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https://issues.apache.org/jira/browse/SQOOP-384?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13167893#comment-13167893
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Eric Wadsworth commented on SQOOP-384:
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For whoever is working on this, there is a binary incompatibility between
hadoop 0.20 and hadoop 0.23, around the JobContext class. It was converted into
an interface in 0.23. So, when you build sqoop, do it like this, so that the
class files are generated against the older JobContext:
ant -Dhadoopversion=20 jar-all
I don't know how this will work against hadoop 0.23 however.
> Sqoop is incompatible with Hadoop prior to 0.21
> -----------------------------------------------
>
> Key: SQOOP-384
> URL: https://issues.apache.org/jira/browse/SQOOP-384
> Project: Sqoop
> Issue Type: Bug
> Components: codegen
> Affects Versions: 1.3.0
> Reporter: Roman Shaposhnik
> Labels: hadoop, patch
> Fix For: 1.4.1-incubating
>
> Attachments: wad_ConfigurationHolder.patch.gz
>
>
> The following are the APIs Sqoop relies upon, which are not available in
> Hadoop prior to 0.21:
> org.apache.hadoop.conf.Configuration.getInstances
> org.apache.hadoop.mapreduce.lib.db.DBWritable
> org.apache.hadoop.mapreduce.lib.input.CombineFileSplit
> org.apache.hadoop.mapreduce.lib.input.CombineFileInputFormat
> org.apache.hadoop.mapreduce.lib.input.CombineFileRecordReader
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