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From "Grant Ingersoll (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MAHOUT-1118) SLF4J Log4j bindings are messed up causing examples to fail
Date Sun, 18 Nov 2012 14:22:58 GMT

    [ https://issues.apache.org/jira/browse/MAHOUT-1118?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13499810#comment-13499810
] 

Grant Ingersoll commented on MAHOUT-1118:
-----------------------------------------

I'll let Jenkins do its thing before closing this out.
                
> 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: dev@mahout.apache.org ssc.open@googlemail.com p
> {code}

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