go任務調度4（etcd安裝和基本使用）
阿新 • • 發佈：2019-04-20
chang 顯示 基本 控制 3.3 etcd inux 任務調度 str 下載，解壓，進入目錄，運行：
[[email protected] etcd-v3.3.12-linux-amd64]# ./etcd --listen-client-urls ‘http://0.0.0.0:2379‘ --advertise-client-urls ‘http://0.0.0.0:2379‘
(本地etcd的端口)
etcd控制工具：
[[email protected] etcd-v3.3.12-linux-amd64]# ETCDCTL_API=3 ./etcdctl
(前面需要一個環境變量ETCDCTL_API=3)
put、get、del、--prefix：
[[email protected] etcd-v3.3.12-linux-amd64]# ETCDCTL_API=3 ./etcdctl put "name" "張三"
OK
[[email protected] etcd-v3.3.12-linux-amd64]# ETCDCTL_API=3 ./etcdctl get "name"
name
張三
[[email protected] etcd-v3.3.12-linux-amd64]# ETCDCTL_API=3 ./etcdctl del "name"
1
[[email protected] etcd-v3.3.12-linux-amd64]# ETCDCTL_API=3 ./etcdctl get "name"
[[email protected] etcd-v3.3.12-linux-amd64]# ETCDCTL_API=3 ./etcdctl put "/cron/jobs/job1" "{...json}"OK
[[email protected] etcd-v3.3.12-linux-amd64]# ETCDCTL_API=3 ./etcdctl put "/cron/jobs/job2" "{...json}"
OK
[[email protected] etcd-v3.3.12-linux-amd64]# ETCDCTL_API=3 ./etcdctl get "/cron/jobs/job2"
/cron/jobs/job2
{...json}
[[email protected] etcd-v3.3.12-linux-amd64]# ETCDCTL_API=3 ./etcdctl get "/cron/jobs/job1"/cron/jobs/job1
{...json}
[[email protected] etcd-v3.3.12-linux-amd64]# ETCDCTL_API=3 ./etcdctl get "/cron/jobs/" --prefix
/cron/jobs/job1
{...json}
/cron/jobs/job2
{...json}
[[email protected] etcd-v3.3.12-linux-amd64]#
(帶上--prefix表示get以/cron/jobs/開頭的)
watch監聽k-v的變化：
[[email protected] etcd-v3.3.12-linux-amd64]# ETCDCTL_API=3 ./etcdctl watch "/cron/jobs/" --prefix
PUT
/cron/jobs/job2
{...changed}
DELETE
/cron/jobs/job2
(如果watch後，其他窗口改變/刪除等/cron/jobs/job2的值，會顯示出來。etcd很適合做配置的分發，可以實時感受到變化)
go任務調度4（etcd安裝和基本使用）