[
https://issues.apache.org/jira/browse/MAHOUT-822?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Tom White updated MAHOUT-822:
-----------------------------
Attachment: MAHOUT-822.patch
Here's a patch for fixing the compilation errors. It is not be committed since
it is not backwards compatible with 0.20. However, the changes are only in the
test code which provide mock implementations of context objects (the changes
were due to MAPREDUCE-954), so it might be possible to use EasyMock or CGLIB to
write something that works in both 0.20 and 0.23.
> Mahout needs to be made compatible with Hadoop .23 releases
> -----------------------------------------------------------
>
> Key: MAHOUT-822
> URL: https://issues.apache.org/jira/browse/MAHOUT-822
> Project: Mahout
> Issue Type: Improvement
> Components: build
> Affects Versions: 0.6
> Reporter: Roman Shaposhnik
> Attachments: MAHOUT-822-build.patch.txt, MAHOUT-822.patch
>
>
> As part of the Hadoop stack integration project (Apache Bigtop) we are now
> trying to compile Mahout's upcoming 0.6 release against Hadoop 0.22 and 0.23.
> I'm attaching the patch to Mahout's Maven build system that made it possible.
> I would also like to request help in solving the real issues that poped
> up when we tried to compile Mahout:
> http://bigtop01.cloudera.org:8080/job/Bigtop-hadoop22/COMPONENT=mahout,label=centos5/6/console
> {noformat}
> [ERROR]
> /mnt/jenkins/workspace/workspace/Bigtop-hadoop22/COMPONENT/mahout/label/centos5/build/mahout/rpm/BUILD/apache-mahout-c298f70/core/src/test/java/org/apache/mahout/df/mapreduce/partial/Step0JobTest.java:[182,33]
> org.apache.hadoop.mapreduce.TaskAttemptContext is abstract; cannot be
> instantiated
> [ERROR]
> /mnt/jenkins/workspace/workspace/Bigtop-hadoop22/COMPONENT/mahout/label/centos5/build/mahout/rpm/BUILD/apache-mahout-c298f70/core/src/test/java/org/apache/mahout/df/mapreduce/partial/Step0JobTest.java:[218,9]
> org.apache.mahout.df.mapreduce.partial.Step0JobTest.Step0Context is not
> abstract and does not override abstract method getInputSplit() in
> org.apache.hadoop.mapreduce.MapContext
> [ERROR]
> /mnt/jenkins/workspace/workspace/Bigtop-hadoop22/COMPONENT/mahout/label/centos5/build/mahout/rpm/BUILD/apache-mahout-c298f70/core/src/test/java/org/apache/mahout/df/mapreduce/partial/Step0JobTest.java:[229,12]
> cannot find symbol
> [ERROR] symbol : constructor
> Context(org.apache.hadoop.conf.Configuration,org.apache.hadoop.mapreduce.TaskAttemptID,<nulltype>,<nulltype>,<nulltype>,<nulltype>,<nulltype>)
> [ERROR] location: class org.apache.hadoop.mapreduce.Mapper.Context
> [ERROR]
> /mnt/jenkins/workspace/workspace/Bigtop-hadoop22/COMPONENT/mahout/label/centos5/build/mahout/rpm/BUILD/apache-mahout-c298f70/core/src/test/java/org/apache/mahout/common/DummyRecordWriter.java:[68,18]
> org.apache.hadoop.mapreduce.Mapper.Context is abstract; cannot be
> instantiated
> [ERROR]
> /mnt/jenkins/workspace/workspace/Bigtop-hadoop22/COMPONENT/mahout/label/centos5/build/mahout/rpm/BUILD/apache-mahout-c298f70/core/src/test/java/org/apache/mahout/common/DummyRecordWriter.java:[77,19]
> org.apache.hadoop.mapreduce.Reducer.Context is abstract; cannot be
> instantiated
> [ERROR]
> /mnt/jenkins/workspace/workspace/Bigtop-hadoop22/COMPONENT/mahout/label/centos5/build/mahout/rpm/BUILD/apache-mahout-c298f70/core/src/test/java/org/apache/mahout/df/mapreduce/partial/PartialSequentialBuilder.java:[110,30]
> org.apache.hadoop.mapreduce.TaskAttemptContext is abstract; cannot be
> instantiated
> [ERROR]
> /mnt/jenkins/workspace/workspace/Bigtop-hadoop22/COMPONENT/mahout/label/centos5/build/mahout/rpm/BUILD/apache-mahout-c298f70/core/src/test/java/org/apache/mahout/df/mapreduce/partial/PartialSequentialBuilder.java:[206,28]
> org.apache.hadoop.mapreduce.JobContext is abstract; cannot be instantiated
> [ERROR]
> /mnt/jenkins/workspace/workspace/Bigtop-hadoop22/COMPONENT/mahout/label/centos5/build/mahout/rpm/BUILD/apache-mahout-c298f70/core/src/test/java/org/apache/mahout/df/mapreduce/partial/PartialSequentialBuilder.java:[227,30]
> org.apache.hadoop.mapreduce.TaskAttemptContext is abstract; cannot be
> instantiated
> [ERROR]
> /mnt/jenkins/workspace/workspace/Bigtop-hadoop22/COMPONENT/mahout/label/centos5/build/mahout/rpm/BUILD/apache-mahout-c298f70/core/src/test/java/org/apache/mahout/df/mapreduce/partial/MockContext.java:[30,6]
> org.apache.mahout.df.mapreduce.partial.MockContext is not abstract and does
> not override abstract method getInputSplit() in
> org.apache.hadoop.mapreduce.MapContext
> [ERROR]
> /mnt/jenkins/workspace/workspace/Bigtop-hadoop22/COMPONENT/mahout/label/centos5/build/mahout/rpm/BUILD/apache-mahout-c298f70/core/src/test/java/org/apache/mahout/df/mapreduce/partial/MockContext.java:[38,10]
> cannot find symbol
> {noformat}
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