Hi Can I have a look at your project report on Pig and Hive query execution?
I stumbled upon it but couldnt download it. Thanks Kumar On Mon, May 3, 2010 at 1:57 PM, Vandana Ayyalasomayajula <[email protected]>wrote: > Hi All, > > I am trying to configure fair scheduler in hadoop. I have followed all the > instructions given in hadoop common docs ( > http://hadoop.apache.org/common/docs/current/fair_scheduler.html#Configuring+the+Fair+scheduler). > But when I try to click on the job queue in the job tracker page , I see > the following exception: > > java.lang.NullPointerException > at > org.apache.hadoop.mapred.FairScheduler.getJobs(FairScheduler.java:765) > at > org.apache.hadoop.mapred.jobqueue_005fdetails_jsp._jspService(jobqueue_005fdetails_jsp.java:64) > at > org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:97) > at javax.servlet.http.HttpServlet.service(HttpServlet.java:820) > at > org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:502) > at > org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:363) > at > org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216) > at > org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:181) > at > org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:766) > at > org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:417) > at > org.mortbay.jetty.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:230) > at > org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152) > at org.mortbay.jetty.Server.handle(Server.java:324) > at > org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:534) > at > org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:864) > at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:533) > at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:207) > at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:403) > at > org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:409) > at > org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:522) > > If anybody has come across this problem, please do let me know where I am > going wrong. > > Thanks for the help. > Vandana >
