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https://issues.apache.org/jira/browse/MAPREDUCE-3674?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Harsh J updated MAPREDUCE-3674:
-------------------------------
Attachment: MAPREDUCE-3674.patch
Fixed. No Guava on 1.x branch so could not use the Precondition util.
> If invoked with no queueName request param, jobqueue_details.jsp injects a
> null queue name into schedulers.
> -----------------------------------------------------------------------------------------------------------
>
> Key: MAPREDUCE-3674
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-3674
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Components: jobtracker
> Affects Versions: 1.0.0
> Reporter: Harsh J
> Assignee: Harsh J
> Priority: Critical
> Attachments: MAPREDUCE-3674.patch, MAPREDUCE-3674.patch
>
>
> When you access /jobqueue_details.jsp manually, instead of via a link, it has
> queueName set to null internally and this goes for a lookup into the
> scheduling info maps as well.
> As a result, if using FairScheduler, a Pool with String name = null gets
> created and this brings the scheduler down. I have not tested what happens to
> the CapacityScheduler, but ideally if no queueName is set in that jsp, it
> should fall back to 'default'. Otherwise, this brings down the JobTracker
> completely.
> FairScheduler must also add a check to not create a pool with 'null' name.
> The following is the strace that ensues:
> {code}
> ERROR org.mortbay.log: /jobqueue_details.jsp
> java.lang.NullPointerException
> at
> org.apache.hadoop.mapred.jobqueue_005fdetails_jsp._jspService(jobqueue_005fdetails_jsp.java:71)
>
> 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:511)
> at
> org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1221)
>
> at
> org.apache.hadoop.http.HttpServer$QuotingInputFilter.doFilter(HttpServer.java:829)
>
> at
> org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1212)
>
> at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:399)
> at
> org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216)
> at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:182)
> at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:766)
> at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:450)
> at
> org.mortbay.jetty.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:230)
>
> at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152)
> at org.mortbay.jetty.Server.handle(Server.java:326)
> at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:542)
> at
> org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:928)
>
> at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:549)
> at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:212)
> at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:404)
> at
> org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:410)
> at
> org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:582)
> INFO org.apache.hadoop.ipc.Server: IPC Server handler 2 on 9001, call
> heartbeat from XYZ:MNOP: error: java.io.IOException:
> java.lang.NullPointerException
> java.io.IOException: java.lang.NullPointerException
> at
> org.apache.hadoop.mapred.SchedulingAlgorithms$FairShareComparator.compare(SchedulingAlgorithms.java:95)
>
> at
> org.apache.hadoop.mapred.SchedulingAlgorithms$FairShareComparator.compare(SchedulingAlgorithms.java:68)
>
> at java.util.Arrays.mergeSort(Unknown Source)
> at java.util.Arrays.sort(Unknown Source)
> at java.util.Collections.sort(Unknown Source)
> at org.apache.hadoop.mapred.FairScheduler.assignTasks(FairScheduler.java:435)
> at org.apache.hadoop.mapred.JobTracker.heartbeat(JobTracker.java:3226)
> at sun.reflect.GeneratedMethodAccessor3.invoke(Unknown Source)
> at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
> at java.lang.reflect.Method.invoke(Unknown Source)
> at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:557)
> at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:1434)
> at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:1430)
> at java.security.AccessController.doPrivileged(Native Method)
> at javax.security.auth.Subject.doAs(Unknown Source)
> at
> org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1127)
>
> at org.apache.hadoop.ipc.Server$Handler.run(Server.java:1428)
> {code}
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