zookeeper安裝及部署

安裝及部署

一. 單機安裝、配置

1、下載zookeeper二進制安裝包

• 下載

curl -L -O http://apache.fayea.com/zookeeper/stable/zookeeper-3.4.6.tar.gz

• 解壓

tar zxvf zookeeper-3.4.6.tar.gz

2、設置環境變量

ZOOKEEPER_HOME關鍵字為添加的配置項

# /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 "$EUID" ]; then
        # ksh workaround
        EUID=`id -u`
        UID=`id -ru`
    fi
    USER="`id -un`"
    LOGNAME=$USER
    MAIL="/var/spool/mail/$USER"
fi

# Path manipulation
if [ "$EUID" = "0" ]; then
    pathmunge /sbin
    pathmunge /usr/sbin
    pathmunge /usr/local/sbin
else
    pathmunge /usr/local/sbin after
    pathmunge /usr/sbin after
    pathmunge /sbin after
fi

HOSTNAME=`/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 ] && [ "`id -gn`" = "`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 2>&1
        fi
    fi
done

unset i
unset pathmunge

JAVA_HOME=/usr/java/jdk1.7.0_51
#zookeeper環境變量設置
ZOOKEEPER_HOME=/usr/local/logdeal/zookeeper-3.4.6
PATH=$JAVA_HOME/bin:$ZOOKEEPER_HOME/bin:$PATH
CLASSPATH=.:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jar:$ZOOKEEPER_HOME/lib:
TOMCAT_HOME=/usr/local/tomcat7
CATALINA_HOME=/usr/local/tomcat7
export ZOOKEEPER_HOME
export JAVA_HOME
export PATH
export CLASSPATH
export TOMCAT_HOME
export CATALINA_HOME
export PKG_CONFIG_PATH=/usr/local/lib/pkgconfig:$PKG_CONFIG_PATH

3、配置

配置文件存放在$ZOOKEEPER_HOME/conf/目錄下，將zoo_sample.cfd文件名稱改為zoo.cfg, 缺省的配置內容如下：

# 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=/tmp/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

• 配置說明：

tickTime：這個時間是作為 Zookeeper 服務器之間或客戶端與服務器之間維持心跳的時間間隔，也就是每個 tickTime 時間就會發送一個心跳。

dataDir：顧名思義就是 Zookeeper 保存數據的目錄，默認情況下，Zookeeper 將寫數據的日志文件也保存在這個目錄里。

dataLogDir: log目錄, 同樣可以是任意目錄. 如果沒有設置該參數, 將使用和dataDir相同的設置。

clientPort：這個端口就是客戶端連接 Zookeeper 服務器的端口，Zookeeper 會監聽這個端口，接受客戶端的訪問請求。

4、啟動Zookeeper

當這些配置項配置好后，你現在就可以啟動zookeeper了：

./zkServer.sh start #啟動
netstat -tunlp|grep 2181 #查看zookeeper端口
./zkServer.sh stop #停止

二. 集群安裝、配置

集群安裝與配置暫時省略，下次在作補充。

• 參考資料：

zookeeper入門（1）在單機上實現ZooKeeper偽機群/偽集群部署

zookeeper單機偽集群配置

Zookeeper 安裝和配置

zookeeper原理（轉）