一、java環境安裝
1.下載jdk
去jdk下載地址下載或者在服務器中用命令下載
wget --no-check-certificate --no-cookies --header "Cookie: oraclelicense=accept-securebackup-cookie" https://download.oracle.com/otn-pub/java/jdk/8u191-b12/2787e4a523244c269598db4e85c51e0c/jdk-8u191-linux-x64.tar.gz
注意，以上jdk-8u191-linux-x64.tar.gz的地址是會變的，所以下載地址需要替換成自己的。
2.安裝
創建目錄
cd /usr/local/
mkdir java
cd java
接着把安裝包上傳到java文件夾中,解壓
tar zxvf jdk-8u191-linux-x64.tar.gz
配置環境變量
vi /etc/profile
在文件的末尾輸入
export JAVA_HOME=/usr/local/java/jdk1.8.0_191
export PATH=$PATH:$JAVA_HOME/bin
這里注意自己的是不是jdk1.8.0_191
使環境變量在當前bash中生效
source /etc/profile
二、zookeeper安裝
1.下載
zookeeper下載地址下載安裝包
或者命令下載
cd /usr/local mkdir zookeeper cd zookeeper wget https://mirrors.tuna.tsinghua.edu.cn/apache/zookeeper/zookeeper-3.4.13/zookeeper-3.4.13.tar.gz
tar zxvf zookeeper-3.4.13.tar.gz
2.配置
創建data文件夾，打開配置文件
cd zookeeper-3.4.13
mkdir data
cd conf mv zoo_sample.cfg zoo.cfg vi 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=/usr/local/zookeeper/zookeeper-1/data dataLogDir=/usr/local/zookeeper/zookeeper-1/log # 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 server.1=47.105.232.148:2888:3888 server.2=47.105.232.148:2889:3889 server.3=47.105.232.148:2890:3890 # # 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
quorumListenOnAllIPs=true
以上紅色的需要注意，因為我用的是一台服務器，所以三個zookeeper這里配置應該不同，不然會沖突，黃色部分也要確保 server.1、server.2和server.3端口不沖突，如果是三台服務器的話就不需要了。
這里還需要注意的是，如果是在雲服務器上部署的，需要配置quorumListenOnAllIPs=true，用以監聽所有網卡，這個和雲服務器的一些虛擬技術有關，否則的話會拋異常
[myid:0] - ERROR [/47.94.204.115:3888:QuorumCnxManager$Listener@763] - Exception while listening java.net.BindException: 無法指定被請求的地址 (Bind failed) at java.net.PlainSocketImpl.socketBind(Native Method) at java.net.AbstractPlainSocketImpl.bind(AbstractPlainSocketImpl.java:387) at java.net.ServerSocket.bind(ServerSocket.java:375) at java.net.ServerSocket.bind(ServerSocket.java:329) at org.apache.zookeeper.server.quorum.QuorumCnxManager$Listener.run(QuorumCnxManager.java:742)
另外這里如果想配置java的一些參數的話，可以在conf目錄下創建java.env ,例如我這想修改一下java占用的內存為100m
# heap size MUST be modified according to cluster environment export JVMFLAGS="-Xms100m -Xmx100m $JVMFLAGS"
回到zookeeper目錄下
cp -r zookeeper-3.4.13/ zookeeper-1 cp -r zookeeper-3.4.13/ zookeeper-2 cp -r zookeeper-3.4.13/ zookeeper-3
接着依次修改配置文件中 dataDir dataLogDir clientPort
最后記得創建各自的myid
echo "1" > zookeeper-1/data/myid echo "2" > zookeeper-2/data/myid echo "3" > zookeeper-4/data/myid
依次啟動
./zookeeper-1/bin/zkServer.sh start ./zookeeper-2/bin/zkServer.sh start ./zookeeper-3/bin/zkServer.sh start
查看是否成功
這個是顯示失敗了，這里可能是配置文件出錯或者有什么防火牆
我這里是因為雲主機的安全組給擋住了
修改好之后先關閉
./zookeeper-1/bin/zkServer.sh stop ./zookeeper-2/bin/zkServer.sh stop ./zookeeper-3/bin/zkServer.sh stop
再次啟動，成功
