/** * We lost the task tracker! All task-tracker structures have already been updated. Just process * the contained tasks and any jobs that might be affected. */ void lostTaskTracker(String trackerName) { LOG.info("Lost tracker '" + trackerName + "'"); TreeSet lostTasks = (TreeSet) trackerToTaskMap.get(trackerName); trackerToTaskMap.remove(trackerName); if (lostTasks != null) { for (Iterator it = lostTasks.iterator(); it.hasNext(); ) { String taskId = (String) it.next(); TaskInProgress tip = (TaskInProgress) taskidToTIPMap.get(taskId); // Tell the job to fail the relevant task JobInProgress job = tip.getJob(); job.failedTask(tip, taskId, trackerName); } } }
/** * Accept and process a new TaskTracker profile. We might have known about the TaskTracker * previously, or it might be brand-new. All task-tracker structures have already been updated. * Just process the contained tasks and any jobs that might be affected. */ void updateTaskStatuses(TaskTrackerStatus status) { for (Iterator it = status.taskReports(); it.hasNext(); ) { TaskStatus report = (TaskStatus) it.next(); TaskInProgress tip = (TaskInProgress) taskidToTIPMap.get(report.getTaskId()); if (tip == null) { LOG.info( "Serious problem. While updating status, cannot find taskid " + report.getTaskId()); } else { JobInProgress job = tip.getJob(); job.updateTaskStatus(tip, report); if (report.getRunState() == TaskStatus.SUCCEEDED) { job.completedTask(tip, report.getTaskId()); } else if (report.getRunState() == TaskStatus.FAILED) { // Tell the job to fail the relevant task job.failedTask(tip, report.getTaskId(), status.getTrackerName()); } } } }