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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-11032) Replace use of Guava Stopwatch with Apache StopWatch
Date Sat, 30 Aug 2014 15:26:53 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-11032?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14116421#comment-14116421
] 

Hadoop QA commented on HADOOP-11032:
------------------------------------

{color:red}-1 overall{color}.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12665560/HADOOP-11032.1.patch
  against trunk revision 0f34e6f.

    {color:green}+1 @author{color}.  The patch does not contain any @author tags.

    {color:green}+1 tests included{color}.  The patch appears to include 4 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:red}-1 core tests{color}.  The patch failed these unit tests in hadoop-common-project/hadoop-common
hadoop-hdfs-project/hadoop-hdfs hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core:

                  org.apache.hadoop.metrics2.impl.TestMetricsSystemImpl
                  org.apache.hadoop.hdfs.web.TestWebHdfsFileSystemContract
                  org.apache.hadoop.hdfs.server.balancer.TestBalancer
                  org.apache.hadoop.hdfs.server.namenode.ha.TestPipelinesFailover
                  org.apache.hadoop.hdfs.TestFileLengthOnClusterRestart

    {color:green}+1 contrib tests{color}.  The patch passed contrib unit tests.

Test results: https://builds.apache.org/job/PreCommit-HADOOP-Build/4604//testReport/
Console output: https://builds.apache.org/job/PreCommit-HADOOP-Build/4604//console

This message is automatically generated.

> Replace use of Guava Stopwatch with Apache StopWatch
> ----------------------------------------------------
>
>                 Key: HADOOP-11032
>                 URL: https://issues.apache.org/jira/browse/HADOOP-11032
>             Project: Hadoop Common
>          Issue Type: Improvement
>            Reporter: Gary Steelman
>            Assignee: Tsuyoshi OZAWA
>         Attachments: HADOOP-11032.1.patch
>
>
> This patch reduces Hadoop's dependency on an old version of guava. Stopwatch.elapsedMillis()
isn't part of guava past v16 and the tools I'm working on use v17. 
> To remedy this and also reduce Hadoop's reliance on old versions of guava, we can use
the Apache StopWatch (org.apache.commons.lang.time.StopWatch) which provides nearly equivalent
functionality. apache.commons.lang is already a dependency for Hadoop so this will not introduce
new dependencies. 



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