在cdh中如何管理zookeeper并查看zk状态的命令总结

注意：如果未初始化数据目录，则无法启动ZooKeeper服务器。
//在生产环境中，您应该将ZooKeeper部署为具有奇数个服务器的集合。只要集合中的大多数服务器可用，ZooKeeper服务就可用。建议的最小集合大小是三个ZooKeeper服务器，Cloudera建议每个服务器在单独的计算机上运行。此外，如果可能，ZooKeeper服务器进程应该有自己的专用磁盘存储。

//查看zk的状态

[root@hadoop-205-107 opt]# echo "stat" |nc 192.168.205.107 2181Zookeeper version: 3.4.5-cdh6.9.2--1, built on 04/04/2017 08:43 GMTClients: /192.168.205.107:35132[1](queued=0,recved=424,sent=424) /192.168.205.107:45317[0](queued=0,recved=1,sent=0) /192.168.205.107:35125[1](queued=0,recved=879,sent=879) /192.168.205.107:35227[1](queued=0,recved=6576,sent=6576) /192.168.205.107:35133[1](queued=0,recved=449,sent=449) /192.168.205.107:35075[1](queued=0,recved=508,sent=510) /192.168.205.107:35100[1](queued=0,recved=432,sent=432) /192.168.205.107:35083[1](queued=0,recved=2404,sent=2441)Latency min/avg/max: 0/0/231Received: 15265Sent: 15579Connections: 8Outstanding: 0Zxid: 0x7faMode: standaloneNode count: 44[root@hadoop-205-107 opt]# echo "stat" |nc 192.168.205.107 2181|grep ModeMode: standalone[root@hadoop-205-107 opt]# /opt/cloudera/parcels/CDH-5.9.2-1.cdh6.9.2.p0.3/lib/zookeeper/bin/zkServer.sh statusJMX enabled by defaultUsing config: /opt/cloudera/parcels/CDH-5.9.2-1.cdh6.9.2.p0.3/lib/zookeeper/bin/../conf/zoo.cfgMode: standalone[root@hadoop-205-107 opt]# telnet 192.168.205.107 2181Trying 192.168.205.107...Connected to 192.168.205.107.Escape character is '^]'.stat   //手动输入Zookeeper version: 3.4.5-cdh6.9.2--1, built on 04/04/2017 08:43 GMTClients: /192.168.205.107:35132[1](queued=0,recved=445,sent=445) /192.168.205.107:35125[1](queued=0,recved=912,sent=912) /192.168.205.107:35227[1](queued=0,recved=7233,sent=7233) /192.168.205.107:35133[1](queued=0,recved=470,sent=470) /192.168.205.107:45868[0](queued=0,recved=1,sent=0) /192.168.205.107:35075[1](queued=0,recved=529,sent=531) /192.168.205.107:35100[1](queued=0,recved=453,sent=453) /192.168.205.107:35083[1](queued=0,recved=2447,sent=2484)Latency min/avg/max: 0/0/231Received: 16267Sent: 16595Connections: 8Outstanding: 0Zxid: 0x855Mode: standaloneNode count: 44Connection closed by foreign host.

参考链接：https://www.cloudera.com/documentation/enterprise/5-13-x/topics/cm_mc_zookeeper_service.html#xd_583c10bfdbd326ba--6eed2fb8-14349d04bee--7f1a