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From "Stefan Groschupf (JIRA)" <j...@apache.org>
Subject [jira] Created: (HADOOP-77) hang / crash when input folder does not exists.
Date Mon, 13 Mar 2006 02:06:39 GMT
hang / crash when input folder does not exists.
-----------------------------------------------

         Key: HADOOP-77
         URL: http://issues.apache.org/jira/browse/HADOOP-77
     Project: Hadoop
        Type: Bug
  Components: mapred  
    Versions: 0.1    
    Reporter: Stefan Groschupf
    Priority: Critical


The jobtracker hangs and jobtracker info server throws Internal Server Error when until task
initialization a exception will be thrown. 
Future jobs will no processed and also the job info server does not show any information since
it throws a a http 500.

This is a show blocker especially when hadoop is shell script driven. 


060312 235707 TaskInProgress tip_6jd6g8 has failed 4 times.
060312 235707 Aborting job job_hsg7y8
060312 235708 Server connection on port 50020 from  XX.100.XXX.2: exiting
060312 235709 Server connection on port 50020 from  XX.100.XXX.2: starting
060312 235710 parsing jar:file:/home/myuser/nutch/lib/hadoop-0.1-dev.jar!/hadoop-default.xml
060312 235710 parsing jar:file:/home/myuser/nutch/lib/hadoop-0.1-dev.jar!/mapred-default.xml
060312 235710 parsing file:/home/myuser/nutch/conf/hadoop-site.xml
060312 235710 parsing jar:file:/home/myuser/nutch/lib/hadoop-0.1-dev.jar!/hadoop-default.xml
060312 235710 parsing jar:file:/home/myuser/nutch/lib/hadoop-0.1-dev.jar!/mapred-default.xml
060312 235710 parsing file:/home/myuser/nutch/conf/hadoop-site.xml
060312 235710 parsing jar:file:/home/myuser/nutch/lib/hadoop-0.1-dev.jar!/hadoop-default.xml
060312 235710 parsing jar:file:/home/myuser/nutch/lib/hadoop-0.1-dev.jar!/mapred-default.xml
060312 235710 parsing /u1/hadoop-data/tmp/hadoop/mapred/local/jobTracker/job_2p6ywq.xml
060312 235710 parsing file:/home/myuser/nutch/conf/hadoop-site.xml
060312 235711 parsing jar:file:/home/myuser/nutch/lib/hadoop-0.1-dev.jar!/hadoop-default.xml
060312 235711 parsing jar:file:/home/myuser/nutch/lib/hadoop-0.1-dev.jar!/mapred-default.xml
060312 235711 parsing /u1/hadoop-data/tmp/hadoop/mapred/local/jobTracker/job_2p6ywq.xml
060312 235711 parsing file:/home/myuser/nutch/conf/hadoop-site.xml
060312 235712 job init failed
java.io.IOException: Not a file: /user/myuser/segments/20060312214035/crawl_fetch/part-00001/data
        at org.apache.hadoop.mapred.InputFormatBase.getSplits(InputFormatBase.java:99)
        at org.apache.hadoop.mapred.JobInProgress.initTasks(JobInProgress.java:127)
        at org.apache.hadoop.mapred.JobTracker$JobInitThread.run(JobTracker.java:208)
        at java.lang.Thread.run(Thread.java:595)
Exception in thread "Thread-20" java.lang.NullPointerException
        at org.apache.hadoop.mapred.JobInProgress.kill(JobInProgress.java:437)
        at org.apache.hadoop.mapred.JobTracker$JobInitThread.run(JobTracker.java:212)
        at java.lang.Thread.run(Thread.java:595)
060312 235713 Server connection on port 50020 from  XX.100.XXX.2: exiting

...


60312 235715 parsing file:/home/myuser/nutch/conf/hadoop-site.xml
060312 235755 /jobtracker.jsp: 
java.lang.NullPointerException
        at org.apache.hadoop.mapred.JobInProgress.finishedMaps(JobInProgress.java:205)
        at org.apache.hadoop.mapred.jobtracker_jsp.generateJobTable(jobtracker_jsp.java:67)
        at org.apache.hadoop.mapred.jobtracker_jsp._jspService(jobtracker_jsp.java:130)
        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)
060313 014526 /jobtracker.jsp: 


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