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Posted to dev@kylin.apache.org by hongbin ma <ma...@apache.org> on 2015/08/03 05:37:47 UTC
Re: Found interface org.apache.hadoop.mapreduce.JobContext, but class
was expected
Thank your for your information, Yerui!
On Fri, Jul 31, 2015 at 6:25 PM, Yerui Sun <su...@gmail.com> wrote:
> Hi，liam
> I just met your same problem a few days ago and fixed it. The difference
> is hive-0.13.1 in our enviroment, but I think the reason is same.
> The reason is that org.apache.hadoop.mapreduce.JobContext is class in
> hadoop-1 but changed to interface in hadoop-2, and your
> hive-hcatalog-core.jar must be complied on hadoop-1.
> As I know, hive-hcatalog-core-0.13.1.jar in maven.apache.org is
> complied on hadoop-1, but not clear about hive 1.0.1. I think you should
> have a try, to re-complie your hive-hcatalog-core jar on hadoop-2.
>
> Good luck and looking forward your good news -:)
>
>
> Best Regards,
> Yerui Sun
> sunyerui@gmail.com
>
>
>
> > 在 2015年7月31日，16:40，liam <li...@gmail.com> 写道：
> >
> > Hi,
> > Can anyone help this?
> > Thx!
> >
> > 2015-07-30 18:11 GMT+08:00 liam <li...@gmail.com>:
> >
> >> Hi,all
> >> I failed in building the sample cube “kylin_sales_cube”,I found the
> error
> >> message from the logs(showed bellow).
> >> Did anyone get the same issue before? Any help would be highly
> >> appreciated.
> >> I use : hadoop(2.6.0) , hive(1.0.1) , kylin(0.7.2) , hbase(1.0.1.1)
> >>
> >> -
> >> -
> >>
> >> ——Here :ERROR Message-----
> >>
> >> - [pool-7-thread-2]:[2015-07-30
> >>
> 17:48:20,435][ERROR][org.apache.kylin.job.impl.threadpool.DefaultScheduler$JobRunner.run(DefaultScheduler.java:137)]
> >> - ExecuteException job:2da67e50-02f7-4a11-aa67-2a6a5dff5f36
> >> - org.apache.kylin.job.exception.ExecuteException:
> >> org.apache.kylin.job.exception.ExecuteException:
> >> java.lang.IncompatibleClassChangeError: Found interface
> >> org.apache.hadoop.mapreduce.JobContext, but class was expected
> >> - at
> >>
> org.apache.kylin.job.execution.AbstractExecutable.execute(AbstractExecutable.java:110)
> >> - at
> >>
> org.apache.kylin.job.impl.threadpool.DefaultScheduler$JobRunner.run(DefaultScheduler.java:133)
> >> - at
> >>
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
> >> - at
> >>
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
> >> - at java.lang.Thread.run(Thread.java:745)
> >> - Caused by: org.apache.kylin.job.exception.ExecuteException:
> >> java.lang.IncompatibleClassChangeError: Found interface
> >> org.apache.hadoop.mapreduce.JobContext, but class was expected
> >> - at
> >>
> org.apache.kylin.job.execution.AbstractExecutable.execute(AbstractExecutable.java:110)
> >> - at
> >>
> org.apache.kylin.job.execution.DefaultChainedExecutable.doWork(DefaultChainedExecutable.java:50)
> >> - at
> >>
> org.apache.kylin.job.execution.AbstractExecutable.execute(AbstractExecutable.java:106)
> >> - ... 4 more
> >> - Caused by: java.lang.IncompatibleClassChangeError: Found interface
> >> org.apache.hadoop.mapreduce.JobContext, but class was expected
> >> - at
> >>
> org.apache.hive.hcatalog.mapreduce.HCatBaseInputFormat.getSplits(HCatBaseInputFormat.java:102)
> >> - at
> >>
> org.apache.hadoop.mapreduce.JobSubmitter.writeNewSplits(JobSubmitter.java:493)
> >> - at
> >>
> org.apache.hadoop.mapreduce.JobSubmitter.writeSplits(JobSubmitter.java:510)
> >> - at
> >>
> org.apache.hadoop.mapreduce.JobSubmitter.submitJobInternal(JobSubmitter.java:394)
> >> - at org.apache.hadoop.mapreduce.Job$10.run(Job.java:1285)
> >> - at org.apache.hadoop.mapreduce.Job$10.run(Job.java:1282)
> >> - 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:1614)
> >> - at org.apache.hadoop.mapreduce.Job.submit(Job.java:1282)
> >> - at
> >>
> org.apache.kylin.job.hadoop.AbstractHadoopJob.waitForCompletion(AbstractHadoopJob.java:123)
> >> - at
> >>
> org.apache.kylin.job.hadoop.cube.FactDistinctColumnsJob.run(FactDistinctColumnsJob.java:80)
> >> - at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:70)
> >> - at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:84)
> >> - at
> >>
> org.apache.kylin.job.common.MapReduceExecutable.doWork(MapReduceExecutable.java:112)
> >> - at
> >>
> org.apache.kylin.job.execution.AbstractExecutable.execute(AbstractExecutable.java:106)
> >> - ... 6 more
> >>
> >>
> >>
>
>
--
Regards,
*Bin Mahone | 马洪宾*
Apache Kylin: http://kylin.io
Github: https://github.com/binmahone