When you open a SequenceFile, there are API calls getKeyClass and getValueClass which will give you the Writable classes.
On Thu, Dec 29, 2011 at 12:42 PM, Sean Owen <[email protected]> wrote: > SequenceFile isn't quite one format -- it's a container format for > key-value pairs, where keys and values can be of any type. Yes it's > the same SequenceFile in Hadoop and Mahout, though one file written > using SequenceFile may hold completely different data types. > > I suppose it's like saying that both XHTML and ebXML are both XML > documents, but, they are not all the same format. You can deal with > both as XML files; you can't render ebXML as a web page though. > > On Thu, Dec 29, 2011 at 9:32 AM, Josh Patterson <[email protected]> wrote: >> They both map to the same class in hadoop: >> >> http://hadoop.apache.org/common/docs/current/api/org/apache/hadoop/io/SequenceFile.html >> >> JP >> >> On Thu, Dec 29, 2011 at 3:32 AM, rahul raghavendhra >> <[email protected]> wrote: >>> Thanks jose, >>> thank you for your reply, i have one more silly doubt, mahout sequence >>> file format and hadoop sequence file format are same or different ? >>> please reply >>> ./rahul >>> -- Lance Norskog [email protected]
