The advantage of a hadoop archive files is it lets you access the files stored in it directly. For example, if you archived three files (a.txt, b.txt, c.txt) in an archive called foo.har. You could cat one of the three files using the hadoop command line:
hadoop fs -cat har:///user/joey/out/foo.har/a.txt You can also copy files out of the archive or use files in the archive as input to map reduce jobs. -Joey On Mon, Jun 27, 2011 at 3:06 AM, Rita <[email protected]> wrote: > We use hadoop/hdfs to archive data. I archive a lot of file by creating one > large tar file and then placing to hdfs. Is it better to use hadoop archive > for this or is it essentially the same thing? > > -- > --- Get your facts first, then you can distort them as you please.-- > -- Joseph Echeverria Cloudera, Inc. 443.305.9434
