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https://issues.apache.org/jira/browse/ZOOKEEPER-472?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12777286#action_12777286
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Erik Holstad commented on ZOOKEEPER-472:
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@Mahadev
I totally agree that it is hard to follow a patch when there is a lot of "crap"
changes in there. This was not my intention but had to do with the settings
that I used, from the beginning and some un clearness on the website about
intentations that has since been fixed.
> Making DataNode not instantiate a HashMap when the node is ephmeral
> -------------------------------------------------------------------
>
> Key: ZOOKEEPER-472
> URL: https://issues.apache.org/jira/browse/ZOOKEEPER-472
> Project: Zookeeper
> Issue Type: Improvement
> Components: server
> Affects Versions: 3.1.1, 3.2.0
> Reporter: Erik Holstad
> Assignee: Erik Holstad
> Priority: Minor
> Fix For: 3.3.0
>
> Attachments: zookeeper-472.patch, zookeeper-472.patch,
> zookeeper-472.patch, zookeeper-472.patch, zookeeper-472.patch,
> zookeeper-472.patch
>
>
> Looking at the code, there is an overhead of a HashSet object for that nodes
> children, even though the node might be an ephmeral node and cannot have
> children.
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