Summary of common commands for building ZooKeeper3.4 middleware under centos7
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1. Download and decompress 1. Introduction to Zookeeper As a distributed service framework, Zookeeper is mainly used to solve the consistency problem of application systems in distributed clusters. It can provide data storage based on a directory node tree similar to the file system. However, Zookeeper is not used to store data specifically. Its main function is to maintain and monitor the status changes of the data you store. By monitoring the changes in these data states, data-based cluster management can be achieved. 2. Download Environment Version centos7 zookeeper 3.4.14 [root@localhost mysoft]$ cd /usr/local/mysoft/ [root@localhost mysoft]$ wget https://mirrors.tuna.tsinghua.edu.cn/apache/zookeeper/zookeeper-3.4.14/zookeeper-3.4.14.tar.gz [root@localhost mysoft]# tar -zxvf zookeeper-3.4.14.tar.gz [root@localhost mysoft]# mv zookeeper-3.4.14 zookeeper3.4 2. Modify the configuration file 1. Data and log directories [root@localhost /]# mkdir -p data/log/zkp1.log [root@localhost /]# mkdir -p data/zkpdata/zkp1 2. Modify the configuration [root@localhost mysoft]# cd zookeeper3.4/conf/ [root@localhost conf]# cp zoo_sample.cfg zoo.cfg [root@localhost conf]# vim zoo.cfg # Modify the following two contents, the other default dataDir=/data/zkpdata/zkp1 dataLogDir=/data/log/zkp1.log 3. Configuration file description 1) tickTime 3. Start operation 1. Start the server [root@localhost bin]# pwd /usr/local/mysoft/zookeeper3.4/bin [root@localhost bin]# /usr/local/mysoft/zookeeper3.4/bin/zkServer.sh start /usr/local/mysoft/zookeeper3.4/conf/zoo.cfg ZooKeeper JMX enabled by default Using config: /usr/local/mysoft/zookeeper3.4/conf/zoo.cfg Starting zookeeper ... STARTED [root@localhost bin]# ps -aux |grep zookeeper 2. Start the client [root@localhost /]# cd /usr/local/mysoft/zookeeper3.4/bin/ [root@localhost bin]# ./zkCli.sh Connecting to localhost:2181 4. Common operation commands ## Create a node [zk: localhost:2181(CONNECTED) 2] create /cicada cicada-smile1 Created /cicada [zk: localhost:2181(CONNECTED) 8] create /cicada2 cicada-smile2 Created /cicada2 [zk: localhost:2181(CONNECTED) 4] get /cicada cicada-smile1 ## View the directory [zk: localhost:2181(CONNECTED) 5] ls / [zookeeper, cicada, cicada2] ## View the specified directory [zk: localhost:2181(CONNECTED) 17] ls / zookeeper [com.ptp.user.service.UserService] ## Delete node [zk: localhost:2181(CONNECTED) 10] delete /cicada ## Delete all directories [zk: localhost:2181(CONNECTED) 18] rmr /cicada2 [zk: localhost:2181(CONNECTED) 19] ls /cicada2 Node does not exist: /cicada2 ## View the remaining nodes [zk: localhost:2181(CONNECTED) 13] ls / [zookeeper] 5. Source code address
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