The NameNode doesn't care how you wrote the file i.e. either via 'bin/hadoop dfs -put <>' or via a MR job.
Arun On Jan 29, 2012, at 10:09 PM, aliyeh saeedi wrote: > I studied it, but I could not get the point. I mean if I save reducer's > output with my own selected names, does NameNode behave with them like other > files? > regards. > > From: Ashwanth Kumar <ashwanthku...@googlemail.com> > To: mapreduce-user@hadoop.apache.org; aliyeh saeedi <a1_sae...@yahoo.com> > Sent: Monday, 30 January 2012, 9:25 > Subject: Re: Fw: reducers outputs > > You should have a look at this - > http://hadoop.apache.org/common/docs/current/api/org/apache/hadoop/mapred/FileOutputFormat.html > > > - Ashwanth Kumar > > On Mon, Jan 30, 2012 at 11:17 AM, aliyeh saeedi <a1_sae...@yahoo.com> wrote: > > > > I want to save them with my own names, How NameNode will keep their names? > > From: Joey Echeverria <j...@cloudera.com> > To: mapreduce-user@hadoop.apache.org; aliyeh saeedi <a1_sae...@yahoo.com> > Sent: Sunday, 29 January 2012, 17:10 > Subject: Re: reducers outputs > > Reduce output is normally stored in HDFS, just like your other files. > Are you seeing different behavior? > > -Joey > > On Sun, Jan 29, 2012 at 1:05 AM, aliyeh saeedi <a1_sae...@yahoo.com> wrote: > > Hi > > I want to save reducers outputs like other files in Hadoop. Does NameNode > > keep any information about them? How can I do this? > > Or can I add a new component to Hadoop like NameNode and make JobTracker to > > consult with it too (I mean I want to make JobTracker to consult with > > NameNode AND myNewComponent both)? > > > > -- > Joseph Echeverria > Cloudera, Inc. > 443.305.9434 > > > > > > > -- Arun C. Murthy Hortonworks Inc. http://hortonworks.com/
