Zookeeper安裝 · zookeeper

# Zookeeper單機版安裝 ### Java環境 Zookeeper安裝需要依賴Java，因此確保Java環境已經準備就緒。 ```shell java -version ``` ### Zookeeper安裝 1. 下載[Zookeeper](http://zookeeper.apache.org/releases.html)壓縮包 ```http http://zookeeper.apache.org/releases.html ``` > 以`zookeeper-3.4.14.tar.gz`為例 2. 解壓Zookeeper壓縮包 ```shell tar -zxvf zookeeper-3.4.14.tar.gz -C /usr/local/ ``` 3. 創建`data`目錄 ```shell cd /usr/local/zookeeper-3.4.14 mkdir data ``` > /usr/local/zookeeper-3.4.14/data 4. 創建配置文件 ```shell cp /usr/local/zookeeper-3.4.14/conf/zoo_sample.cfg /usr/local/zookeeper-3.4.14/conf/zoo.cfg ``` > 默認值： > > tickTime=2000 > > initLimit=10 > > syncLimit=5 > > clientPort=2181 > > dataDir=/tmp/zookeeper 修改`dataDir`的值為第3步創建的目錄`data` ```shell sed -i '/dataDir=/cdataDir=\/usr\/local\/zookeeper-3.4.14\/data' /usr/local/zookeeper-3.4.14/conf/zoo.cfg ``` ### Zookeeper啟停[服務器] ``` /usr/local/zookeeper-3.4.14/bin/zkServer.sh start ``` > ZooKeeper JMX enabled by default > > Using config: /usr/local/zookeeper-3.4.14/bin/../conf/zoo.cfg > > Starting zookeeper ... STARTED ```shell /usr/local/zookeeper-3.4.14/bin/zkServer.sh stop ``` > ZooKeeper JMX enabled by default > Using config: /usr/local/zookeeper-3.4.14/bin/../conf/zoo.cfg > Stopping zookeeper ... STOPPED ### Zookeeper啟動[客戶端] ```shell /usr/local/zookeeper-3.4.14/bin/zkCli.sh ``` > ... ... > WatchedEvent state:SyncConnected type:None path:null > [zk: localhost:2181(CONNECTED) 0] # Zookeeper集群版安裝 1. 修改`zoo.cfg`配置文件 ``` server.A=B:C:D ``` 尾部新增如上配置。A為一個節點編號，如`0`或`1`或`2`。B為節點ip地址。C為Leader選舉端口。D為數據同步端口。 ``` server.1=192.168.8.101:2888:3888 server.2=192.168.8.102:2888:3888 server.3=192.168.8.103:2888:3888 ``` ```shell echo "server.1=192.168.8.101:2888:3888" >>/usr/local/zookeeper-3.4.14/conf/zoo.cfg echo "server.2=192.168.8.102:2888:3888" >>/usr/local/zookeeper-3.4.14/conf/zoo.cfg echo "server.3=192.168.8.103:2888:3888" >>/usr/local/zookeeper-3.4.14/conf/zoo.cfg ``` 2. 創建`myid`文件在文件中鍵入A(節點編號)，如`0`或`1`或`2`，保存至參數`dataDir`指定目錄。 ```shell echo "1" >/usr/local/zookeeper-3.4.14/data/myid # 在第1臺服務器上執行 ``` ```shell echo "2" >/usr/local/zookeeper-3.4.14/data/myid # 在第2臺服務器上執行 ``` ```shell echo "3" >/usr/local/zookeeper-3.4.14/data/myid # 在第3臺服務器上執行 ``` # Zookeeper狀態和端口 ### 開放端口 ```shell firewall-cmd --add-port=2888/tcp --permanent firewall-cmd --add-port=3888/tcp --permanent firewall-cmd --add-port=2181/tcp --permanent firewall-cmd --reload firewall-cmd --list-port ``` ### 查看狀態 ```shell /usr/local/zookeeper-3.4.14/bin/zkServer.sh start # 啟動 /usr/local/zookeeper-3.4.14/bin/zkServer.sh status # 查看狀態 /usr/local/zookeeper-3.4.14/bin/zkServer.sh stop # 停止 /usr/local/zookeeper-3.4.14/bin/zkServer.sh restart # 重啟 ```