Brian Jeltema created CASSANDRA-5201:
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Summary: 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
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)
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