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MapReduce >> mail # dev >> What protocols are used in Mappers ?


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What protocols are used in Mappers ?
Hi All

My map task failed stating the error message "No protocol specified".
What does this mean ?

Regards
Rohit Sarewar
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