Sun JDK is what its been thoroughly tested upon. You can run on OpenJDK perhaps, but YMMV.
Hadoop has a strict requirement of having a proper network setup before use. What port range did you open? TaskTracker would use 50060 for intercommunication (over lo, if its bound to that). Check if your daemons are binding to the right interfaces and have proper name->IP resolutions, and then check if that port is allowed communication upon. On Fri, Aug 5, 2011 at 2:20 PM, Manish <[email protected]> wrote: > Hi, > > Has anybody been able to run hadoop standalone mode on fedora 15 ? > I have installed it correctly. It runs till map but gets stuck in reduce. > It fails with the error "mapred.JobClient Status : FAILED Too many > fetch-failures". I read several articles on net for this problem, all of them > say about the /etc/hosts and some say firewall issue. > I enabled firewall for the port range and also checked my /etc/hosts file. its > content is "localhost" and that is the only line in it. > > Is sun-java absolute necessary or open-jdk will work ? > > can someone give me some suggestion to get along with this problem ? > > Thanks & regard > > Manish > > -- Harsh J
