Home | About | Sematext search-lucene.com search-hadoop.com
NEW: Monitor These Apps!
elasticsearch, apache solr, apache hbase, hadoop, redis, casssandra, amazon cloudwatch, mysql, memcached, apache kafka, apache zookeeper, apache storm, ubuntu, centOS, red hat, debian, puppet labs, java, senseiDB
 Search Hadoop and all its subprojects:

Switch to Threaded View
HBase >> mail # user >> Why Hadoop can't find Reducer when Mapper reads data from HBase?


Copy link to this message
-
Re: Why Hadoop can't find Reducer when Mapper reads data from HBase?
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
NEW: Monitor These Apps!
elasticsearch, apache solr, apache hbase, hadoop, redis, casssandra, amazon cloudwatch, mysql, memcached, apache kafka, apache zookeeper, apache storm, ubuntu, centOS, red hat, debian, puppet labs, java, senseiDB