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From "Owen O'Malley (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HADOOP-513) IllegalStateException is thrown by TaskTracker
Date Fri, 29 Sep 2006 20:38:25 GMT
     [ http://issues.apache.org/jira/browse/HADOOP-513?page=all ]

Owen O'Malley updated HADOOP-513:
---------------------------------

           Status: Patch Available  (was: In Progress)
    Fix Version/s: 0.7.0

> IllegalStateException is thrown by TaskTracker
> ----------------------------------------------
>
>                 Key: HADOOP-513
>                 URL: http://issues.apache.org/jira/browse/HADOOP-513
>             Project: Hadoop
>          Issue Type: Bug
>          Components: mapred
>    Affects Versions: 0.5.0
>            Reporter: Konstantin Shvachko
>         Assigned To: Owen O'Malley
>             Fix For: 0.7.0
>
>         Attachments: map-out-servlet.patch
>
>
> I am running TestDFSIO on a one node cluster and getting IllegalStateException for each
map task run as listed below.
> The same exceptions are flooding logs for TestMiniMRWithDFS on my nightly build for quite
a while now.
> Does anybody know what that is?
> My understanding is that if it is "illegal", then tests should fail.
> If not then it should be caught and ignored INTERNALLY.
> 06/09/06 14:54:50 INFO mapred.TaskTracker: task_0002_r_000000_0 0.25% reduce > copy
(3 of 4 at 0.00 MB/s) >
> 06/09/06 14:54:50 INFO mapred.TaskRunner: task_0002_r_000000_0 Need 1 map output(s)
> 06/09/06 14:54:50 INFO mapred.TaskRunner: task_0002_r_000000_0 Got 1 known map output
location(s); scheduling...
> 06/09/06 14:54:50 INFO mapred.TaskRunner: task_0002_r_000000_0 Scheduled 1 of 1 known
outputs (0 slow hosts and 0 dup hosts)
> 06/09/06 14:54:50 INFO mapred.TaskRunner: task_0002_r_000000_0 Copying task_0002_m_000003_0
output from ENO.
> 06/09/06 14:54:50 WARN /: /getMapOutput.jsp?map=task_0002_m_000003_0&reduce=0:
> java.lang.IllegalStateException
>     at org.mortbay.jetty.servlet.ServletHttpResponse.getWriter(ServletHttpResponse.java:561)
>     at org.apache.jasper.runtime.JspWriterImpl.initOut(JspWriterImpl.java:122)
>     at org.apache.jasper.runtime.JspWriterImpl.flushBuffer(JspWriterImpl.java:115)
>     at org.apache.jasper.runtime.PageContextImpl.release(PageContextImpl.java:190)
>     at org.apache.jasper.runtime.JspFactoryImpl.internalReleasePageContext(JspFactoryImpl.java:115)
>     at org.apache.jasper.runtime.JspFactoryImpl.releasePageContext(JspFactoryImpl.java:75)
>     at org.apache.hadoop.mapred.getMapOutput_jsp._jspService(getMapOutput_jsp.java:100)
>     at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:94)
>     at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
>     at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:427)
>     at org.mortbay.jetty.servlet.WebApplicationHandler.dispatch(WebApplicationHandler.java:475)
>     at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:567)
>     at org.mortbay.http.HttpContext.handle(HttpContext.java:1565)
>     at org.mortbay.jetty.servlet.WebApplicationContext.handle(WebApplicationContext.java:635)
>     at org.mortbay.http.HttpContext.handle(HttpContext.java:1517)
>     at org.mortbay.http.HttpServer.service(HttpServer.java:954)
>     at org.mortbay.http.HttpConnection.service(HttpConnection.java:814)
>     at org.mortbay.http.HttpConnection.handleNext(HttpConnection.java:981)
>     at org.mortbay.http.HttpConnection.handle(HttpConnection.java:831)
>     at org.mortbay.http.SocketListener.handleConnection(SocketListener.java:244)
>     at org.mortbay.util.ThreadedServer.handle(ThreadedServer.java:357)
>     at org.mortbay.util.ThreadPool$PoolThread.run(ThreadPool.java:534)
> 06/09/06 14:54:50 INFO mapred.TaskRunner: task_0002_r_000000_0 done copying task_0002_m_000003_0
output from ENO.

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