dcos上zookeeper集群搭建

参考地址：/dslcode/blog/1944775

1.在docs上构建zookeeper服务的json脚本

{"id": "/component-test-space/env-test/msg-queue","groups": [{"id": "/component-test-space/env-test/msg-queue/nodes","apps": [{"id": "/component-test-space/env-test/msg-queue/nodes/cluster-zk1","cpus": 0.5,"mem": 1024,"container": {"type": "DOCKER","docker": {"image": "zookeeper:3.4.13","network": "BRIDGE","portMappings": [{"containerPort": 2181,"hostPort": 21817,"labels": {"VIP_1": "/cluster-test-msg-zk:21817"}}, {"containerPort": 2888,"hostPort": 2887}, {"containerPort": 3888,"hostPort": 3887}]},"volumes": [{"containerPath": "/data","hostPath": "/data/test-cluster/zookeeper/test-zk-cluster/data","mode": "RW"}, {"containerPath": "/datalog","hostPath": "/data/test-cluster/zookeeper/test-zk-cluster/datalog","mode": "RW"}, {"containerPath": "/logs","hostPath": "/data/test-cluster/zookeeper/test-zk-cluster/logs","mode": "RW"}, {"containerPath": "/conf","hostPath": "/data/test-cluster/zookeeper/test-zk-cluster/conf","mode": "RW"}, {"containerPath": "/etc/localtime","hostPath": "/etc/localtime","mode": "RO"}]},"env": {"TZ": "Asia/Shanghai","ZOO_MY_ID": "1","ZOO_SERVERS": "server.1=0.0.0.0:2888:3888 server.2=xxx.xx.xx.66:2887:3887 server.3=xxx.xx.xx.64:2887:3887"},"constraints": [["hostname", "IS", "xxx.xx.xx.65"]]}, {"id": "/component-test-space/env-test/msg-queue/nodes/cluster-zk2","cpus": 1,"mem": 1024,"container": {"type": "DOCKER","docker": {"image": "zookeeper:3.4.13","network": "BRIDGE","portMappings": [{"containerPort": 2181,"hostPort": 21817,"labels": {"VIP_1": "/cluster-test-msg-zk:21817"}}, {"containerPort": 2888,"hostPort": 2887}, {"containerPort": 3888,"hostPort": 3887}]},"volumes": [{"containerPath": "/data","hostPath": "/data/test-cluster/zookeeper/test-zk-cluster/data","mode": "RW"}, {"containerPath": "/datalog","hostPath": "/data/test-cluster/zookeeper/test-zk-cluster/datalog","mode": "RW"}, {"containerPath": "/logs","hostPath": "/data/test-cluster/zookeeper/test-zk-cluster/logs","mode": "RW"}, {"containerPath": "/conf","hostPath": "/data/test-cluster/zookeeper/test-zk-cluster/conf","mode": "RW"}, {"containerPath": "/etc/localtime","hostPath": "/etc/localtime","mode": "RO"}]},"env": {"TZ": "Asia/Shanghai","ZOO_MY_ID": "2","ZOO_SERVERS": "server.1=xxx.xx.xx.65:2887:3887 server.2=0.0.0.0:2888:3888 server.3=xxx.xx.xx.64:2887:3887"},"constraints": [["hostname", "IS", "xxx.xx.xx.66"]]}, {"id": "/component-test-space/env-test/msg-queue/nodes/cluster-zk3","cpus": 1,"mem": 1024,"container": {"type": "DOCKER","docker": {"image": "zookeeper:3.4.13","network": "BRIDGE","portMappings": [{"containerPort": 2181,"hostPort": 21817,"labels": {"VIP_1": "/cluster-test-msg-zk:21817"}}, {"containerPort": 2888,"hostPort": 2887}, {"containerPort": 3888,"hostPort": 3887}]},"volumes": [{"containerPath": "/data","hostPath": "/data/test-cluster/zookeeper/test-zk-cluster/data","mode": "RW"}, {"containerPath": "/datalog","hostPath": "/data/test-cluster/zookeeper/test-zk-cluster/datalog","mode": "RW"}, {"containerPath": "/logs","hostPath": "/data/test-cluster/zookeeper/test-zk-cluster/logs","mode": "RW"}, {"containerPath": "/conf","hostPath": "/data/test-cluster/zookeeper/test-zk-cluster/conf","mode": "RW"}, {"containerPath": "/etc/localtime","hostPath": "/etc/localtime","mode": "RO"}]},"env": {"TZ": "Asia/Shanghai","ZOO_MY_ID": "3","ZOO_SERVERS": "server.1=xxx.xx.xx.65:2887:3887 server.2=xxx.xx.xx.66:2887:3887 server.3=0.0.0.0:2888:3888"},"constraints": [["hostname", "IS", "xxx.xx.xx.64"]]}]}]}

2.执行之后，

最终结果：

主节点66：

bash-4.4# zkServer.sh statusZooKeeper JMX enabled by defaultUsing config: /conf/zoo.cfgMode: leader

从节点64：

bash-4.4# zkServer.sh statusZooKeeper JMX enabled by defaultUsing config: /conf/zoo.cfgMode: follower

从节点65：

bash-4.4# zkServer.sh statusZooKeeper JMX enabled by defaultUsing config: /conf/zoo.cfgMode: follower

3.常见命令

3.1 常用命令：

zkServer.sh status #查看zookeeper集群状态zkCli.sh -server xxx.xx.xx.64:21817 # 使用zookeeper客户端连接zk的服务器，用来查看相应的node信息；

4.常见问题

注意使用zookeeper的版本是: zookeeper:3.4.13,之前使用的zookeeper版本是3.5.5版本，导致各种问题错误，（在使用网上现成的例子的时候，需要对应的版本，否则导致出现各种异常情况）；

Will not attempt to authenticate using SASL (unknown error)

该问题是无法有效解析出自己的IP地址和端口导致，检查IP;

3.注意使用容器的搭建方式与普通的搭建方式有很大的不同；

server.1=zookeeper_1:2888:3888server.2=zookeeper_2:2888:3888server.3=zookeeper_3:2888:3888

在172.19.32.64上使用docker的方式：

server.1=xxx.xx.xx.65:2887:3887server.2=0.0.0.0:2888:3888 ##此处配置的是0.0.0.0:2888:3888,当使用IP连接自身容器的时候；server.3=xxx.xx.xx.64:2887:3887