Watcher事件型別（一）
阿新 • • 發佈：2018-11-01
- 建立父節點觸發：NodeCreated
[zk: localhost:2181(CONNECTED) 16] ls / [zookeeper] [zk: localhost:2181(CONNECTED) 17] stat /imooc watch Node does not exist: /imooc [zk: localhost:2181(CONNECTED) 18] create /imooc [zk: localhost:2181(CONNECTED) 19] ls / [zookeeper] [zk: localhost:2181(CONNECTED) 20] create /imooc 123 WATCHER:: WatchedEvent state:SyncConnected type:NodeCreated path:/imooc Created /imooc
- 修改父節點資料觸發：NodeDataChanged
[zk: localhost:2181(CONNECTED) 22] get /imooc watch 456 cZxid = 0x200000005 ctime = Tue Oct 23 11:10:28 CST 2018 mZxid = 0x200000006 mtime = Tue Oct 23 11:11:45 CST 2018 pZxid = 0x200000005 cversion = 0 dataVersion = 1 aclVersion = 0 ephemeralOwner = 0x0 dataLength = 3 numChildren = 0 [zk: localhost:2181(CONNECTED) 23] set /imooc 789 WATCHER:: WatchedEvent state:SyncConnected type:NodeDataChanged path:/imooc cZxid = 0x200000005 ctime = Tue Oct 23 11:10:28 CST 2018 mZxid = 0x200000007 mtime = Tue Oct 23 11:12:14 CST 2018 pZxid = 0x200000005 cversion = 0 dataVersion = 2 aclVersion = 0 ephemeralOwner = 0x0 dataLength = 3 numChildren = 0
- 刪除父節點觸發：NodeDeleted
[zk: localhost:2181(CONNECTED) 24] get /imooc watch 789 cZxid = 0x200000005 ctime = Tue Oct 23 11:10:28 CST 2018 mZxid = 0x200000007 mtime = Tue Oct 23 11:12:14 CST 2018 pZxid = 0x200000005 cversion = 0 dataVersion = 2 aclVersion = 0 ephemeralOwner = 0x0 dataLength = 3 numChildren = 0 [zk: localhost:2181(CONNECTED) 25] delete /imooc WATCHER:: WatchedEvent state:SyncConnected type:NodeDeleted path:/imooc