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Benjamin Coverston updated CASSANDRA-5201: ------------------------------------------ Attachment: progressable-wrapper.patch I removed the hadoop-compat dependency, as maven couldn't resolve the dependencies, reverted to the old version. This won't stop our input/output formats from being compatible with past and future releases. > Cassandra/Hadoop does not support current Hadoop releases > --------------------------------------------------------- > > Key: CASSANDRA-5201 > URL: https://issues.apache.org/jira/browse/CASSANDRA-5201 > Project: Cassandra > Issue Type: Bug > Components: Hadoop > Affects Versions: 1.2.0 > Reporter: Brian Jeltema > Assignee: Benjamin Coverston > Fix For: 2.0.6 > > Attachments: 5201_a.txt, hadoopCompat.patch, > hadoopcompat-trunk.patch, progressable-fix.patch, progressable-wrapper.patch > > > Using Hadoop 0.22.0 with Cassandra results in the stack trace below. > It appears that version 0.21+ changed org.apache.hadoop.mapreduce.JobContext > from a class to an interface. > Exception in thread "main" java.lang.IncompatibleClassChangeError: Found > interface org.apache.hadoop.mapreduce.JobContext, but class was expected > at > org.apache.cassandra.hadoop.ColumnFamilyInputFormat.getSplits(ColumnFamilyInputFormat.java:103) > at > org.apache.hadoop.mapreduce.JobSubmitter.writeNewSplits(JobSubmitter.java:445) > at > org.apache.hadoop.mapreduce.JobSubmitter.writeSplits(JobSubmitter.java:462) > at > org.apache.hadoop.mapreduce.JobSubmitter.submitJobInternal(JobSubmitter.java:357) > at org.apache.hadoop.mapreduce.Job$2.run(Job.java:1045) > at org.apache.hadoop.mapreduce.Job$2.run(Job.java:1042) > at java.security.AccessController.doPrivileged(Native Method) > at javax.security.auth.Subject.doAs(Subject.java:415) > at > org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1153) > at org.apache.hadoop.mapreduce.Job.submit(Job.java:1042) > at org.apache.hadoop.mapreduce.Job.waitForCompletion(Job.java:1062) > at MyHadoopApp.run(MyHadoopApp.java:163) > at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:69) > at MyHadoopApp.main(MyHadoopApp.java:82) > at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) > at > sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) > at > sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) > at java.lang.reflect.Method.invoke(Method.java:601) > at org.apache.hadoop.util.RunJar.main(RunJar.java:192) -- This message was sent by Atlassian JIRA (v6.2#6252)