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Posted to dev@mahout.apache.org by "Tom White (Updated) (JIRA)" <ji...@apache.org> on 2011/11/02 20:15:33 UTC
[jira] [Updated] (MAHOUT-822) Mahout needs to be made compatible
with Hadoop .23 releases
[ 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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