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https://issues.apache.org/jira/browse/MAPREDUCE-987?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13418146#comment-13418146
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Hadoop QA commented on MAPREDUCE-987:
-------------------------------------
-1 overall. Here are the results of testing the latest attachment
http://issues.apache.org/jira/secure/attachment/12537142/MAPREDUCE-987_rev3.patch
against trunk revision .
+1 @author. The patch does not contain any @author tags.
+1 tests included. The patch appears to include 2 new or modified test
files.
-1 javac. The applied patch generated 2067 javac compiler warnings (more
than the trunk's current 2066 warnings).
+1 javadoc. The javadoc tool did not generate any warning messages.
+1 eclipse:eclipse. The patch built with eclipse:eclipse.
+1 findbugs. The patch does not introduce any new Findbugs (version 1.3.9)
warnings.
+1 release audit. The applied patch does not increase the total number of
release audit warnings.
-1 core tests. The patch failed these unit tests in
hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-jobclient
hadoop-mapreduce-project/hadoop-yarn/hadoop-yarn-site:
org.apache.hadoop.mapreduce.lib.input.TestCombineFileInputFormat
+1 contrib tests. The patch passed contrib unit tests.
Test results:
https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/2625//testReport/
Javac warnings:
https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/2625//artifact/trunk/patchprocess/diffJavacWarnings.txt
Console output:
https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/2625//console
This message is automatically generated.
> Exposing MiniDFS and MiniMR clusters as a single process command-line
> ---------------------------------------------------------------------
>
> Key: MAPREDUCE-987
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-987
> Project: Hadoop Map/Reduce
> Issue Type: New Feature
> Components: build, test
> Reporter: Philip Zeyliger
> Assignee: Philip Zeyliger
> Priority: Minor
> Attachments: HDFS-621-0.20-patch, HDFS-621.patch,
> MAPREDUCE-987.patch, MAPREDUCE-987.patch, MAPREDUCE-987_branch-1.0.patch,
> MAPREDUCE-987_rev2.patch, MAPREDUCE-987_rev3.patch
>
>
> It's hard to test non-Java programs that rely on significant mapreduce
> functionality. The patch I'm proposing shortly will let you just type
> "bin/hadoop jar hadoop-hdfs-hdfswithmr-test.jar minicluster" to start a
> cluster (internally, it's using Mini{MR,HDFS}Cluster) with a specified number
> of daemons, etc. A test that checks how some external process interacts with
> Hadoop might start minicluster as a subprocess, run through its thing, and
> then simply kill the java subprocess.
> I've been using just such a system for a couple of weeks, and I like it.
> It's significantly easier than developing a lot of scripts to start a
> pseudo-distributed cluster, and then clean up after it. I figure others
> might find it useful as well.
> I'm at a bit of a loss as to where to put it in 0.21. hdfs-with-mr tests
> have all the required libraries, so I've put it there. I could conceivably
> split this into "minimr" and "minihdfs", but it's specifically the fact that
> they're configured to talk to each other that I like about having them
> together. And one JVM is better than two for my test programs.
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