org.apache.hadoop.mapred
Class TaskLogServlet

java.lang.Object
  javax.servlet.GenericServlet
      javax.servlet.http.HttpServlet
          org.apache.hadoop.mapred.TaskLogServlet

All Implemented Interfaces:

Serializable, javax.servlet.Servlet, javax.servlet.ServletConfig

public class TaskLogServlet
extends javax.servlet.http.HttpServlet

A servlet that is run by the TaskTrackers to provide the task logs via http.

See Also:

Serialized Form

Constructor Summary

TaskLogServlet()

Method Summary

void	doGet(javax.servlet.http.HttpServletRequest request, javax.servlet.http.HttpServletResponse response) Get the logs via http.
static String	getTaskLogUrl(String taskTrackerHostName, String httpPort, String taskAttemptID) Construct the taskLogUrl

Methods inherited from class javax.servlet.http.HttpServlet

doDelete, doHead, doOptions, doPost, doPut, doTrace, getLastModified, service, service

Methods inherited from class javax.servlet.GenericServlet

destroy, getInitParameter, getInitParameterNames, getServletConfig, getServletContext, getServletInfo, getServletName, init, init, log, log

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

TaskLogServlet

public TaskLogServlet()

Method Detail

getTaskLogUrl

public static String getTaskLogUrl(String taskTrackerHostName,
                                   String httpPort,
                                   String taskAttemptID)

Construct the taskLogUrl

Parameters:

taskTrackerHostName -

httpPort -

taskAttemptID -

Returns:

the taskLogUrl

doGet

public void doGet(javax.servlet.http.HttpServletRequest request,
                  javax.servlet.http.HttpServletResponse response)
           throws javax.servlet.ServletException,
                  IOException

Get the logs via http.

Overrides:

doGet in class javax.servlet.http.HttpServlet

Throws:

javax.servlet.ServletException

IOException