[
https://issues.apache.org/jira/browse/HADOOP-11506?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14290396#comment-14290396
]
Gera Shegalov commented on HADOOP-11506:
----------------------------------------
[~alexlevenson], yes it makes sense. This is a forward-port from 2.4 where the
HashSet allocation problem does not exist as you can see in our internal RB.
> Configuration.get() is unnecessarily slow
> -----------------------------------------
>
> Key: HADOOP-11506
> URL: https://issues.apache.org/jira/browse/HADOOP-11506
> Project: Hadoop Common
> Issue Type: Bug
> Reporter: Dmitriy V. Ryaboy
> Assignee: Gera Shegalov
> Attachments: HADOOP-11506.001.patch
>
>
> Profiling several large Hadoop jobs, we discovered that a surprising amount
> of time was spent inside Configuration.get, more specifically, in regex
> matching caused by the substituteVars call.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
