网格计算

开发平台：

Java

tasktracker.jsp：源码内容

							<%@ page
  contentType="text/html; charset=UTF-8"
  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.*"
%>
<%
  TaskTracker tracker = (TaskTracker) application.getAttribute("task.tracker");
  String trackerName = tracker.getName();
%>
<html>
<title><%= trackerName %> Task Tracker Status</title>
<body>
<h1><%= trackerName %> Task Tracker Status</h1>
<img src="/static/hadoop-logo.jpg"/><br>
<b>Version:</b> <%= VersionInfo.getVersion()%>,
                r<%= VersionInfo.getRevision()%><br>
<b>Compiled:</b> <%= VersionInfo.getDate()%> by 
                 <%= VersionInfo.getUser()%><br>
<h2>Running tasks</h2>
<center>
<table border=2 cellpadding="5" cellspacing="2">
<tr><td align="center">Task Attempts</td><td>Status</td>
    <td>Progress</td><td>Errors</td></tr>
  <%
     Iterator itr = tracker.getRunningTaskStatuses().iterator();
     while (itr.hasNext()) {
       TaskStatus status = (TaskStatus) itr.next();
       out.print("<tr><td>" + status.getTaskID());
       out.print("</td><td>" + status.getRunState()); 
       out.print("</td><td>" + 
                 StringUtils.formatPercent(status.getProgress(), 2));
       out.print("</td><td><pre>" + status.getDiagnosticInfo() + "</pre></td>");
       out.print("</tr>n");
     }
  %>
</table>
</center>
<h2>Non-Running Tasks</h2>
<table border=2 cellpadding="5" cellspacing="2">
<tr><td align="center">Task Attempts</td><td>Status</td>
  <%
    for(TaskStatus status: tracker.getNonRunningTasks()) {
      out.print("<tr><td>" + status.getTaskID() + "</td>");
      out.print("<td>" + status.getRunState() + "</td></tr>n");
    }
  %>
</table>
<h2>Tasks from Running Jobs</h2>
<center>
<table border=2 cellpadding="5" cellspacing="2">
<tr><td align="center">Task Attempts</td><td>Status</td>
    <td>Progress</td><td>Errors</td></tr>
  <%
     itr = tracker.getTasksFromRunningJobs().iterator();
     while (itr.hasNext()) {
       TaskStatus status = (TaskStatus) itr.next();
       out.print("<tr><td>" + status.getTaskID());
       out.print("</td><td>" + status.getRunState()); 
       out.print("</td><td>" + 
                 StringUtils.formatPercent(status.getProgress(), 2));
       out.print("</td><td><pre>" + status.getDiagnosticInfo() + "</pre></td>");
       out.print("</tr>n");
     }
  %>
</table>
</center>
<h2>Local Logs</h2>
<a href="/logs/">Log</a> directory
<%
out.println(ServletUtil.htmlFooter());
%>

						