/**
* JobTracker.submitJob() kicks off a new job.
*
* <p>Create a 'JobInProgress' object, which contains both JobProfile and JobStatus. Those two
* sub-objects are sometimes shipped outside of the JobTracker. But JobInProgress adds info that's
* useful for the JobTracker alone.
*
* <p>We add the JIP to the jobInitQueue, which is processed asynchronously to handle
* split-computation and build up the right TaskTracker/Block mapping.
*/
public synchronized JobStatus submitJob(String jobFile) throws IOException {
totalSubmissions++;
JobInProgress job = new JobInProgress(jobFile, this, this.conf);
synchronized (jobs) {
synchronized (jobsByArrival) {
synchronized (jobInitQueue) {
jobs.put(job.getProfile().getJobId(), job);
jobsByArrival.add(job);
jobInitQueue.add(job);
jobInitQueue.notifyAll();
}
}
}
return job.getStatus();
}
public Map<String, Rxn> getReactions(String compartment) {
TreeMap<String, Rxn> crxns = new TreeMap<String, Rxn>();
for (String rn : reactions.keySet()) {
Rxn r = reactions.get(rn);
if (r.getLocation().equals(compartment)) {
crxns.put(rn, r);
}
}
return crxns;
}
///////////////////////////////////////////////////////
// Maintain lookup tables; called by JobInProgress
// and TaskInProgress
///////////////////////////////////////////////////////
void createTaskEntry(String taskid, String taskTracker, TaskInProgress tip) {
LOG.info(
"Adding task '"
+ taskid
+ "' to tip "
+ tip.getTIPId()
+ ", for tracker '"
+ taskTracker
+ "'");
// taskid --> tracker
taskidToTrackerMap.put(taskid, taskTracker);
// tracker --> taskid
TreeSet taskset = (TreeSet) trackerToTaskMap.get(taskTracker);
if (taskset == null) {
taskset = new TreeSet();
trackerToTaskMap.put(taskTracker, taskset);
}
taskset.add(taskid);
// taskid --> TIP
taskidToTIPMap.put(taskid, tip);
}
/**
* Update the last recorded status for the given task tracker. It assumes that the taskTrackers
* are locked on entry.
*
* @author Owen O'Malley
* @param trackerName The name of the tracker
* @param status The new status for the task tracker
* @return Was an old status found?
*/
private boolean updateTaskTrackerStatus(String trackerName, TaskTrackerStatus status) {
TaskTrackerStatus oldStatus = (TaskTrackerStatus) taskTrackers.get(trackerName);
if (oldStatus != null) {
totalMaps -= oldStatus.countMapTasks();
totalReduces -= oldStatus.countReduceTasks();
if (status == null) {
taskTrackers.remove(trackerName);
}
}
if (status != null) {
totalMaps += status.countMapTasks();
totalReduces += status.countReduceTasks();
taskTrackers.put(trackerName, status);
}
return oldStatus != null;
}