[Zookeeper-developer] [ zookeeper-Bugs-1981340 ] Child watches are not triggered when the node is deleted

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Bugs item #1981340, was opened at 2008-06-01 08:05
Message generated for change (Settings changed) made by breed
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Category: None
>Group: 3.0.0
Status: Open
Resolution: None
Priority: 5
Private: No
Submitted By: Benjamin Reed (breed)
Assigned to: Nobody/Anonymous (nobody)
Summary: Child watches are not triggered when the node is deleted

Initial Comment:
If a client sets a watch on "/foo" with a getChildren("/foo" ...) and "/foo" gets deleted, no watch event is triggered. (Ever.)

It could be argued that this is correct behavior since the children did not change, but it can lead to confusion since "/foo" could be recreated and children added and still the watch would not get triggered. (We trace watches by znode instance and deleting and creating "/foo" causes a new znode instance.)

The correct behavior should be that when a znode is removed there are three events triggered: parent child watches, znode data watches, and znode child watches.

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You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=1008544&aid=1981340&group_id=209147