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https://issues.apache.org/jira/browse/CURATOR-57?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13778861#comment-13778861
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Jordan Zimmerman commented on CURATOR-57:
-----------------------------------------
PathChildrenCache works this way already. The issue is how you determine when
to send messages? In a dynamic ZK ensemble nodes are being changed all the
time. You could send messages after each getChildren() batch is processed but
this is arbitrary. Also, in order to truly ensure ordering you'd likely need to
re-query ZooKeeper inside of the Watchers which is an anti-pattern (see
https://cwiki.apache.org/confluence/display/CURATOR/TN1).
> Event order lost with PathChildrenCache
> ---------------------------------------
>
> Key: CURATOR-57
> URL: https://issues.apache.org/jira/browse/CURATOR-57
> Project: Apache Curator
> Issue Type: Bug
> Components: Recipes
> Affects Versions: 2.0.1-incubating
> Environment: Ubuntu 10.10
> Reporter: Benjamin Jaton
> Fix For: awaiting-response
>
> Attachments: Test.java
>
>
> I am attaching a simple test to demonstrate the problem:
> Single threaded 'for' loop that creates children 0 to N, the events are not
> received in order.
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