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HBase, mail # user - Why Hadoop can't find Reducer when Mapper reads data from HBase?


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Re: Why Hadoop can't find Reducer when Mapper reads data from HBase?
yonghu 2012-07-13, 05:45
Strage thing is the same program works fine in the cluster.  By the
way, also in pseudo mode when MapReduce read data from Cassandra in
Map phase and transferred to Reduce phase, the same error happened.

regards!

Yong

On Thu, Jul 12, 2012 at 2:01 PM, Stack <[EMAIL PROTECTED]> wrote:
> On Thu, Jul 12, 2012 at 1:15 PM, yonghu <[EMAIL PROTECTED]> wrote:
>> java.lang.RuntimeException: java.lang.ClassNotFoundException:
>> com.mapreducetablescan.MRTableAccess$MTableReducer;
>>
>> Does anybody know why?
>>
>
> Its not in your job jar?  Check the job jar (jar -tf JAR_FILE).
>
> St.Ack