Owen, Yes I am using Hadoop 0.16.1 . No, the jira doesn't relate to my case. The message "Hook previously registered" comes up only if I try to access files on S3 from my java application running on EC2 . The same application runs smoothly if the input file is copied to image on EC2 and accessed from there. ------------------------------------------------------------------------------ Owen O'Malley <[EMAIL PROTECTED]> wrote: On Mar 25, 2008, at 1:07 PM, Prasan Ary wrote:
> I am running hadoop on EC2. I want to run a jar MR application on > EC2 such that input and output files are on S3. That is an expected case, although I haven't ever used EC2. > When I try to run the jar file now, I get the message "Hook > previously registered" and the application dies. > > Any Idea what might have gone wrong? I wonder if it is related to: https://issues.apache.org/jira/browse/HADOOP-3027 Are you running 0.16.1? -- Owen --------------------------------- Be a better friend, newshound, and know-it-all with Yahoo! Mobile. Try it now.
