package org.apache.hadoop.mapred;
import javax.servlet.*;
import javax.servlet.http.*;
import javax.servlet.jsp.*;
import javax.servlet.*;
import javax.servlet.http.*;
import java.io.*;
import java.util.*;
import java.text.DecimalFormat;
import org.apache.hadoop.mapred.*;
import org.apache.hadoop.util.*;
public final class machines_jsp extends org.apache.jasper.runtime.HttpJspBase
implements org.apache.jasper.runtime.JspSourceDependent {
public void generateTaskTrackerTable(JspWriter out,
JobTracker tracker) throws IOException {
Collection c = tracker.taskTrackers();
if (c.size() == 0) {
out.print("There are currently no known Task Trackers.");
} else {
out.print("<center>\n");
out.print("<table border=\"2\" cellpadding=\"5\" cellspacing=\"2\">\n");
out.print("<tr><td align=\"center\" colspan=\"6\"><b>Task Trackers</b></td></tr>\n");
out.print("<tr><td><b>Name</b></td><td><b>Host</b></td>" +
"<td><b># running tasks</b></td>" +
"<td><b>Max Map Tasks</b></td>" +
"<td><b>Max Reduce Tasks</b></td>" +
"<td><b>Failures</b></td>" +
"<td><b>Seconds since heartbeat</b></td></tr>\n");
int maxFailures = 0;
String failureKing = null;
for (Iterator it = c.iterator(); it.hasNext(); ) {
TaskTrackerStatus tt = (TaskTrackerStatus) it.next();
long sinceHeartbeat = System.currentTimeMillis() - tt.getLastSeen();
if (sinceHeartbeat > 0) {
sinceHeartbeat = sinceHeartbeat / 1000;
}
int numCurTasks = 0;
for (Iterator it2 = tt.getTaskReports().iterator(); it2.hasNext(); ) {
it2.next();
numCurTasks++;
}
int numFailures = tt.getFailures();
if (numFailures > maxFailures) {
maxFailures = numFailures;
failureKing = tt.getTrackerName();
}
out.print("<tr><td><a href=\"http://");
out.print(tt.getHost() + ":" + tt.getHttpPort() + "/\">");
out.print(tt.getTrackerName() + "</a></td><td>");
out.print(tt.getHost() + "</td><td>" + numCurTasks +
"</td><td>" + tt.getMaxMapTasks() +
"</td><td>" + tt.getMaxReduceTasks() +
"</td><td>" + numFailures +
"</td><td>" + sinceHeartbeat + "</td></tr>\n");
}
out.print("</table>\n");
out.print("</center>\n");
if (maxFailures > 0) {
out.print("Highest Failures: " + failureKing + " with " + maxFailures +
" failures<br>\n");
}
}
}
private static java.util.Vector _jspx_dependants;
public java.util.List getDependants() {
return _jspx_dependants;
}
public void _jspService(HttpServletRequest request, HttpServletResponse response)
throws java.io.IOException, ServletException {
JspFactory _jspxFactory = null;
PageContext pageContext = null;
HttpSession session = null;
ServletContext application = null;
ServletConfig config = null;
JspWriter out = null;
Object page = this;
JspWriter _jspx_out = null;
PageContext _jspx_page_context = null;
try {
_jspxFactory = JspFactory.getDefaultFactory();
response.setContentType("text/html; charset=UTF-8");
pageContext = _jspxFactory.getPageContext(this, request, response,
null, true, 8192, true);
_jspx_page_context = pageContext;
application = pageContext.getServletContext();
config = pageContext.getServletConfig();
session = pageContext.getSession();
out = pageContext.getOut();
_jspx_out = out;
out.write('\n');
JobTracker tracker = (JobTracker) application.getAttribute("job.tracker");
String trackerName =
StringUtils.simpleHostname(tracker.getJobTrackerMachine());
out.write('\n');
out.write("\n\n<html>\n\n<title>");
out.print(trackerName);
out.write(" Hadoop Machine List</title>\n\n<body>\n<h1><a href=\"jobtracker.jsp\">");
out.print(trackerName);
out.write("</a> Hadoop Machine List</h1>\n\n<h2>Task Trackers</h2>\n");
generateTaskTrackerTable(out, tracker);
out.write('\n');
out.write('\n');
out.println(ServletUtil.htmlFooter());
out.write('\n');
} catch (Throwable t) {
if (!(t instanceof SkipPageException)){
out = _jspx_out;
if (out != null && out.getBufferSize() != 0)
out.clearBuffer();
if (_jspx_page_context != null) _jspx_page_context.handlePageException(t);
}
} finally {
if (_jspxFactory != null) _jspxFactory.releasePageContext(_jspx_page_context);
}
}
}