%@ page contentType="text/html; charset=UTF-8" import="javax.servlet.*" import="javax.servlet.http.*" import="java.io.*" import="java.util.*" import="org.apache.hadoop.http.HtmlQuoting" import="org.apache.hadoop.mapred.*" import="org.apache.hadoop.mapred.JSPUtil.JobWithViewAccessCheck" import="org.apache.hadoop.util.*" %> <%! private static final long serialVersionUID = 1L; %> <% JobTracker tracker = (JobTracker) application.getAttribute("job.tracker"); String trackerName = StringUtils.simpleHostname(tracker.getJobTrackerMachine()); %> <%! private void printBlackListedTrackers(JspWriter out, JobInProgress job) throws IOException { Map trackerErrors = job.getTaskTrackerErrors(); out.print(""); out.print("TaskTrackerNo. of Failures\n"); int maxErrorsPerTracker = job.getJobConf().getMaxTaskFailuresPerTracker(); for (Map.Entry e : trackerErrors.entrySet()) { if (e.getValue().intValue() >= maxErrorsPerTracker) { out.print("" + HtmlQuoting.quoteHtmlChars(e.getKey()) + "" + e.getValue() + "\n"); } } out.print("\n"); } %> <% String jobId = request.getParameter("jobid"); if (jobId == null) { out.println("Missing 'jobid' for fetching black-listed tasktrackers!"); return; } JobWithViewAccessCheck myJob = JSPUtil.checkAccessAndGetJob(tracker, JobID.forName(jobId), request, response); if (!myJob.isViewJobAllowed()) { return; // user is not authorized to view this job } JobInProgress job = myJob.getJob(); if (job == null) { out.print("Job " + jobId + " not found.\n"); return; } %> Hadoop <%=jobId%>'s black-listed tasktrackers Hadoop <%=jobId%> - Black-listed task-trackers <% printBlackListedTrackers(out, job); %> Go back to <%=jobId%> <% out.println(ServletUtil.htmlFooter()); %>