Your field1 data can be split over multiple reducers. Is it possible to emit field1 as the key from the reducer (in case you do not need the ip anymore)?
________________________________ From: leibnitz <se3g2...@gmail.com> To: hadoop-u...@lucene.apache.org Sent: Mon, 11 April, 2011 12:02:46 PM Subject: how to sort the output by vlaue in reduce instead of by key? yes,my key is ip,and value is a object(which inherited hadoop Record class,and will be converted a visualized data),e.g.: key field1,field2,field3(these are properties belong to object) 12.121.23.121 121,11,/img/dd.jpg 32.121.23.222 221,11,/img/xx.jpg 1.i want to sort by field1 ,but it is sorted by key in reduce by default,how to do? 2.by the way,when my value(object) inherited to the Record,why the output sequence are: data1 data2 ... -- View this message in context: http://lucene.472066.n3.nabble.com/how-to-sort-the-output-by-vlaue-in-reduce-instead-of-by-key-tp2805541p2805541.html Sent from the Hadoop lucene-users mailing list archive at Nabble.com.
