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https://issues.apache.org/jira/browse/HDFS-534?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12741808#action_12741808
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Tom White commented on HDFS-534:
--------------------------------
Can you define a variable for the Avro version number in ivysettings.xml and
reference it in the "rev" field in ivy.xml? This would be more consistent with
the rest of the file.
> Required avro classes are missing
> ---------------------------------
>
> Key: HDFS-534
> URL: https://issues.apache.org/jira/browse/HDFS-534
> Project: Hadoop HDFS
> Issue Type: Bug
> Affects Versions: 0.21.0
> Reporter: Tsz Wo (Nicholas), SZE
> Assignee: Tsz Wo (Nicholas), SZE
> Fix For: 0.21.0
>
> Attachments: h534_20090810.patch, h534_20090810b.patch
>
>
> Some tests like TestDFSIO are failing:
> {noformat}
> java.lang.NoClassDefFoundError: org/apache/avro/io/DatumReader
> at java.lang.Class.forName0(Native Method)
> at java.lang.Class.forName(Class.java:247)
> at
> org.apache.hadoop.conf.Configuration.getClassByName(Configuration.java:837)
> at
> org.apache.hadoop.io.serializer.SerializationFactory.add(SerializationFactory.java:66)
> at
> org.apache.hadoop.io.serializer.SerializationFactory.<init>(SerializationFactory.java:58)
> at org.apache.hadoop.io.SequenceFile$Writer.init(SequenceFile.java:916)
> at
> org.apache.hadoop.io.SequenceFile$Writer.<init>(SequenceFile.java:852)
> at org.apache.hadoop.io.SequenceFile.createWriter(SequenceFile.java:385)
> at org.apache.hadoop.io.SequenceFile.createWriter(SequenceFile.java:276)
> at org.apache.hadoop.fs.TestDFSIO.createControlFile(TestDFSIO.java:134)
> at org.apache.hadoop.fs.TestDFSIO.testIOs(TestDFSIO.java:114)
> at org.apache.hadoop.fs.TestDFSIO.testIOs(TestDFSIO.java:99)
> Caused by: java.lang.ClassNotFoundException: org.apache.avro.io.DatumReader
> at java.net.URLClassLoader$1.run(URLClassLoader.java:200)
> at java.security.AccessController.doPrivileged(Native Method)
> at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
> at java.lang.ClassLoader.loadClass(ClassLoader.java:307)
> at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
> at java.lang.ClassLoader.loadClass(ClassLoader.java:252)
> at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:320)
> {noformat}
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