This looks to be HDFS specific question. please send it to correct mailing list. cc'ed to mapreduce user if you have not registered for hdfs.
Please look at the previous discussion in mailing list about your question. http://lucene.472066.n3.nabble.com/How-HDFS-decides-where-to-put-the-block-td2834463.html Regards, Uma ________________________________ From: Alieh Saeedi [aliehsae...@yahoo.com] Sent: Saturday, February 04, 2012 1:16 PM To: mapreduce-user@hadoop.apache.org Subject: reducers output Hi 1- How does Hadoop decide where to save file blocks (I mean all files include files written by reducers)? Could you please give me a reference link?