[CI] [Flaky] [Test] Unix Cpu test failed on Clojure cases

[xidulu]

As titled

http://jenkins.mxnet-ci.amazon-ml.com/blue/organizations/jenkins/mxnet-validation%2Funix-cpu/detail/PR-16152/1/pipeline

[ERROR] [ERROR] Some problems were encountered while processing the POMs:

[ERROR] Unresolveable build extension: Plugin org.codehaus.mojo:native-maven-plugin:1.0-alpha-7 or one of its dependencies could not be resolved: Could not transfer artifact bcel:bcel:jar:5.1 from/to central (https://repo.maven.apache.org/maven2): GET request of: bcel/bcel/5.1/bcel-5.1.jar from central failed @ 

[ERROR] Unresolveable build extension: Plugin org.codehaus.mojo:native-maven-plugin:1.0-alpha-7 or one of its dependencies could not be resolved: Could not transfer artifact bcel:bcel:jar:5.1 from/to central (https://repo.maven.apache.org/maven2): GET request of: bcel/bcel/5.1/bcel-5.1.jar from central failed @ 

[ERROR] Unknown packaging: so @ org.apache.mxnet:libmxnet-init-scala:[unknown-version], /work/mxnet/scala-package/init-native/pom.xml, line 36, column 14

[ERROR] Unresolveable build extension: Plugin org.codehaus.mojo:native-maven-plugin:1.0-alpha-7 or one of its dependencies could not be resolved: Could not transfer artifact bcel:bcel:jar:5.1 from/to central (https://repo.maven.apache.org/maven2): GET request of: bcel/bcel/5.1/bcel-5.1.jar from central failed @ 

[ERROR] Unknown packaging: so @ org.apache.mxnet:libmxnet-scala:[unknown-version], /work/mxnet/scala-package/native/pom.xml, line 31, column 14

[ERROR] Unresolveable build extension: Plugin org.codehaus.mojo:native-maven-plugin:1.0-alpha-7 or one of its dependencies could not be resolved: Could not transfer artifact bcel:bcel:jar:5.1 from/to central (https://repo.maven.apache.org/maven2): GET request of: bcel/bcel/5.1/bcel-5.1.jar from central failed @ 

 @ 

[ERROR] The build could not read 4 projects -> [Help 1]

[ERROR]   

[ERROR]   The project org.apache.mxnet:mxnet-scala-init:INTERNAL (/work/mxnet/scala-package/init/pom.xml) has 1 error

[ERROR]     Unresolveable build extension: Plugin org.codehaus.mojo:native-maven-plugin:1.0-alpha-7 or one of its dependencies could not be resolved: Could not transfer artifact bcel:bcel:jar:5.1 from/to central (https://repo.maven.apache.org/maven2): GET request of: bcel/bcel/5.1/bcel-5.1.jar from central failed: Connection reset -> [Help 2]

[ERROR]   

[ERROR]   The project org.apache.mxnet:libmxnet-init-scala:INTERNAL (/work/mxnet/scala-package/init-native/pom.xml) has 2 errors

[ERROR]     Unresolveable build extension: Plugin org.codehaus.mojo:native-maven-plugin:1.0-alpha-7 or one of its dependencies could not be resolved: Could not transfer artifact bcel:bcel:jar:5.1 from/to central (https://repo.maven.apache.org/maven2): GET request of: bcel/bcel/5.1/bcel-5.1.jar from central failed: Connection reset -> [Help 2]

[ERROR]     Unknown packaging: so @ org.apache.mxnet:libmxnet-init-scala:[unknown-version], /work/mxnet/scala-package/init-native/pom.xml, line 36, column 14

[ERROR]   

[ERROR]   The project org.apache.mxnet:libmxnet-scala:INTERNAL (/work/mxnet/scala-package/native/pom.xml) has 2 errors

[ERROR]     Unresolveable build extension: Plugin org.codehaus.mojo:native-maven-plugin:1.0-alpha-7 or one of its dependencies could not be resolved: Could not transfer artifact bcel:bcel:jar:5.1 from/to central (https://repo.maven.apache.org/maven2): GET request of: bcel/bcel/5.1/bcel-5.1.jar from central failed: Connection reset -> [Help 2]

[ERROR]     Unknown packaging: so @ org.apache.mxnet:libmxnet-scala:[unknown-version], /work/mxnet/scala-package/native/pom.xml, line 31, column 14

[ERROR]   

[ERROR]   The project org.apache.mxnet:mxnet-core:INTERNAL (/work/mxnet/scala-package/core/pom.xml) has 1 error

[ERROR]     Unresolveable build extension: Plugin org.codehaus.mojo:native-maven-plugin:1.0-alpha-7 or one of its dependencies could not be resolved: Could not transfer artifact bcel:bcel:jar:5.1 from/to central (https://repo.maven.apache.org/maven2): GET request of: bcel/bcel/5.1/bcel-5.1.jar from central failed: Connection reset -> [Help 2]

[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/ProjectBuildingException

[ERROR] [Help 2] http://cwiki.apache.org/confluence/display/MAVEN/PluginManagerException

build.py: 2019-09-12 10:04:38,942Z INFO Waiting for status of container 377caaf92969 for 600 s.

build.py: 2019-09-12 10:04:39,222Z INFO Container exit status: {'Error': None, 'StatusCode': 1}

build.py: 2019-09-12 10:04:39,222Z ERROR Container exited with an error 😞

build.py: 2019-09-12 10:04:39,222Z INFO Executed command for reproduction:



ci/build.py --docker-registry mxnetci --platform ubuntu_cpu --docker-build-retries 3 --shm-size 500m /work/runtime_functions.sh unittest_ubuntu_cpu_clojure



build.py: 2019-09-12 10:04:39,222Z INFO Stopping container: 377caaf92969

build.py: 2019-09-12 10:04:39,224Z INFO Removing container: 377caaf92969

build.py: 2019-09-12 10:04:39,245Z INFO Other running containers: ['61afc164a0c5', '673ccdbf8cc7']

build.py: 2019-09-12 10:04:39,245Z CRITICAL Execution of ['/work/runtime_functions.sh', 'unittest_ubuntu_cpu_clojure'] failed with status: 1

Terminated

script returned exit code 1

[xidulu]

@gigasquid mind taking a look :)

[gigasquid]

The failure in this case is downloading one of the scala jar dependendies:

[ERROR]   The project org.apache.mxnet:mxnet-scala-init:INTERNAL (/work/mxnet/scala-package/init/pom.xml) has 1 error

[ERROR]     Unresolveable build extension: Plugin org.codehaus.mojo:native-maven-plugin:1.0-alpha-7 or one of its dependencies could not be resolved: Could not transfer artifact bcel:bcel:jar:5.1 from/to central (https://repo.maven.apache.org/maven2): GET request of: bcel/bcel/5.1/bcel-5.1.jar from central failed: Connection reset -> [Help 2]

[ERROR]  

I imagine that this is a transitory connection error with maven, but I'll ping @lanking520 just in case. I rekicked the job to see if it completes this time

[xidulu]

@gigasquid
Thx for your time.
Btw, it seems that all the CI jobs are paused for some reasons currently, yellow lights everywhere. So, maybe it's gonna take some time to see if the connection error happens again.

[mxnet-label-bot]

Hey, this is the MXNet Label Bot.
Thank you for submitting the issue! I will try and suggest some labels so that the appropriate MXNet community members can help resolve it.
Here are my recommended label(s): Test, Flaky, CI

[zachgk]

That error means the CI machine was unable to connect to Maven central to download the package. We see it sometimes and are tracking the issue under #15605.