ZOO_LOG_FILE=zookeeper-%USERNAME%-cli-%COMPUTERNAME%.log
set ZOOCFG=..\conf\zoo1.cfg
set ZOOMAIN=org.apache.zookeeper.ZooKeeperMain
call %JAVA% "-Dzookeeper.log.dir=%ZOO_LOG_DIR%" "-Dzookeeper.root.logger=%ZOO_LOG4J_PROP%" "-Dzookeeper.log.file=%ZOO_LOG_FILE%" -cp "%CLASSPATH%" %ZOOMAIN% %*
endlocal

添加 set ZOOCFG=…\conf\zoo1.cfg

C 复制多份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=D:/tools/zookeeper/apache-zookeeper-3.6.2-bin/apache-zookeeper-3.6.2-bin/data/data2
dataLogDir=D:/tools/zookeeper/apache-zookeeper-3.6.2-bin/apache-zookeeper-3.6.2-bin/logs/log2
# the port at which the clients will connect
clientPort=2182
admin.serverPort=8082
server.1=localhost:2887:3887
server.2=localhost:2888:3888
server.3=localhost:2889:3889
server.4=localhost:2890:3890
# 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
## Metrics Providers
#
# https://prometheus.io Metrics Exporter
#metricsProvider.className=org.apache.zookeeper.metrics.prometheus.PrometheusMetricsProvider
#metricsProvider.httpPort=7000
#metricsProvider.exportJvmInfo=true

#实例暴露端口一个实例分配一个
clientPort=2182
#admin需要的端口一个实例指定一个，否则端口占用启动失败
admin.serverPort=8082
#server.A=B.C.D
#A:myId对应的值即serverid、B：实例所在机器的IP、C：表示与 Leader 服务器交换信息的端口；D 表示的是进行选举时的通信端口。
server.1=localhost3887
server.2=localhost3888
server.3=localhost3889
server.4=localhost3890