jobblacklistedtrackers.jsp
上传用户:quxuerui
上传日期:2018-01-08
资源大小:41811k
文件大小:2k
- <%@ 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 printBlackListedTrackers(JspWriter out,
- JobInProgress job) throws IOException {
- Map<String, Integer> trackerErrors = job.getTaskTrackerErrors();
- out.print("<table border=2 cellpadding="5" cellspacing="2">");
- out.print("<tr><th>TaskTracker</th><th>No. of Failures</th></tr>n");
- int maxErrorsPerTracker = job.getJobConf().getMaxTaskFailuresPerTracker();
- for (Map.Entry<String,Integer> e : trackerErrors.entrySet()) {
- if (e.getValue().intValue() >= maxErrorsPerTracker) {
- out.print("<tr><td>" + e.getKey() + "</td><td>" + e.getValue() +
- "</td></tr>n");
- }
- }
- out.print("</table>n");
- }
- %>
- <%
- String jobId = request.getParameter("jobid");
- if (jobId == null) {
- out.println("<h2>Missing 'jobid' for fetching black-listed tasktrackers!</h2>");
- return;
- }
-
- JobInProgress job = (JobInProgress) tracker.getJob(JobID.forName(jobId));
- if (job == null) {
- out.print("<b>Job " + jobId + " not found.</b><br>n");
- return;
- }
- %>
- <html>
- <title>Hadoop <%=jobId%>'s black-listed tasktrackers</title>
- <body>
- <h1>Hadoop <a href="jobdetails.jsp?jobid=<%=jobId%>"><%=jobId%></a> -
- Black-listed task-trackers</h1>
- <%
- printBlackListedTrackers(out, job);
- %>
- <hr>
- <a href="jobdetails.jsp?jobid=<%=jobId%>">Go back to <%=jobId%></a><br>
- <%
- out.println(ServletUtil.htmlFooter());
- %>