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https://issues.apache.org/jira/browse/ZOOKEEPER-472?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12765709#action_12765709
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Erik Holstad commented on ZOOKEEPER-472:
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@ Patrik , well good thing you cannot take me in the ear and sit me down :)
Might want to change the instructions on
http://wiki.apache.org/hadoop/ZooKeeper/HowToContribute though, to not make
people confused? Remember taking a look there when I started and saw the code.
Erik
> 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-v2.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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