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https://issues.apache.org/jira/browse/HADOOP-11506?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14302026#comment-14302026
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Hadoop QA commented on HADOOP-11506:
------------------------------------
{color:green}+1 overall{color}. Here are the results of testing the latest
attachment
http://issues.apache.org/jira/secure/attachment/12696002/HADOOP-11506.004.patch
against trunk revision 5f9a0dd.
{color:green}+1 @author{color}. The patch does not contain any @author
tags.
{color:green}+1 tests included{color}. The patch appears to include 1 new
or modified test files.
{color:green}+1 javac{color}. The applied patch does not increase the
total number of javac compiler warnings.
{color:green}+1 javadoc{color}. There were no new javadoc warning messages.
{color:green}+1 eclipse:eclipse{color}. The patch built with
eclipse:eclipse.
{color:green}+1 findbugs{color}. The patch does not introduce any new
Findbugs (version 2.0.3) warnings.
{color:green}+1 release audit{color}. The applied patch does not increase
the total number of release audit warnings.
{color:green}+1 core tests{color}. The patch passed unit tests in
hadoop-common-project/hadoop-common.
Test results:
https://builds.apache.org/job/PreCommit-HADOOP-Build/5559//testReport/
Console output:
https://builds.apache.org/job/PreCommit-HADOOP-Build/5559//console
This message is automatically generated.
> 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, HADOOP-11506.002.patch,
> HADOOP-11506.003.patch, HADOOP-11506.004.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.
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