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Posted to dev@zookeeper.apache.org by "Patrick Hunt (JIRA)" <ji...@apache.org> on 2009/10/14 20:25:31 UTC
[jira] Commented: (ZOOKEEPER-472) Making DataNode not instantiate a
HashMap when the node is ephmeral
[ https://issues.apache.org/jira/browse/ZOOKEEPER-472?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12765676#action_12765676 ]
Patrick Hunt commented on ZOOKEEPER-472:
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Hi, what's the status on this JIRA? I'd like to get it reviewed/committed if it's ready. (you need to "submit patch", I would do it, but I can't as you've marked it as "in progress")
we use 4 spaces, for some reason hadoop mr/hdfs uses 2 but we use 4 (you should see this used throughout our code)
Thanks!
> 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
>
>
> 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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