📄 jobtasks.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.*" import="org.apache.hadoop.util.*" import="java.lang.Integer" import="java.text.SimpleDateFormat"%><%! static SimpleDateFormat dateFormat = new SimpleDateFormat("d-MMM-yyyy HH:mm:ss") ; %><% String jobid = request.getParameter("jobid"); String type = request.getParameter("type"); String pagenum = request.getParameter("pagenum"); int pnum = Integer.parseInt(pagenum); int next_page = pnum+1; int numperpage = 2000; JobTracker tracker = JobTracker.getTracker(); String trackerLabel = StringUtils.simpleHostname(tracker.getJobTrackerMachine()); JobInProgress job = (JobInProgress) tracker.getJob(jobid); JobProfile profile = (job != null) ? (job.getProfile()) : null; JobStatus status = (job != null) ? (job.getStatus()) : null; TaskReport[] reports = null; int start_index = (pnum - 1) * numperpage; int end_index = start_index + numperpage; int report_len = 0; if ("map".equals(type)){ reports = (job != null) ? tracker.getMapTaskReports(jobid) : null; } else{ reports = (job != null) ? tracker.getReduceTaskReports(jobid) : null; }%><html><title>Hadoop <%=type%> task list for <%=jobid%> on <%=trackerLabel%></title><body><h1>Hadoop <%=type%> task list for <a href="/jobdetails.jsp?jobid=<%=jobid%>"><%=jobid%></a> on <a href="/jobtracker.jsp"><%=trackerLabel%></a></h1><% if (job == null) { out.print("<b>Job " + jobid + " not found.</b><br>\n"); return; } report_len = reports.length; if (report_len <= start_index) { out.print("<b>No such tasks</b>"); } else { out.print("<hr>"); out.print("<h2>Tasks</h2>"); out.print("<center>"); out.print("<table border=2 cellpadding=\"5\" cellspacing=\"2\">"); out.print("<tr><td align=\"center\">Task</td><td>Complete</td><td>Status</td><td>Start Time</td><td>Finish Time</td><td>Errors</td></tr>"); if (end_index > report_len){ end_index = report_len; } for (int i = start_index ; i < end_index; i++) { TaskReport report = reports[i]; out.print("<tr><td><a href=\"taskdetails.jsp?jobid=" + jobid + "&taskid=" + report.getTaskId() + "\">" + report.getTaskId() + "</a></td>"); out.print("<td>" + StringUtils.formatPercent(report.getProgress(),2) + "</td>"); out.print("<td>" + report.getState() + "</td>"); out.println("<td>" + StringUtils.getFormattedTimeWithDiff(dateFormat, report.getStartTime(),0) + "</td>"); out.println("<td>" + StringUtils.getFormattedTimeWithDiff(dateFormat, report.getFinishTime(), report.getStartTime()) + "</td>"); String[] diagnostics = report.getDiagnostics(); for (int j = 0; j < diagnostics.length ; j++) { out.print("<td><pre>" + diagnostics[j] + "</pre></td>"); } out.print("</tr>\n"); } out.print("</table>"); out.print("</center>"); } if (end_index < report_len) { out.print("<div style=\"text-align:right\">" + "<a href=\"/jobtasks.jsp?jobid="+ jobid + "&type=" + type + "&pagenum=" + next_page + "\">" + "Next" + "</a></div>"); } if (start_index != 0) { out.print("<div style=\"text-align:right\">" + "<a href=\"/jobtasks.jsp?jobid="+ jobid + "&type=" + type + "&pagenum=" + (pnum -1) + "\">" + "Prev" + "</a></div>"); }%><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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