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From buddhika chamith <>
Subject Getting CNF during map reduce execution
Date Thu, 05 Apr 2012 17:12:40 GMT
Hi All,

I am trying to use hive inside an OSGi enviornment. So far I faced several
OSGi issues in hive and some issues related to JDO implementation used
(datanucleaus) under the OSGi enviornemnt and was able to overcome them.
However when I run a query involving a map reduce operation I am getting a
ClassNotFound exception from hadoop side. (Hadoop is running in pseudo
distributed mode in the local machine).

java.lang.RuntimeException: java.lang.RuntimeException:
	at org.apache.hadoop.conf.Configuration.getClass(
	at org.apache.hadoop.mapred.JobConf.getOutputCommitter(
	at org.apache.hadoop.mapred.Task.initialize(

I think this is probably due to some jar/ resource not being bundled
properly in to the deployed archive to Hadoop. Would some one be able to
explain a bit of how the job submission part from Hive to Hadoop works and
any possible reason for this behaviour? Any pointers to look in to the code
is also appreciated.


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