Hello, What version of Hadoop are you using?
On Thu, Jul 28, 2011 at 6:03 PM, Florin P <florinp...@yahoo.com> wrote: > Hello! > I would like to know how to obtain for a file (via Java API) the following > information > - how many blocks occupies in the HDFS Is this request per file? or overall? [If overall, I think metrics are your best bet] > -which are the machines where the blocks were replicated If this request is per-file, then FileSystem#getBlockLocations(…) API can help you. Just request it over the entire size of the file (FileStatus information can be got via FileSystem#getFileStatus(…)) -- Harsh J
