etcd键值操作

etcd 删除键值

1、查询所有键值

curl http://10.0.2.255:9001/v2/keys/services/?recursive=true

2、删除键值

curl http://10.0.22.39:9001/v2/keys/key?recursive=true -XDELETE

如查询到的key是：/services/clock/0/10611/255:10611
curl http://10.0.22.39:9001/v2/keys/services/clock/0/10611/255:10611/?recursive=true -XDELETE

3、使用etcdctl命令：

• 使用etcdctlv3的版本时，需设置环境变量ETCDCTL_API=3

查询版本：etcdctl version

export ETCDCTL_API=3

或者在`/etc/profile`文件中添加环境变量
vi /etc/profile
...
ETCDCTL_API=3
...
source /etc/profile

指定etcd集群：
HOST_1=10.240.0.17
HOST_2=10.240.0.18
HOST_3=10.240.0.19
ENDPOINTS=$HOST_1:2379,$HOST_2:2379,$HOST_3:2379
etcdctl --endpoints=$ENDPOINTS member list

查询集群状态
etcdctl endpoint status 、etcdctl endpoint health

增：etcdctl --endpoints=$ENDPOINTS put foo "Hello World!"
查：etcdctl --endpoints=$ENDPOINTS get foo
删：etcdctl --endpoints=$ENDPOINTS del foo