TaskInProgress // All information should be exported to monitor system. // Depends on numBSPTasks.
Configuration conf;// defined in JobInProgress.
static final int MAX_TASK_EXECS = 1;// defined in JobInProgress.
int maxTaskAttempts = 4;// defined in JobInProgress
Boolean failed = false;
int NUM_ATTEMPTS_PER_RESTART = 1000;
String jobFile = null;// defined in JobInProgress.
TaskAttemptID attemptId;// newly added, representing the attempt id for this task.
TaskStatus status; // newly added. indicate the state of this task, e.g. this task is running or not.
JobInProgress job;// TaskInProgress is contained within JobInProgress.
int completes = 0;// change to Boolean. so it also indicates if this task successes.
Boolean completed = false; // true indicates this task is successfully executed.
String groom; // to which groom this task belongs.
long startTime = -1;
private int successEventNumber = -1;
int nextTaskId = 0; // should be calculated at runtime.
TaskAttemptID successfulTaskId;// see completed.
TaskAttemptID firstTaskId;// the first task stored in 2d task array. // see job task relation section
TaskAttemptID currentTaskId;// the last task in 2d task array should be the current execution task. // see job task relation section
TreeMap<TaskAttemptID, String> activeTasks; // mapping from TaskId to GroomServer. // Task to GroomServer relation is recorded by taskId and groom in o.a.h.b.v2.Task.
TreeMap<TaskAttemptID, TaskStatus> taskStatuses// each task should embed with a status object.
-BSPJobID jobId; // defined in JobInProgress. -
int mySuperstep = -1;// not used.