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https://issues.apache.org/jira/browse/MAHOUT-1118?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Grant Ingersoll updated MAHOUT-1118:
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Attachment: MAHOUT-1118.patch
First crack at this. haven't run tests yet, but it does allow the examples to
run again.
> SLF4J Log4j bindings are messed up causing examples to fail
> -----------------------------------------------------------
>
> Key: MAHOUT-1118
> URL: https://issues.apache.org/jira/browse/MAHOUT-1118
> Project: Mahout
> Issue Type: Bug
> Reporter: Grant Ingersoll
> Assignee: Grant Ingersoll
> Attachments: MAHOUT-1118.patch
>
>
> We are routinely seeing the following failures when running the examples on
> Jenkins and they are due to old SLF4j bindings on Cassandra and HBase:
> {code}
> Training on /tmp/mahout-work-jenkins/20news-bydate/20news-bydate-train/
> hadoop binary is not in PATH,HADOOP_HOME/bin,HADOOP_PREFIX/bin, running
> locally
> SLF4J: Class path contains multiple SLF4J bindings.
> SLF4J: Found binding in
> [jar:file:/x1/jenkins/jenkins-slave/workspace/Mahout-Examples-Classify-20News/trunk/examples/target/mahout-examples-0.8-SNAPSHOT-job.jar!/org/slf4j/impl/StaticLoggerBinder.class]
> SLF4J: Found binding in
> [jar:file:/x1/jenkins/jenkins-slave/workspace/Mahout-Examples-Classify-20News/trunk/examples/target/dependency/slf4j-jcl-1.7.2.jar!/org/slf4j/impl/StaticLoggerBinder.class]
> SLF4J: Found binding in
> [jar:file:/x1/jenkins/jenkins-slave/workspace/Mahout-Examples-Classify-20News/trunk/examples/target/dependency/slf4j-log4j12-1.4.3.jar!/org/slf4j/impl/StaticLoggerBinder.class]
> SLF4J: See http://www.slf4j.org/codes.html#multiple_bindings for an
> explanation.
> SLF4J: slf4j-api 1.6.x (or later) is incompatible with this binding.
> SLF4J: Your binding is version 1.5.5 or earlier.
> SLF4J: Upgrade your binding to version 1.6.x.
> Exception in thread "main" java.lang.NoSuchMethodError:
> org.slf4j.impl.StaticLoggerBinder.getSingleton()Lorg/slf4j/impl/StaticLoggerBinder;
> at org.slf4j.LoggerFactory.bind(LoggerFactory.java:128)
> at org.slf4j.LoggerFactory.performInitialization(LoggerFactory.java:107)
> at org.slf4j.LoggerFactory.getILoggerFactory(LoggerFactory.java:295)
> at org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:269)
> at org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:281)
> at org.apache.mahout.driver.MahoutDriver.<clinit>(MahoutDriver.java:89)
> Could not find the main class: org.apache.mahout.driver.MahoutDriver.
> Program will exit.
> Build step 'Execute shell' marked build as failure
> Sending e-mails to: [email protected] [email protected] p
> {code}
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