You might be able to use hars: http://hadoop.apache.org/core/docs/current/hadoop_archives.html
On 10/2/08 2:51 PM, "Steve Gao" <[EMAIL PROTECTED]> wrote: Anybody knows? Thanks a lot. --- On Thu, 10/2/08, Steve Gao <[EMAIL PROTECTED]> wrote: From: Steve Gao <[EMAIL PROTECTED]> Subject: How to concatenate hadoop files to a single hadoop file To: core-user@hadoop.apache.org Cc: [EMAIL PROTECTED] Date: Thursday, October 2, 2008, 3:17 PM Suppose I have 3 files in Hadoop that I want to "cat" them to a single file. I know it can be done by "hadoop dfs -cat" to a local file and updating it to Hadoop. But it's very expensive for large files. Is there an internal way to do this in Hadoop itself? Thanks
