网格计算

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Java

taskdetails.jsp：源码内容
							<%@ page
  contentType="text/html; charset=UTF-8"
  import="javax.servlet.*"
  import="javax.servlet.http.*"
  import="java.io.*"
  import="java.lang.String"
  import="java.util.*"
  import="org.apache.hadoop.mapred.*"
  import="org.apache.hadoop.util.*"
  import="java.text.SimpleDateFormat"  
  import="org.apache.hadoop.util.*"
%>
<%!static SimpleDateFormat dateFormat = new SimpleDateFormat(
      "d-MMM-yyyy HH:mm:ss");
  private static final String PRIVATE_ACTIONS_KEY = "webinterface.private.actions";%>
<%!private void printConfirm(JspWriter out, String jobid, String tipid,
      String taskid, String action) throws IOException {
    String url = "taskdetails.jsp?jobid=" + jobid + "&tipid=" + tipid
        + "&taskid=" + taskid;
    out.print("<html><head><META http-equiv="refresh" content="15;URL="
        + url + ""></head>" + "<body><h3> Are you sure you want to kill/fail "
        + taskid + " ?<h3><br><table border="0"><tr><td width="100">"
        + "<form action="" + url + "" method="post">"
        + "<input type="hidden" name="action" value="" + action + "" />"
        + "<input type="submit" name="Kill/Fail" value="Kill/Fail" />"
        + "</form>"
        + "</td><td width="100"><form method="post" action="" + url
        + ""><input type="submit" value="Cancel" name="Cancel""
        + "/></form></td></tr></table></body></html>");
  }%>
<%
    JobTracker tracker = (JobTracker) application.getAttribute("job.tracker");
    String jobid = request.getParameter("jobid");
    String tipid = request.getParameter("tipid");
    String taskid = request.getParameter("taskid");
    JobID jobidObj = JobID.forName(jobid);
    TaskID tipidObj = TaskID.forName(tipid);
    TaskAttemptID taskidObj = TaskAttemptID.forName(taskid);
    
    JobInProgress job = (JobInProgress) tracker.getJob(jobidObj);
    
    boolean privateActions = JSPUtil.conf.getBoolean(PRIVATE_ACTIONS_KEY,
        false);
    if (privateActions) {
      String action = request.getParameter("action");
      if (action != null) {
        if (action.equalsIgnoreCase("confirm")) {
          String subAction = request.getParameter("subaction");
          if (subAction == null)
            subAction = "fail-task";
          printConfirm(out, jobid, tipid, taskid, subAction);
          return;
        }
        else if (action.equalsIgnoreCase("kill-task") 
            && request.getMethod().equalsIgnoreCase("POST")) {
          tracker.killTask(taskidObj, false);
          //redirect again so that refreshing the page will not attempt to rekill the task
          response.sendRedirect("/taskdetails.jsp?" + "&subaction=kill-task"
              + "&jobid=" + jobid + "&tipid=" + tipid);
        }
        else if (action.equalsIgnoreCase("fail-task")
            && request.getMethod().equalsIgnoreCase("POST")) {
          tracker.killTask(taskidObj, true);
          response.sendRedirect("/taskdetails.jsp?" + "&subaction=fail-task"
              + "&jobid=" + jobid + "&tipid=" + tipid);
        }
      }
    }
    TaskInProgress tip = null;
    if (job != null && tipidObj != null) {
      tip = job.getTaskInProgress(tipidObj);
    }
    TaskStatus[] ts = null;
    if (tip != null) { 
      ts = tip.getTaskStatuses();
    }
    boolean isCleanupOrSetup = false;
    if ( tip != null) {
      isCleanupOrSetup = tip.isJobCleanupTask();
      if (!isCleanupOrSetup) {
        isCleanupOrSetup = tip.isJobSetupTask();
      }
    }
%>
<html>
<head>
  <link rel="stylesheet" type="text/css" href="/static/hadoop.css">
  <title>Hadoop Task Details</title>
</head>
<body>
<h1>Job <a href="/jobdetails.jsp?jobid=<%=jobid%>"><%=jobid%></a></h1>
<hr>
<h2>All Task Attempts</h2>
<center>
<%
    if (ts == null || ts.length == 0) {
%>
		<h3>No Task Attempts found</h3>
<%
    } else {
%>
<table border=2 cellpadding="5" cellspacing="2">
<tr><td align="center">Task Attempts</td><td>Machine</td><td>Status</td><td>Progress</td><td>Start Time</td> 
  <%
   if (!ts[0].getIsMap() && !isCleanupOrSetup) {
   %>
<td>Shuffle Finished</td><td>Sort Finished</td>
  <%
  }
  %>
<td>Finish Time</td><td>Errors</td><td>Task Logs</td><td>Counters</td><td>Actions</td></tr>
  <%
    for (int i = 0; i < ts.length; i++) {
      TaskStatus status = ts[i];
      String taskTrackerName = status.getTaskTracker();
      TaskTrackerStatus taskTracker = tracker.getTaskTracker(taskTrackerName);
      out.print("<tr><td>" + status.getTaskID() + "</td>");
      String taskAttemptTracker = null;
      String cleanupTrackerName = null;
      TaskTrackerStatus cleanupTracker = null;
      String cleanupAttemptTracker = null;
      boolean hasCleanupAttempt = false;
      if (tip != null && tip.isCleanupAttempt(status.getTaskID())) {
        cleanupTrackerName = tip.machineWhereCleanupRan(status.getTaskID());
        cleanupTracker = tracker.getTaskTracker(cleanupTrackerName);
        if (cleanupTracker != null) {
          cleanupAttemptTracker = "http://" + cleanupTracker.getHost() + ":"
            + cleanupTracker.getHttpPort();
        }
        hasCleanupAttempt = true;
      }
      out.print("<td>");
      if (hasCleanupAttempt) {
        out.print("Task attempt: ");
      }
      if (taskTracker == null) {
        out.print(taskTrackerName);
      } else {
        taskAttemptTracker = "http://" + taskTracker.getHost() + ":"
          + taskTracker.getHttpPort();
        out.print("<a href="" + taskAttemptTracker + "">"
          + tracker.getNode(taskTracker.getHost()) + "</a>");
      }
      if (hasCleanupAttempt) {
        out.print("<br/>Cleanup Attempt: ");
        if (cleanupAttemptTracker == null ) {
          out.print(cleanupTrackerName);
        } else {
          out.print("<a href="" + cleanupAttemptTracker + "">"
            + tracker.getNode(cleanupTracker.getHost()) + "</a>");
        }
      }
      out.print("</td>");
        out.print("<td>" + status.getRunState() + "</td>");
        out.print("<td>" + StringUtils.formatPercent(status.getProgress(), 2)
          + ServletUtil.percentageGraph(status.getProgress() * 100f, 80) + "</td>");
        out.print("<td>"
          + StringUtils.getFormattedTimeWithDiff(dateFormat, status
          .getStartTime(), 0) + "</td>");
        if (!ts[i].getIsMap() && !isCleanupOrSetup) {
          out.print("<td>"
          + StringUtils.getFormattedTimeWithDiff(dateFormat, status
          .getShuffleFinishTime(), status.getStartTime()) + "</td>");
        out.println("<td>"
          + StringUtils.getFormattedTimeWithDiff(dateFormat, status
          .getSortFinishTime(), status.getShuffleFinishTime())
          + "</td>");
        }
        out.println("<td>"
          + StringUtils.getFormattedTimeWithDiff(dateFormat, status
          .getFinishTime(), status.getStartTime()) + "</td>");
        out.print("<td><pre>");
        String [] failures = tracker.getTaskDiagnostics(status.getTaskID());
        if (failures == null) {
          out.print("&nbsp;");
        } else {
          for(int j = 0 ; j < failures.length ; j++){
            out.print(failures[j]);
            if (j < (failures.length - 1)) {
              out.print("n-------n");
            }
          }
        }
        out.print("</pre></td>");
        out.print("<td>");
        String taskLogUrl = null;
        if (taskTracker != null ) {
        	taskLogUrl = TaskLogServlet.getTaskLogUrl(taskTracker.getHost(),
        						String.valueOf(taskTracker.getHttpPort()),
        						status.getTaskID().toString());
      	}
        if (hasCleanupAttempt) {
          out.print("Task attempt: <br/>");
        }
        if (taskLogUrl == null) {
          out.print("n/a");
        } else {
          String tailFourKBUrl = taskLogUrl + "&start=-4097";
          String tailEightKBUrl = taskLogUrl + "&start=-8193";
          String entireLogUrl = taskLogUrl + "&all=true";
          out.print("<a href="" + tailFourKBUrl + "">Last 4KB</a><br/>");
          out.print("<a href="" + tailEightKBUrl + "">Last 8KB</a><br/>");
          out.print("<a href="" + entireLogUrl + "">All</a><br/>");
        }
        if (hasCleanupAttempt) {
          out.print("Cleanup attempt: <br/>");
          taskLogUrl = null;
          if (cleanupTracker != null ) {
        	taskLogUrl = TaskLogServlet.getTaskLogUrl(cleanupTracker.getHost(),
                                String.valueOf(cleanupTracker.getHttpPort()),
                                status.getTaskID().toString());
      	  }
          if (taskLogUrl == null) {
            out.print("n/a");
          } else {
            String tailFourKBUrl = taskLogUrl + "&start=-4097&cleanup=true";
            String tailEightKBUrl = taskLogUrl + "&start=-8193&cleanup=true";
            String entireLogUrl = taskLogUrl + "&all=true&cleanup=true";
            out.print("<a href="" + tailFourKBUrl + "">Last 4KB</a><br/>");
            out.print("<a href="" + tailEightKBUrl + "">Last 8KB</a><br/>");
            out.print("<a href="" + entireLogUrl + "">All</a><br/>");
          }
        }
        out.print("</td><td>" + "<a href="/taskstats.jsp?jobid=" + jobid
          + "&tipid=" + tipid + "&taskid=" + status.getTaskID() + "">"
          + ((status.getCounters() != null) ? status.getCounters().size() : 0) + "</a></td>");
        out.print("<td>");
        if (privateActions
          && status.getRunState() == TaskStatus.State.RUNNING) {
        out.print("<a href="/taskdetails.jsp?action=confirm"
          + "&subaction=kill-task" + "&jobid=" + jobid + "&tipid="
          + tipid + "&taskid=" + status.getTaskID() + "" > Kill </a>");
        out.print("<br><a href="/taskdetails.jsp?action=confirm"
          + "&subaction=fail-task" + "&jobid=" + jobid + "&tipid="
          + tipid + "&taskid=" + status.getTaskID() + "" > Fail </a>");
        }
        else
          out.print("<pre>&nbsp;</pre>");
        out.println("</td></tr>");
      }
  %>
</table>
</center>
<%
      if (ts[0].getIsMap()) {
%>
<h3>Input Split Locations</h3>
<table border=2 cellpadding="5" cellspacing="2">
<%
        for (String split: StringUtils.split(tracker.getTip(
                                         tipidObj).getSplitNodes())) {
          out.println("<tr><td>" + split + "</td></tr>");
        }
%>
</table>
<%    
      }
    }
%>
<hr>
<a href="jobdetails.jsp?jobid=<%=jobid%>">Go back to the job</a><br>
<a href="jobtracker.jsp">Go back to JobTracker</a><br>
<%
out.println(ServletUtil.htmlFooter());
%>

						