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Posted to common-dev@hadoop.apache.org by "Michael Bieniosek (JIRA)" <ji...@apache.org> on 2007/05/02 23:42:16 UTC
[jira] Commented: (HADOOP-1319) NPE in TaskLog.getTaskLogDir, as
called from tasklog.jsp
[ https://issues.apache.org/jira/browse/HADOOP-1319?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12493222 ]
Michael Bieniosek commented on HADOOP-1319:
-------------------------------------------
The plaintext=true part seems crucial to the NPE.
> NPE in TaskLog.getTaskLogDir, as called from tasklog.jsp
> --------------------------------------------------------
>
> Key: HADOOP-1319
> URL: https://issues.apache.org/jira/browse/HADOOP-1319
> Project: Hadoop
> Issue Type: Bug
> Components: mapred
> Affects Versions: 0.12.3
> Reporter: Michael Bieniosek
> Priority: Minor
>
> Calling TaskCompletionEvent.getTaskTrackerHttp() gives me an url that looks like http://tasktracker.host:50060/tasklog.jsp?plaintext=true&taskid=task_0264_m_000083_0&all=true. If I try to access that URL, I get a Jetty 500 error. In my tasktracker logs, I then see:
> 2007-05-02 21:32:16,107 WARN /: /tasklog.jsp?taskid=task_0261_m_000000_0&all=true&
> plaintext=true:
> java.lang.NullPointerException
> at org.apache.hadoop.mapred.TaskLog.getTaskLogDir(TaskLog.java:49)
> at org.apache.hadoop.mapred.TaskLog.access$000(TaskLog.java:33)
> at org.apache.hadoop.mapred.TaskLog$Reader.<init>(TaskLog.java:313)
> at org.apache.hadoop.mapred.tasklog_jsp.printTaskLog(tasklog_jsp.java:26)
> at org.apache.hadoop.mapred.tasklog_jsp._jspService(tasklog_jsp.java:232)
> 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(WebApplication
> Handler.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(WebApplicationCo
> ntext.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:24
> 4)
> at org.mortbay.util.ThreadedServer.handle(ThreadedServer.java:357)
> at org.mortbay.util.ThreadPool$PoolThread.run(ThreadPool.java:534)
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