CentOS7.2 安装zookeeper3.4.9
下载Zookeeper-3.4.9
在/usr/local下创建hadoop文件夹
将下载的文件迁移到该文件夹下，并解压
tar -zxvf zookeeper-3.4.9.tar.gz
进入conf配置文件夹
cd zookeeper-3.4.9/conf/
复制zoo_sample.cfg文件并命名为zoo.cfg
cp zoo_sample.cfg zoo.cfg
打开zoo.cfg,修改内容
#dataDir=/tmp/zookeeper dataDir=/usr/local/hadoop/zookeeper-3.4.9/data dataLogDir=/usr/local/hadoop/zookeeper-3.4.9/logs
修改后的完整内容：
# 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=/tmp/zookeeper dataDir=/usr/local/hadoop/zookeeper-3.4.9/data # 数据持久化路径 dataLogDir=/usr/local/hadoop/zookeeper-3.4.9/logs # 日志保存路径 # 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
修改zookeeper的环境变量，打开/etc/profile文件，并在末尾添加以下内容：
# idea - zookeeper-3.4.9 config start export ZOOKEEPER_HOME=/usr/local/hadoop/zookeeper-3.4.9/ export PATH=$ZOOKEEPER_HOME/bin:$PATH export PATH # idea - zookeeper-3.4.9 config start
添加后的完整内容：
# /etc/profile # System wide environment and startup programs, for login setup # Functions and aliases go in /etc/bashrc # It's NOT a good idea to change this file unless you know what you # are doing. It's much better to create a custom.sh shell script in # /etc/profile.d/ to make custom changes to your environment, as this # will prevent the need for merging in future updates. pathmunge () { case ":${PATH}:" in *:"$1":*) ;; *) if [ "$2" = "after" ] ; then PATH=$PATH:$1 else PATH=$1:$PATH fi esac } if [ -x /usr/bin/id ]; then if [ -z "$EUID" ]; then # ksh workaround EUID=`/usr/bin/id -u` UID=`/usr/bin/id -ru` fi USER="`/usr/bin/id -un`" LOGNAME=$USER MAIL="/var/spool/mail/$USER" fi # Path manipulation if [ "$EUID" = "0" ]; then pathmunge /usr/sbin pathmunge /usr/local/sbin else pathmunge /usr/local/sbin after pathmunge /usr/sbin after fi HOSTNAME=`/usr/bin/hostname 2>/dev/null` HISTSIZE=1000 if [ "$HISTCONTROL" = "ignorespace" ] ; then export HISTCONTROL=ignoreboth else export HISTCONTROL=ignoredups fi export PATH USER LOGNAME MAIL HOSTNAME HISTSIZE HISTCONTROL # By default, we want umask to get set. This sets it for login shell # Current threshold for system reserved uid/gids is 200 # You could check uidgid reservation validity in # /usr/share/doc/setup-*/uidgid file if [ $UID -gt 199 ] && [ "`/usr/bin/id -gn`" = "`/usr/bin/id -un`" ]; then umask 002 else umask 022 fi for i in /etc/profile.d/*.sh ; do if [ -r "$i" ]; then if [ "${-#*i}" != "$-" ]; then . "$i" else . "$i" >/dev/null fi fi done unset i unset -f pathmunge export JAVA_HOME=/usr/local/jdk/jdk1.8.0_121 export JRE_HOME=/usr/local/jdk/jdk1.8.0_121/jre export CLASSPATH=.:$JAVA_HOME/jre/lib/rt.jar:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jar export PATH=$PATH:$JAVA_HOME/bin # idea - zookeeper-3.4.9 config start export ZOOKEEPER_HOME=/usr/local/hadoop/zookeeper-3.4.9/ export PATH=$ZOOKEEPER_HOME/bin:$PATH export PATH # idea - zookeeper-3.4.9 config start
使环境变量生效
source /etc/profile
启动Zookeeper服务：
[root@localhost ~]# zkServer.sh start ZooKeeper JMX enabled by default Using config: /usr/local/hadoop/zookeeper-3.4.9/bin/../conf/zoo.cfg Starting zookeeper ... STARTED
查询Zookeeper状态：
[root@localhost ~]# zkServer.sh status ZooKeeper JMX enabled by default Using config: /usr/local/hadoop/zookeeper-3.4.9/bin/../conf/zoo.cfg Mode: standalone
停止Zookeeper服务：
[root@localhost ~]# zkServer.sh stop ZooKeeper JMX enabled by default Using config: /usr/local/hadoop/zookeeper-3.4.9/bin/../conf/zoo.cfg Stopping zookeeper ... STOPPED
重启Zookeeper服务：
[root@localhost ~]# zkServer.sh restart ZooKeeper JMX enabled by default Using config: /usr/local/hadoop/zookeeper-3.4.9/bin/../conf/zoo.cfg ZooKeeper JMX enabled by default Using config: /usr/local/hadoop/zookeeper-3.4.9/bin/../conf/zoo.cfg Stopping zookeeper ... no zookeeper to stop (could not find file /usr/local/hadoop/zookeeper-3.4.9/data # 数据持久化路径/zookeeper_server.pid) ZooKeeper JMX enabled by default Using config: /usr/local/hadoop/zookeeper-3.4.9/bin/../conf/zoo.cfg Starting zookeeper ... STARTED
设置为开机自启动：（都是网上找的，没有操作！）
方法1：
/etc/rc.d/rc.local
添加：
su -root -c '//usr/local/services/zookeeper/zookeeper-3.4.9/bin/zkServer.sh start'
方法2：
在/etc/rc.d/init.d文件夹下创建zookeeper文件
赋予操作权限
[root@localhost init.d]# touch zookeeper [root@localhost init.d]# chmod +x zookeeper [root@localhost init.d]# ls functions netconsole network README redis_6379 zookeeper [root@localhost init.d]# ls -a . .. functions netconsole network README redis_6379 zookeeper [root@localhost init.d]# ls -all 总用量 40 drwxr-xr-x. 2 root root 99 4月 10 21:24 . drwxr-xr-x. 10 root root 4096 4月 9 23:08 .. -rw-r--r--. 1 root root 15131 9月 12 2016 functions -rwxr-xr-x. 1 root root 2989 9月 12 2016 netconsole -rwxr-xr-x. 1 root root 6643 9月 12 2016 network -rw-r--r--. 1 root root 1160 3月 3 11:23 README -rwxr-xr-x. 1 root root 1702 4月 8 22:52 redis_6379 -rwxr-xr-x. 1 root root 0 4月 10 21:24 zookeeper [root@localhost init.d]# chkconfig -add zookeeper -add: 未知的选项 [root@localhost init.d]# chkconfig --add zookeeper
zookeeper文件内容：
#!/bin/bash #chkconfig:2345 20 90 #description:zookeeper #processname:zookeeper case $1 in start) su root /usr/local/hadoop/zookeeper-3.4.9/bin/zkServer.sh start;; stop) su root /usr/local/hadoop/zookeeper-3.4.9/bin/zkServer.sh stop;; status) su root /usr/local/hadoop/zookeeper-3.4.9/bin/zkServer.sh status;; restart) su root /usr/local/hadoop/zookeeper-3.4.9/bin/zkServer.sh restart;; *) echo "require start|stop|status|restart" ;; esac
将zookeeper添加到开机启动里面
chkconfig --add zookeeper
开机启动：
chkconfig zookeeper on
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Centos7.2安装zookeeper3.5.2-alpha
为了测试Curator3.2.1,重新安装zookeeper-3.5.2-alpha.tar.gz
操作与上面一样，只是换了文件夹名称为zookeeper
[root@localhost conf]# zkServer.sh status ZooKeeper JMX enabled by default Using config: /usr/local/hadoop/zookeeper/bin/../conf/zoo.cfg Client port found: 2181. Client address: localhost. Error contacting service. It is probably not running. [root@localhost conf]# zkServer.sh start ZooKeeper JMX enabled by default Using config: /usr/local/hadoop/zookeeper/bin/../conf/zoo.cfg Starting zookeeper ... FAILED TO START
解决：
查看logs里面的日志：
[root@localhost zookeeper-3.5.2]# cd logs [root@localhost logs]# ls version-2 zookeeper-hongdada-server-localhost.localdomain.out [root@localhost logs]# vi version-2 [root@localhost logs]# vi zookeeper-hongdada-server-localhost.localdomain.out
logs：
2017-12-18 22:50:31,006 [myid:] - ERROR [main:ZooKeeperServerMain@76] - Unable to start AdminServer, exiting abnormally org.apache.zookeeper.server.admin.AdminServer$AdminServerException: Problem starting AdminServer on address 0.0.0.0, port 8080 and command URL /commands at org.apache.zookeeper.server.admin.JettyAdminServer.start(JettyAdminServer.java:100) at org.apache.zookeeper.server.ZooKeeperServerMain.runFromConfig(ZooKeeperServerMain.java:127) at org.apache.zookeeper.server.ZooKeeperServerMain.initializeAndRun(ZooKeeperServerMain.java:103) at org.apache.zookeeper.server.ZooKeeperServerMain.main(ZooKeeperServerMain.java:61) at org.apache.zookeeper.server.quorum.QuorumPeerMain.initializeAndRun(QuorumPeerMain.java:125) at org.apache.zookeeper.server.quorum.QuorumPeerMain.main(QuorumPeerMain.java:79) Caused by: java.net.BindException: 地址已在使用 at sun.nio.ch.Net.bind0(Native Method)
很明显是由于端口占用。我服务器中的tomcat占用了8080端口，而zookeeper最近的版本中有个内嵌的管理控制台是通过jetty启动，也会占用8080 端口。
通过查看zookeeper的官方文档，发现有3种解决途径：
（1）.删除jetty。
（2）修改端口。
修改方法的方法有两种，一种是在启动脚本中增加 -Dzookeeper.admin.serverPort=你的端口号.一种是在zoo.cfg中增加admin.serverPort=没有被占用的端口号
（3）停用这个服务，在启动脚本中增加"-Dzookeeper.admin.enableServer=false"
在zoo.cfg中添加配置admin.serverPort=2182
修改后的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=/tmp/zookeeper dataDir=/usr/local/hadoop/zookeeper-3.4.9/data dataLogDir=/usr/local/hadoop/zookeeper-3.4.9/logs # the port at which the clients will connect clientPort=2181 admin.serverPort=2182 # the maximum number of client connections. # increase this if you need to handle more clients #maxClientCnxns=60 "zoo.cfg" 33L, 1045C
启动：
[root@localhost hadoop]# zkServer.sh start ZooKeeper JMX enabled by default Using config: /usr/local/hadoop/zookeeper/bin/../conf/zoo.cfg Starting zookeeper ... already running as process 6664. [root@localhost hadoop]# zkServer bash: zkServer: 未找到命令... [root@localhost hadoop]# zkServer.sh --version ZooKeeper JMX enabled by default Using config: /usr/local/hadoop/zookeeper/bin/../conf/zoo.cfg Usage: /usr/local/hadoop/zookeeper//bin/zkServer.sh [--config <conf-dir>] {start|start-foreground|stop|restart|status|print-cmd} [root@localhost hadoop]# zkServer.sh status ZooKeeper JMX enabled by default Using config: /usr/local/hadoop/zookeeper/bin/../conf/zoo.cfg Client port found: 2181. Client address: localhost. Mode: standalone
http://blog.csdn.net/cg_perfect/article/details/53053060
http://www.procedurego.com/article/58182.html
http://www.cnblogs.com/hapday/p/5617730.html
http://m.blog.csdn.net/article/details?id=52313834
http://jingyan.baidu.com/article/fec7a1e5136c571190b4e720.html
