Hi, I am having problems with changing the default hadoop scheduler (i assume that the default scheduler is a FIFO scheduler).
I am following the guide located in hadoop/docs directory however I am not able to run it. Link for scheduling administration returns an http error 404 ( http://localhost:50030/scheduler ). In the UI under scheduling information I can see only one queue named "default". mapred-site.xml file is accessible because when changing a port for a jobtracker I can see a daemon running with a changed port. Variable $HADOOP_CONFIG_DIR was added to .bashrc, however that did not solve the problem. I tried to rebuild hadoop, manualy place the fair scheduler jar in hadoop/lib and changed the hadoop classpath in hadoop-env.sh to point to the lib folder, but without success. The only info of the scheduler that is seen in the jobtracker log is the folowing info: Scheduler configured with (memSizeForMapSlotOnJT, memSizeForReduceSlotOnJT, > limitMaxMemForMapTasks, limitMaxMemForReduceTasks) (-1, -1, -1, -1) > I am working on this several days and running out of ideas... I am wondering how to fix it and where to check currently active scheduler parameters? Config files: mapred-site.xml <http://pastebin.com/HmDfWqE1> allocation.xml <http://pastebin.com/Uexq7uHV> Tried versions: 0.20.203 and 204 Thank you
