CentOS安装zookeeper

• 下载地址
  https://zookeeper.apache.org/releases.html

• 创建目录复制安装包到安装目录

[root@localhost package]# mkdir -p /snt/soft/zookeeper
[root@localhost package]# cd /snt/soft/zookeeper
[root@localhost zookeeper]# ls 
[root@localhost zookeeper]# cp /snt/soft/package/apache-zookeeper-3.6.2-bin.tar.gz .
[root@localhost zookeeper]# ls 
apache-zookeeper-3.6.2-bin.tar.gz
[root@localhost zookeeper]# tar -zxvf apache-zookeeper-3.6.2-bin.tar.gz

• 拷贝配置文件

[root@localhost apache-zookeeper-3.6.2-bin]# cd conf/
[root@localhost conf]# ls 
configuration.xsl  log4j.properties  zoo_sample.cfg
[root@localhost conf]# cp zoo_sample.cfg zoo.cfg
[root@localhost conf]# ls 
configuration.xsl  log4j.properties  zoo.cfg  zoo_sample.cfg

• 配置

mkdir -p /snt/data/zookeeper
[snt@JAVA-DEVELOPMENT conf]$ vim zoo.cfg
dataDir=/snt/data/zookeeper

• 启动

[root@localhost apache-zookeeper-3.6.2-bin]# cd bin/
[root@localhost bin]# ls 
README.txt    zkCli.sh   zkServer.cmd            zkSnapShotToolkit.cmd  zkTxnLogToolkit.sh
zkCleanup.sh  zkEnv.cmd  zkServer-initialize.sh  zkSnapShotToolkit.sh
zkCli.cmd     zkEnv.sh   zkServer.sh             zkTxnLogToolkit.cmd
[root@localhost bin]# ./zkServer.sh start
ZooKeeper JMX enabled by default
Using config: /snt/soft/zookeeper/apache-zookeeper-3.6.2-bin/bin/../conf/zoo.cfg
Starting zookeeper ... STARTED

• 查看状态

[root@localhost bin]# ./zkServer.sh status
ZooKeeper JMX enabled by default
Using config: /snt/soft/zookeeper/apache-zookeeper-3.6.2-bin/bin/../conf/zoo.cfg
Client port found: 2181. Client address: localhost. Client SSL: false.
Mode: standalone

故障
[外链图片转存失败,源站可能有防盗链机制,建议将图片保存下来直接上传(img-KTxZttZP-1634633625269)(http://192.168.10.61:9001/server/…/Public/Uploads/2021-04-07/606d21df8d117.png)]
上面的结果看似已经启动了，但是，我们再用命令zkServer.sh status查看状态时，却出现了下面的信息：
报了错：Error contacting service. It is probably not running.

这说明并没有启动成功！
问题分析
我们可以通过bin目录下面的zookeeper.out来查看问题原因
[外链图片转存失败,源站可能有防盗链机制,建议将图片保存下来直接上传(img-gkZSx6NA-1634633625272)(http://192.168.10.61:9001/server/…/Public/Uploads/2021-04-07/606d222e3d741.png)]
[外链图片转存失败,源站可能有防盗链机制,建议将图片保存下来直接上传(img-5Ce108sj-1634633625275)(http://192.168.10.61:9001/server/…/Public/Uploads/2021-04-07/606d2241aa448.png)]
java未安装
故障排查参考文档：
https://blog.youkuaiyun.com/qq_26230421/article/details/80700912

• 参考
  https://blog.youkuaiyun.com/milhua/article/details/78931672
  https://www.cnblogs.com/jimcsharp/p/8358271.html