/// <summary>Absorbs one TaskAttemptStatus</summary>
/// <param name="reportedStatus">
/// the status report that we got from a task attempt
/// that we want to fold into the speculation data for this job
/// </param>
/// <param name="timestamp">
/// the time this status corresponds to. This matters
/// because statuses contain progress.
/// </param>
protected internal virtual void StatusUpdate(TaskAttemptStatusUpdateEvent.TaskAttemptStatus
reportedStatus, long timestamp)
{
string stateString = reportedStatus.taskState.ToString();
TaskAttemptId attemptID = reportedStatus.id;
TaskId taskID = attemptID.GetTaskId();
Org.Apache.Hadoop.Mapreduce.V2.App.Job.Job job = context.GetJob(taskID.GetJobId()
);
if (job == null)
{
return;
}
Task task = job.GetTask(taskID);
if (task == null)
{
return;
}
estimator.UpdateAttempt(reportedStatus, timestamp);
if (stateString.Equals(TaskAttemptState.Running.ToString()))
{
runningTasks.PutIfAbsent(taskID, true);
}
else
{
runningTasks.Remove(taskID, true);
if (!stateString.Equals(TaskAttemptState.Starting.ToString()))
{
Sharpen.Collections.Remove(runningTaskAttemptStatistics, attemptID);
}
}
}
public override V Get() // serialize access
{
lock (this)
{
// re-check
Supplier <V> supplier = ValuesMap[SubKey];
if (supplier != this)
{
// something changed while we were waiting:
// might be that we were replaced by a CacheValue
// or were removed because of failure ->
// return null to signal WeakCache.get() to retry
// the loop
return(null);
}
// else still us (supplier == this)
// create new value
V value = null;
try
{
value = Objects.RequireNonNull(outerInstance.ValueFactory.Apply(Key, Parameter));
}
finally
{
if (value == null) // remove us on failure
{
ValuesMap.Remove(SubKey, this);
}
}
// the only path to reach here is with non-null value
Debug.Assert(value != null);
// wrap value with CacheValue (WeakReference)
CacheValue <V> cacheValue = new CacheValue <V>(value);
// try replacing us with CacheValue (this should always succeed)
if (ValuesMap.Replace(SubKey, this, cacheValue))
{
// put also in reverseMap
outerInstance.ReverseMap[cacheValue] = true;
}
else
{
throw new AssertionError("Should not reach here");
}
// successfully replaced us with new CacheValue -> return the value
// wrapped by it
return(value);
}
}
internal void expungeFrom <T1, T2>(ConcurrentMap <T1> map, ConcurrentMap <T2> reverseMap) where T1 : java.util.concurrent.ConcurrentMap <T1, T1>
{
// removing just by key is always safe here because after a CacheKey
// is cleared and enqueue-ed it is only equal to itself
// (see equals method)...
//JAVA TO C# CONVERTER TODO TASK: Java wildcard generics are not converted to .NET:
//ORIGINAL LINE: java.util.concurrent.ConcurrentMap<?, ?> valuesMap = map.remove(this);
ConcurrentMap <?, ?> valuesMap = map.Remove(this);
// remove also from reverseMap if needed
if (valuesMap != null)
{
foreach (Object cacheValue in valuesMap.Values)
{
reverseMap.Remove(cacheValue);
}
}
}
