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https://issues.apache.org/jira/browse/ZOOKEEPER-1312?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13161961#comment-13161961
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Patrick Hunt commented on ZOOKEEPER-1312:
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bq. Since a node can't change names as soon as you acquire the lock on the
parent DataNode no children can be added or removed.
I think you'd have to acquire a lock on the child in order to guarantee that
the stat of the child would be processed atomically, given you want to include
that in the response. So not just protecting against update of the parent's
child list, but also protect against any changes in the children themselves.
> Add a "getChildrenWithStat" operation
> -------------------------------------
>
> Key: ZOOKEEPER-1312
> URL: https://issues.apache.org/jira/browse/ZOOKEEPER-1312
> Project: ZooKeeper
> Issue Type: New Feature
> Reporter: Daniel Lord
> Labels: newbie
>
> It would be extremely useful to be able to have a "getChildrenWithStat"
> method. This method would behave exactly the same as getChildren but in
> addition to returning the list of all child znode names it would also return
> a Stat for each child. I'm sure there are quite a few use cases for this but
> it could save a lot of extra reads for my application.
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