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Posted to general@hadoop.apache.org by Vandana Ayyalasomayajula <va...@uci.edu> on 2010/05/03 06:57:14 UTC
Problem with configuring Fair Schduler
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
Re: Problem with configuring Fair Schduler
Posted by Kumar Harshit <hk...@gmail.com>.
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
<va...@uci.edu>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
>