Hello, Could someone please help me to understand these configuration parameters in depth.
mapred.map.tasks and mapred.reduce.tasks It is mentioned that default value of these parameters is 2 and 1. *What does it mean?* Does it mean 2 maps and 1 reduce per node. Does it mean 2 maps and 1 reduce in total (for the cluster). Or Does it mean 2 maps and 1 reduce per Job. Can we change maps and reduce for default example Jobs such as Wordcount etc. too? At the same time, I believe that total number of maps are dependent upon input data size? Please help me understand these two parameters clearly. Thanks in advance, Amit ----- Sangroya -- View this message in context: http://lucene.472066.n3.nabble.com/mapred-map-tasks-and-mapred-reduce-tasks-parameter-meaning-tp3766224p3766224.html Sent from the Hadoop lucene-users mailing list archive at Nabble.com.
