📄 jobdetails.jsp
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<%@ 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.*"%><% String jobid = request.getParameter("jobid"); JobTracker tracker = JobTracker.getTracker(); JobInProgress job = (JobInProgress) tracker.getJob(jobid); JobProfile profile = (job != null) ? (job.getProfile()) : null; JobStatus status = (job != null) ? (job.getStatus()) : null; TaskReport[] mapTaskReports = (job != null) ? tracker.getMapTaskReports(jobid) : null; TaskReport[] reduceTaskReports = (job != null) ? tracker.getReduceTaskReports(jobid) : null;%><html><title>Hadoop MapReduce Job Details</title><body><% if (job == null) { %> No job found<br> <% } else { %><h1>Job '<%=jobid%>'</h1><b>Job File:</b> <%=profile.getJobFile()%><br><b>The job started at:</b> <%= new Date(job.getStartTime())%><br><% if (status.getRunState() == JobStatus.RUNNING) { out.print("The job is still running.<br>\n"); } else if (status.getRunState() == JobStatus.SUCCEEDED) { out.print("<b>The job completed at:</b> " + new Date(job.getFinishTime()) + "<br>\n"); } else if (status.getRunState() == JobStatus.FAILED) { out.print("<b>The job failed at:</b> " + new Date(job.getFinishTime()) + "<br>\n"); }%><hr><h2>Map Tasks</h2> <center> <table border=2 cellpadding="5" cellspacing="2"> <tr><td align="center">Task Id</td><td>Complete</td><td>State</td><td>Errors</td></tr> <% for (int i = 0; i < mapTaskReports.length; i++) { TaskReport report = mapTaskReports[i]; out.print("<tr><td>" + report.getTaskId() + "</td>"); out.print("<td>" + report.getProgress() + "</td>"); out.print("<td>" + report.getState() + "</td>"); String[] diagnostics = report.getDiagnostics(); for (int j = 0; j < diagnostics.length ; j++) { out.print("<td>" + diagnostics[j] + "</td>"); } out.print("</tr>\n"); } %> </table> </center><hr><h2>Reduce Tasks</h2> <center> <table border=2 cellpadding="5" cellspacing="2"> <tr><td align="center">Task Id</td><td>Complete</td><td>State</td><td>Errors</td></tr> <% for (int i = 0; i < reduceTaskReports.length; i++) { TaskReport report = reduceTaskReports[i]; out.print("<tr><td>" + report.getTaskId() + "</td>"); out.print("<td>" + report.getProgress() + "</td>"); out.print("<td>" + report.getState() + "</td>"); String[] diagnostics = report.getDiagnostics(); for (int j = 0; j < diagnostics.length ; j++) { out.print("<td>" + diagnostics[j] + "</td>"); } out.print("</tr>\n"); } %> </table> </center> <% }%><hr><a href="/jobtracker.jsp">Go back to JobTracker</a><br><a href="http://lucene.apache.org/hadoop">Hadoop</a>, 2006.<br></body></html>⌨️ 快捷键说明
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