dubbo环境配置(jdk+maven+zookeeper)

haizi

jdk安装

略

maven安装

下载maven包

    wget http://apache.fayea.com/maven/maven-3/3.3.9/binaries/apache-maven-3.3.9-bin.tar.gz

解压包

    tar -vxf apache-maven-3.2.3-bin.tar.gz

修改环境变量

    在 /etc/profile当中添加
    MAVEN_HOME=/usr/local/maven3
    export MAVEN_HOME
    export PATH= ${PATH}:$ {MAVEN_HOME}/bin
    保存后source让环境变量生效

zookeeper安装

下载zookeeper包

   http://mirrors.hust.edu.cn/apache/zookeeper/zookeeper-3.4.10/zookeeper-3.4.10.tar.gz

使用bin/zkServer.sh start启动
配置文件

# 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=~/dubbo/zookeeper-3.4.10/data
dataLogDir=~/dubbo/zooleeper-3.4.10/logs
# 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

    1. initLimit:配置zookeeper接受服务器集群中链接到leader的follower服务器个数限制.当超过tickTime*syncLimit的时间(单位ms)没有收到连接,则这个服务连接失效
    2. 另外还有服务器配置,使用server.A=B:C:D 的格式,如:server.1=192.168.248.248:2888:3888
    其中server.1表示几号服务器,B是它的ip地址,C是这个服务器与集群leader交换信息的端口,D表示如果leader服务器挂掉了,则通过选举重新选出leader,D为选举时的通信端口