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https://issues.apache.org/jira/browse/ZOOKEEPER-3281?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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maoling resolved ZOOKEEPER-3281.
--------------------------------
Resolution: Won't Fix
> Add a new CLI:watch
> -------------------
>
> Key: ZOOKEEPER-3281
> URL: https://issues.apache.org/jira/browse/ZOOKEEPER-3281
> Project: ZooKeeper
> Issue Type: New Feature
> Components: scripts
> Affects Versions: 3.6.0
> Reporter: maoling
> Assignee: maoling
> Priority: Major
> Labels: pull-request-available
> Time Spent: 50m
> Remaining Estimate: 0h
>
> Terminal1:t1;
> Terminal2:t2;
> PART1:
> --------------[-d] test for data change------------------------
> [t1]:
> watch -d /testwatch
> [t2]:
> set /testwatch mydata
> [t1]: result:
> WatchedEvent state:SyncConnected
> type:NodeDataChanged
> path:/testwatch
> new data:mydata
> ----------------------------------------------------------------
> [t1]:
> watch -d /testwatch
> [t2]:
> delete /testwatch
> [t1] result:
> WatchedEvent state:SyncConnected
> type:NodeDeleted
> path:/testwatch
> PART2:
> --------------[-c] test for child change------------------------
> [t1]:
> watch -c /testwatch
> [t2]
> create /testwatch/child_1 mydata
> [t1] reslut:
> WatchedEvent state:SyncConnected
> type:NodeChildrenChanged
> path:/testwatch
> new child list:[child_1]
> ----------------------------------------------------------------
> [t1]:
> watch -c /testwatch
> [t2]:
> delete /testwatch/child_1
> [t1]:
> WatchedEvent state:SyncConnected
> type:NodeChildrenChanged
> path:/testwatch
> new child list:[]
> PART3:
> ----------------[-e]test for exist watch----------------------
> [t2]:
> delete /testwatch
> [t1]:
> watch -e /testwatch
> [t2]:
> create /testwatch mydata
> [t1] result:
> WatchedEvent state:SyncConnected
> type:NodeCreated
> path:/testwatch
> ----------------------------------------------------------------
> [t1]:
> watch -e /testwatch
> [t2]:
> delete /testwatch
> WatchedEvent state:SyncConnected
> type:NodeDeleted
> path:/testwatch
> ----------------------------------------------------------------
> [t1]:
> watch -e /testwatch
> [t2]:
> set /testwatch mydata666666666
> [t1]:
> WatchedEvent state:SyncConnected
> type:NodeDataChanged
> path:/testwatch
> ----------------------------------------------------------------
> a test for watching a non-existent key
> [t1]:
> watch -d /non-existent_key
> Node does not exist: /non-existent_key
> watch -c /non-existent_key
> Node does not exist: /non-existent_key
> watch -e /non-existent_key
> [t2]:
> create /non-existent_key mydata
> [t1]:
> WatchedEvent state:SyncConnected
> type:NodeCreated
> path:/non-existent_key
> ----------------------------------------------------------------
> the test for other watchedEvent state: e.g. Disconnected
> [t1]:
> watch -c /testwatch
> #kill the zk server
> WatchedEvent state:Disconnected
> type:None
> path:null
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