You are viewing a plain text version of this content. The canonical link for it is here.

Posted to dev@mahout.apache.org by Apache Jenkins Server <je...@builds.apache.org> on 2013/07/04 00:30:41 UTC

Build failed in Jenkins: Mahout-Quality #2121

See <https://builds.apache.org/job/Mahout-Quality/2121/>

------------------------------------------
[...truncated 7201 lines...]
	at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:84)
	at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:59)
	at org.apache.maven.lifecycle.internal.LifecycleStarter.singleThreadedBuild(LifecycleStarter.java:183)
	at org.apache.maven.lifecycle.internal.LifecycleStarter.execute(LifecycleStarter.java:161)
	at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:320)
	at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:156)
	at org.apache.maven.cli.MavenCli.execute(MavenCli.java:537)
	at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:196)
	at org.apache.maven.cli.MavenCli.main(MavenCli.java:141)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:597)
	at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced(Launcher.java:290)
	at org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:230)
	at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(Launcher.java:409)
	at org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:352)
[WARNING] Failure executing PMD: Couldn't find the class Can't find resource rulesets/basic.xml.  Make sure the resource is a valid file or URL or is on the CLASSPATH.  Here's the current classpath: /home/hudson/tools/maven/apache-maven-3.0.4/boot/plexus-classworlds-2.4.jar
java.lang.RuntimeException: Couldn't find the class Can't find resource rulesets/basic.xml.  Make sure the resource is a valid file or URL or is on the CLASSPATH.  Here's the current classpath: /home/hudson/tools/maven/apache-maven-3.0.4/boot/plexus-classworlds-2.4.jar
	at net.sourceforge.pmd.RuleSetFactory.classNotFoundProblem(RuleSetFactory.java:244)
	at net.sourceforge.pmd.RuleSetFactory.parseRuleSetNode(RuleSetFactory.java:234)
	at net.sourceforge.pmd.RuleSetFactory.createRuleSet(RuleSetFactory.java:161)
	at net.sourceforge.pmd.RuleSetFactory.createRuleSets(RuleSetFactory.java:126)
	at net.sourceforge.pmd.RuleSetFactory.createRuleSets(RuleSetFactory.java:111)
	at net.sourceforge.pmd.processor.AbstractPMDProcessor.createRuleSets(AbstractPMDProcessor.java:56)
	at net.sourceforge.pmd.processor.MonoThreadProcessor.processFiles(MonoThreadProcessor.java:41)
	at net.sourceforge.pmd.PMD.processFiles(PMD.java:271)
	at org.apache.maven.plugin.pmd.PmdReport.generateReport(PmdReport.java:296)
	at org.apache.maven.plugin.pmd.PmdReport.execute(PmdReport.java:194)
	at org.apache.maven.plugin.pmd.PmdReport.executeReport(PmdReport.java:168)
	at org.apache.maven.reporting.AbstractMavenReport.generate(AbstractMavenReport.java:190)
	at org.apache.maven.reporting.AbstractMavenReport.execute(AbstractMavenReport.java:99)
	at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:101)
	at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:209)
	at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:153)
	at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:145)
	at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:84)
	at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:59)
	at org.apache.maven.lifecycle.internal.LifecycleStarter.singleThreadedBuild(LifecycleStarter.java:183)
	at org.apache.maven.lifecycle.internal.LifecycleStarter.execute(LifecycleStarter.java:161)
	at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:320)
	at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:156)
	at org.apache.maven.cli.MavenCli.execute(MavenCli.java:537)
	at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:196)
	at org.apache.maven.cli.MavenCli.main(MavenCli.java:141)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:597)
	at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced(Launcher.java:290)
	at org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:230)
	at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(Launcher.java:409)
	at org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:352)
[INFO]                                                                         
[INFO] ------------------------------------------------------------------------
[INFO] Building Mahout Integration 0.8-SNAPSHOT
[INFO] ------------------------------------------------------------------------
[WARNING] The POM for com.atlassian.maven.plugins:maven-clover2-plugin:jar:3.1.11.1 is missing, no dependency information available
[WARNING] Failed to retrieve plugin descriptor for com.atlassian.maven.plugins:maven-clover2-plugin:3.1.11.1: Plugin com.atlassian.maven.plugins:maven-clover2-plugin:3.1.11.1 or one of its dependencies could not be resolved: Failed to read artifact descriptor for com.atlassian.maven.plugins:maven-clover2-plugin:jar:3.1.11.1
[WARNING] The POM for com.atlassian.maven.plugins:maven-clover2-plugin:jar:3.1.11.1 is missing, no dependency information available
[WARNING] Failed to retrieve plugin descriptor for com.atlassian.maven.plugins:maven-clover2-plugin:3.1.11.1: Plugin com.atlassian.maven.plugins:maven-clover2-plugin:3.1.11.1 or one of its dependencies could not be resolved: Failed to read artifact descriptor for com.atlassian.maven.plugins:maven-clover2-plugin:jar:3.1.11.1
[WARNING] The POM for org.eclipse.m2e:lifecycle-mapping:jar:1.0.0 is missing, no dependency information available
[WARNING] Failed to retrieve plugin descriptor for org.eclipse.m2e:lifecycle-mapping:1.0.0: Plugin org.eclipse.m2e:lifecycle-mapping:1.0.0 or one of its dependencies could not be resolved: Failed to read artifact descriptor for org.eclipse.m2e:lifecycle-mapping:jar:1.0.0
[WARNING] The POM for com.atlassian.maven.plugins:maven-clover2-plugin:jar:3.1.11.1 is missing, no dependency information available
[WARNING] Failed to retrieve plugin descriptor for com.atlassian.maven.plugins:maven-clover2-plugin:3.1.11.1: Plugin com.atlassian.maven.plugins:maven-clover2-plugin:3.1.11.1 or one of its dependencies could not be resolved: Failed to read artifact descriptor for com.atlassian.maven.plugins:maven-clover2-plugin:jar:3.1.11.1
[WARNING] The POM for org.eclipse.m2e:lifecycle-mapping:jar:1.0.0 is missing, no dependency information available
[WARNING] Failed to retrieve plugin descriptor for org.eclipse.m2e:lifecycle-mapping:1.0.0: Plugin org.eclipse.m2e:lifecycle-mapping:1.0.0 or one of its dependencies could not be resolved: Failed to read artifact descriptor for org.eclipse.m2e:lifecycle-mapping:jar:1.0.0
[INFO] 
[INFO] --- maven-clean-plugin:2.4.1:clean (default-clean) @ mahout-integration ---
[INFO] 
[INFO] --- maven-resources-plugin:2.6:resources (default-resources) @ mahout-integration ---
[INFO] Using 'UTF-8' encoding to copy filtered resources.
[INFO] Copying 0 resource
[INFO] 
[INFO] --- maven-compiler-plugin:3.1:compile (default-compile) @ mahout-integration ---
[INFO] Changes detected - recompiling the module!
[INFO] Compiling 131 source files to <https://builds.apache.org/job/Mahout-Quality/2121/artifact/trunk/integration/target/classes>
[WARNING] Note: Some input files use or override a deprecated API.
[WARNING] Note: Recompile with -Xlint:deprecation for details.
[WARNING] Note: <https://builds.apache.org/job/Mahout-Quality/ws/trunk/integration/src/main/java/org/apache/mahout/cf/taste/impl/model/mongodb/MongoDBDataModel.java> uses unchecked or unsafe operations.
[WARNING] Note: Recompile with -Xlint:unchecked for details.
[INFO] 
[INFO] --- maven-resources-plugin:2.6:testResources (default-testResources) @ mahout-integration ---
[INFO] Using 'UTF-8' encoding to copy filtered resources.
[INFO] Copying 10 resources
[INFO] 
[INFO] --- maven-compiler-plugin:3.1:testCompile (default-testCompile) @ mahout-integration ---
[INFO] Changes detected - recompiling the module!
[INFO] Compiling 39 source files to <https://builds.apache.org/job/Mahout-Quality/2121/artifact/trunk/integration/target/test-classes>
[WARNING] Note: Some input files use or override a deprecated API.
[WARNING] Note: Recompile with -Xlint:deprecation for details.
[INFO] 
[INFO] --- maven-surefire-plugin:2.14.1:test (default-test) @ mahout-integration ---
[INFO] Surefire report directory: <https://builds.apache.org/job/Mahout-Quality/2121/artifact/trunk/integration/target/surefire-reports>

-------------------------------------------------------
 T E S T S
-------------------------------------------------------

-------------------------------------------------------
 T E S T S
-------------------------------------------------------
parallel='classes', perCoreThreadCount=false, threadCount=1, useUnlimitedThreads=false
parallel='classes', perCoreThreadCount=false, threadCount=1, useUnlimitedThreads=false
parallel='classes', perCoreThreadCount=false, threadCount=1, useUnlimitedThreads=false
parallel='classes', perCoreThreadCount=false, threadCount=1, useUnlimitedThreads=false
parallel='classes', perCoreThreadCount=false, threadCount=1, useUnlimitedThreads=false
parallel='classes', perCoreThreadCount=false, threadCount=1, useUnlimitedThreads=false
parallel='classes', perCoreThreadCount=false, threadCount=1, useUnlimitedThreads=false
parallel='classes', perCoreThreadCount=false, threadCount=1, useUnlimitedThreads=false
parallel='classes', perCoreThreadCount=false, threadCount=1, useUnlimitedThreads=false
Running org.apache.mahout.text.MailArchivesClusteringAnalyzerTest
parallel='classes', perCoreThreadCount=false, threadCount=1, useUnlimitedThreads=false
parallel='classes', perCoreThreadCount=false, threadCount=1, useUnlimitedThreads=false
Tests run: 1, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.11 sec
Running org.apache.mahout.text.LuceneSegmentInputSplitTest
parallel='classes', perCoreThreadCount=false, threadCount=1, useUnlimitedThreads=false
Running org.apache.mahout.text.LuceneStorageConfigurationTest
Running org.apache.mahout.text.TestSequenceFilesFromDirectory
Running org.apache.mahout.text.SequenceFilesFromLuceneStorageTest
Running org.apache.mahout.text.LuceneSegmentInputFormatTest
Running org.apache.mahout.text.SequenceFilesFromLuceneStorageDriverTest
Running org.apache.mahout.text.SequenceFilesFromMailArchivesTest
Running org.apache.mahout.text.SequenceFilesFromLuceneStorageMRJobTest
Running org.apache.mahout.text.LuceneSegmentRecordReaderTest
Running org.apache.mahout.utils.SplitInputTest
Running org.apache.mahout.utils.email.MailProcessorTest
Tests run: 2, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.379 sec
parallel='classes', perCoreThreadCount=false, threadCount=1, useUnlimitedThreads=false
Running org.apache.mahout.utils.TestConcatenateVectorsJob
Tests run: 2, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 1.673 sec
parallel='classes', perCoreThreadCount=false, threadCount=1, useUnlimitedThreads=false
parallel='classes', perCoreThreadCount=false, threadCount=1, useUnlimitedThreads=false
Running org.apache.mahout.utils.Bump125Test
Tests run: 1, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.059 sec
Running org.apache.mahout.utils.vectors.io.VectorWriterTest
Tests run: 1, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 1.723 sec
parallel='classes', perCoreThreadCount=false, threadCount=1, useUnlimitedThreads=false
Running org.apache.mahout.utils.vectors.csv.CSVVectorIteratorTest
parallel='classes', perCoreThreadCount=false, threadCount=1, useUnlimitedThreads=false
Running org.apache.mahout.utils.vectors.arff.ARFFTypeTest
Tests run: 1, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.006 sec
Tests run: 2, Failures: 1, Errors: 0, Skipped: 0, Time elapsed: 3.885 sec <<< FAILURE!
testSequential(org.apache.mahout.text.SequenceFilesFromMailArchivesTest)  Time elapsed: 1.842 sec  <<< FAILURE!
org.junit.ComparisonFailure: expected:<TE...@example.com> but was:<TE...@example.com>
	at org.junit.Assert.assertEquals(Assert.java:115)
	at org.junit.Assert.assertEquals(Assert.java:144)
	at org.apache.mahout.text.SequenceFilesFromMailArchivesTest.testSequential(SequenceFilesFromMailArchivesTest.java:106)

Tests run: 1, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 3.984 sec
Tests run: 2, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 1.398 sec
Tests run: 1, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.743 sec
parallel='classes', perCoreThreadCount=false, threadCount=1, useUnlimitedThreads=false
Tests run: 1, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 4.729 sec
parallel='classes', perCoreThreadCount=false, threadCount=1, useUnlimitedThreads=false
parallel='classes', perCoreThreadCount=false, threadCount=1, useUnlimitedThreads=false
parallel='classes', perCoreThreadCount=false, threadCount=1, useUnlimitedThreads=false
Tests run: 2, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 5.367 sec
Running org.apache.mahout.utils.vectors.arff.MapBackedARFFModelTest
Running org.apache.mahout.utils.vectors.arff.DriverTest
Tests run: 1, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.065 sec
Tests run: 2, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 5.459 sec
parallel='classes', perCoreThreadCount=false, threadCount=1, useUnlimitedThreads=false
Running org.apache.mahout.utils.vectors.arff.ARFFVectorIterableTest
Running org.apache.mahout.utils.vectors.VectorHelperTest
Running org.apache.mahout.utils.vectors.lucene.LuceneIterableTest
Tests run: 3, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.088 sec
parallel='classes', perCoreThreadCount=false, threadCount=1, useUnlimitedThreads=false
Tests run: 8, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.326 sec
parallel='classes', perCoreThreadCount=false, threadCount=1, useUnlimitedThreads=false
parallel='classes', perCoreThreadCount=false, threadCount=1, useUnlimitedThreads=false
Tests run: 2, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 1.022 sec
Running org.apache.mahout.utils.vectors.lucene.DriverTest
Running org.apache.mahout.utils.vectors.lucene.CachedTermInfoTest
Running org.apache.mahout.utils.nlp.collocations.llr.BloomTokenFilterTest
parallel='classes', perCoreThreadCount=false, threadCount=1, useUnlimitedThreads=false
Tests run: 5, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.117 sec
parallel='classes', perCoreThreadCount=false, threadCount=1, useUnlimitedThreads=false
parallel='classes', perCoreThreadCount=false, threadCount=1, useUnlimitedThreads=false
Running org.apache.mahout.utils.regex.RegexUtilsTest
Tests run: 1, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.026 sec
Running org.apache.mahout.utils.regex.RegexMapperTest
parallel='classes', perCoreThreadCount=false, threadCount=1, useUnlimitedThreads=false
parallel='classes', perCoreThreadCount=false, threadCount=1, useUnlimitedThreads=false
Running org.apache.mahout.cf.taste.impl.similarity.jdbc.MySQLJDBCInMemoryItemSimilarityTest
Tests run: 3, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 1.457 sec
Tests run: 1, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 1.014 sec
Running org.apache.mahout.clustering.cdbw.TestCDbwEvaluator
Running org.apache.mahout.clustering.dirichlet.TestL1ModelClustering
parallel='classes', perCoreThreadCount=false, threadCount=1, useUnlimitedThreads=false
parallel='classes', perCoreThreadCount=false, threadCount=1, useUnlimitedThreads=false
Running org.apache.mahout.clustering.TestClusterDumper
Tests run: 1, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.885 sec
Running org.apache.mahout.clustering.TestClusterEvaluator
Tests run: 3, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 1.154 sec
Tests run: 1, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 8.451 sec
Tests run: 4, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 1.75 sec
Tests run: 1, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 3.442 sec
Tests run: 5, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 10.537 sec
Tests run: 12, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 10.326 sec
Tests run: 6, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 10.919 sec
Tests run: 6, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 8.029 sec
Tests run: 12, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 9.429 sec
Tests run: 12, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 17.992 sec

Results :

Failed tests: 
  SequenceFilesFromMailArchivesTest.testSequential:106->Assert.assertEquals:144->Assert.assertEquals:115 expected:<TE...@example.com> but was:<TE...@example.com>

Tests run: 106, Failures: 1, Errors: 0, Skipped: 0

[INFO] ------------------------------------------------------------------------
[INFO] Reactor Summary:
[INFO] 
[INFO] Apache Mahout ..................................... SUCCESS [3.648s]
[INFO] Mahout Build Tools ................................ SUCCESS [2.052s]
[INFO] Mahout Math ....................................... SUCCESS [1:26.124s]
[INFO] Mahout Core ....................................... SUCCESS [5:48.386s]
[INFO] Mahout Integration ................................ FAILURE [32.094s]
[INFO] Mahout Examples ................................... SKIPPED
[INFO] Mahout Release Package ............................ SKIPPED
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 8:03.621s
[INFO] Finished at: Wed Jul 03 22:29:55 UTC 2013
[INFO] Final Memory: 44M/382M
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal org.apache.maven.plugins:maven-surefire-plugin:2.14.1:test (default-test) on project mahout-integration: There are test failures.
[ERROR] 
[ERROR] Please refer to <https://builds.apache.org/job/Mahout-Quality/2121/artifact/trunk/integration/target/surefire-reports> for the individual test results.
[ERROR] -> [Help 1]
[ERROR] 
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
[ERROR] Re-run Maven using the -X switch to enable full debug logging.
[ERROR] 
[ERROR] For more information about the errors and possible solutions, please read the following articles:
[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/MojoFailureException
[ERROR] 
[ERROR] After correcting the problems, you can resume the build with the command
[ERROR]   mvn <goals> -rf :mahout-integration
Build step 'Invoke top-level Maven targets' marked build as failure
[FINDBUGS] Skipping publisher since build result is FAILURE
[PMD] Skipping publisher since build result is FAILURE
[TASKS] Skipping publisher since build result is FAILURE
Archiving artifacts
Recording test results
Publishing Javadoc

Re: Jenkins build is back to normal : Mahout-Quality #2128

Posted by Stevo Slavić <ss...@gmail.com>.

Build still seems to be failing (see
https://builds.apache.org/job/mahout-nightly/1286/consoleFull ), maybe just
less frequently.
Will have to look into this, after release.

Kind regards,
Stevo Slavić.

On Sun, Jul 7, 2013 at 11:02 PM, Grant Ingersoll <gs...@apache.org>wrote:

>
> On Jul 6, 2013, at 4:38 PM, Stevo Slavić <ss...@gmail.com> wrote:
>
> > What did the trick (as of r1500216) for last two builds to be successful
> > was serializing unit tests. At least some of them it seems are not
> designed
> > to run in parallel (they very likely share some state), and they were
> > running in parallel (1.5 per CPU core of Jenkins node on which build is
> > running), causing each other to fail randomly. Now it's all sequential.
>
> So, we undid the parallel builds?  Do you have a sense of the ones that
> were causing problems?
>
> -G

Re: Jenkins build is back to normal : Mahout-Quality #2128

Posted by Grant Ingersoll <gs...@apache.org>.

On Jul 6, 2013, at 4:38 PM, Stevo Slavić <ss...@gmail.com> wrote:

> What did the trick (as of r1500216) for last two builds to be successful
> was serializing unit tests. At least some of them it seems are not designed
> to run in parallel (they very likely share some state), and they were
> running in parallel (1.5 per CPU core of Jenkins node on which build is
> running), causing each other to fail randomly. Now it's all sequential.

So, we undid the parallel builds?  Do you have a sense of the ones that were causing problems?

-G

Re: Jenkins build is back to normal : Mahout-Quality #2128

Posted by Stevo Slavić <ss...@gmail.com>.

Hello team,

Success of that particular build was pure luck. Point of the commit that
triggered the build and several previous commits was to get source code
static analysis checks to work and consistently use custom settings from
buildtools module. E.g. SE_BAD_FIELD rule/check is excluded from findbugs
checks. Before these changes findbugs maven report on Jenkins used to list
that as high prio findbugs
issue<https://builds.apache.org/job/Mahout-Quality/2118/findbugsResult/HIGH/module.-1810137467/package.-1319752439/>in
modules like mahout-core, now
it doesn't<https://builds.apache.org/job/Mahout-Quality/2131/findbugsResult/HIGH/>.
I wanted to work on eliminating those quality issues, and found lack of
consistency between Jenkins and IDE annoying enough to go and fix it before
0.8 release, even while on vacation - island of Thassos, Greece, it's nice
here btw, you should all come :-)

What did the trick (as of r1500216) for last two builds to be successful
was serializing unit tests. At least some of them it seems are not designed
to run in parallel (they very likely share some state), and they were
running in parallel (1.5 per CPU core of Jenkins node on which build is
running), causing each other to fail randomly. Now it's all sequential.
Good thing is, that all Mahout build jobs are passing now. Downside is that
build time has increased. It tripled for these two:
https://builds.apache.org/job/Mahout-Quality/buildTimeTrend
https://builds.apache.org/job/Mahout-Trunk/buildTimeTrend

and nightly build took ~7x more time to complete:
https://builds.apache.org/job/mahout-nightly/buildTimeTrend

Mahout-Examples build jobs build times it seems didn't change.

Fast feedback from unit tests IMO is very important, so we should improve
the build time, better sooner than later, through more build script
configuration, but also designing unit tests for parallel execution in mind.

Kind regards,
Stevo Slavić.

On Sat, Jul 6, 2013 at 2:37 AM, Suneel Marthi <su...@yahoo.com>wrote:

> Thanks Stevo.  This could be a dumb question given my complete lack of
> understanding of all things Maven - so what was it that was causing random
> test failures?
>
>
>
>
> ________________________________
>  From: Ted Dunning <te...@gmail.com>
> To: Mahout Dev List <de...@mahout.apache.org>
> Sent: Friday, July 5, 2013 8:22 PM
> Subject: Re: Jenkins build is back to normal : Mahout-Quality #2128
>
>
> Thank you Stevo!
>
>
> On Fri, Jul 5, 2013 at 4:45 PM, Apache Jenkins Server <
> jenkins@builds.apache.org> wrote:
>
> > See <https://builds.apache.org/job/Mahout-Quality/2128/changes>
> >
> >
>

Re: Jenkins build is back to normal : Mahout-Quality #2128

Posted by Suneel Marthi <su...@yahoo.com>.

Thanks Stevo.  This could be a dumb question given my complete lack of understanding of all things Maven - so what was it that was causing random test failures?

________________________________
 From: Ted Dunning <te...@gmail.com>
To: Mahout Dev List <de...@mahout.apache.org> 
Sent: Friday, July 5, 2013 8:22 PM
Subject: Re: Jenkins build is back to normal : Mahout-Quality #2128

Thank you Stevo!

On Fri, Jul 5, 2013 at 4:45 PM, Apache Jenkins Server <
jenkins@builds.apache.org> wrote:

> See <https://builds.apache.org/job/Mahout-Quality/2128/changes>
>
>