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https://issues.apache.org/jira/browse/HADOOP-14240?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15941548#comment-15941548
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Jonathan Eagles commented on HADOOP-14240:
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The majority of this optimization relies on the direct return value
construction since it saves the construction cost of ArrayList and conversion
from ArrayList<String> to String[]
> Configuration#get return value optimization
> -------------------------------------------
>
> Key: HADOOP-14240
> URL: https://issues.apache.org/jira/browse/HADOOP-14240
> Project: Hadoop Common
> Issue Type: Improvement
> Reporter: Jonathan Eagles
> Assignee: Jonathan Eagles
> Attachments: HADOOP-14240.1.patch, HADOOP-14240.2.patch
>
>
> The string array return value can be more efficiently determined and some
> general redundancies can be removed to improve the speed for
> Configuration.get.
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