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From Daniel Gómez Ferro (Commented) (JIRA) <j...@apache.org>
Subject [jira] [Commented] (ZOOKEEPER-442) need a way to remove watches that are no longer of interest
Date Mon, 24 Oct 2011 09:13:32 GMT

    [ https://issues.apache.org/jira/browse/ZOOKEEPER-442?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13133915#comment-13133915
] 

Daniel Gómez Ferro commented on ZOOKEEPER-442:
----------------------------------------------

How should we deal with the asynchronous version of the call? I see three options:
* Don't provide an async version.
* Remove the Watcher parameter, effectively removing all watches on the given znode.
* Find a way to trigger the callback directly from the client (could also help ZOOKEEPER-847,
where we want to throw an exception and invoke the callback)
                
> need a way to remove watches that are no longer of interest
> -----------------------------------------------------------
>
>                 Key: ZOOKEEPER-442
>                 URL: https://issues.apache.org/jira/browse/ZOOKEEPER-442
>             Project: ZooKeeper
>          Issue Type: Improvement
>            Reporter: Benjamin Reed
>            Priority: Critical
>         Attachments: ZOOKEEPER-442.patch
>
>
> currently the only way a watch cleared is to trigger it. we need a way to enumerate the
outstanding watch objects, find watch events the objects are watching for, and remove interests
in an event.

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