<%@ page contentType="text/html; charset=UTF-8" import="javax.servlet.*" import="javax.servlet.http.*" import="java.io.*" import="java.util.*" import="org.apache.hadoop.mapred.*" import="org.apache.hadoop.util.*" %> <% JobTracker tracker = (JobTracker) application.getAttribute("job.tracker"); String trackerName = StringUtils.simpleHostname(tracker.getJobTrackerMachine()); %> <%! private void printFailedAttempts(JspWriter out, JobTracker tracker, JobID jobId, TaskInProgress tip, TaskStatus.State failState) throws IOException { TaskStatus[] statuses = tip.getTaskStatuses(); TaskID tipId = tip.getTIPId(); for(int i=0; i < statuses.length; ++i) { TaskStatus.State taskState = statuses[i].getRunState(); if ((failState == null && (taskState == TaskStatus.State.FAILED || taskState == TaskStatus.State.KILLED)) || taskState == failState) { String taskTrackerName = statuses[i].getTaskTracker(); TaskTrackerStatus taskTracker = tracker.getTaskTracker(taskTrackerName); out.print("" + statuses[i].getTaskID() + "" + tipId + ""); if (taskTracker == null) { out.print("" + taskTrackerName + ""); } else { out.print("" + taskTracker.getHost() + ""); } out.print("" + taskState + ""); out.print("
");
        String[] failures = 
                     tracker.getTaskDiagnostics(statuses[i].getTaskID());
        if (failures == null) {
          out.print(" ");
        } else {
          for(int j = 0 ; j < failures.length ; j++){
            out.print(failures[j]);
            if (j < (failures.length - 1)) {
              out.print("\n-------\n");
            }
          }
        }
        out.print("
"); out.print(""); String taskLogUrl = null; if (taskTracker != null) { taskLogUrl = TaskLogServlet.getTaskLogUrl(taskTracker.getHost(), String.valueOf(taskTracker.getHttpPort()), statuses[i].getTaskID().toString()); } if (taskLogUrl != null) { String tailFourKBUrl = taskLogUrl + "&start=-4097"; String tailEightKBUrl = taskLogUrl + "&start=-8193"; String entireLogUrl = taskLogUrl; out.print("Last 4KB
"); out.print("Last 8KB
"); out.print("All
"); } else { out.print("n/a"); // task tracker was lost } out.print(""); out.print("\n"); } } } private void printFailures(JspWriter out, JobTracker tracker, JobID jobId, String kind, String cause) throws IOException { JobInProgress job = (JobInProgress) tracker.getJob(jobId); if (job == null) { out.print("Job " + jobId + " not found.
\n"); return; } boolean includeMap = false; boolean includeReduce = false; if (kind == null) { includeMap = true; includeReduce = true; } else if ("map".equals(kind)) { includeMap = true; } else if ("reduce".equals(kind)) { includeReduce = true; } else if ("all".equals(kind)) { includeMap = true; includeReduce = true; } else { out.print("Kind " + kind + " not supported.
\n"); return; } TaskStatus.State state = null; try { if (cause != null) { state = TaskStatus.State.valueOf(cause.toUpperCase()); if (state != TaskStatus.State.FAILED && state != TaskStatus.State.KILLED) { out.print("Cause '" + cause + "' is not an 'unsuccessful' state.
\n"); return; } } } catch (IllegalArgumentException e) { out.print("Cause '" + cause + "' not supported.
\n"); return; } out.print(""); out.print("" + "\n"); if (includeMap) { TaskInProgress[] tips = job.getMapTasks(); for(int i=0; i < tips.length; ++i) { printFailedAttempts(out, tracker, jobId, tips[i], state); } } if (includeReduce) { TaskInProgress[] tips = job.getReduceTasks(); for(int i=0; i < tips.length; ++i) { printFailedAttempts(out, tracker, jobId, tips[i], state); } } out.print("
AttemptTaskMachineStateErrorLogs
\n"); } %> <% String jobId = request.getParameter("jobid"); if (jobId == null) { out.println("

Missing 'jobid'!

"); return; } JobID jobIdObj = JobID.forName(jobId); String kind = request.getParameter("kind"); String cause = request.getParameter("cause"); %> Hadoop <%=jobId%> failures on <%=trackerName%>

Hadoop <%=jobId%> failures on <%=trackerName%>

<% printFailures(out, tracker, jobIdObj, kind, cause); %>
Go back to JobTracker
<% out.println(ServletUtil.htmlFooter()); %>