public ActivationFilterResponse FilterActivation(Stream jobXml, int schedulerPass, int jobIndex, bool backfill, int resourceCount)
{
LogEventMsg("FilterActivation");
ActivationFilterResponse retVal = ActivationFilterResponse.StartJob;
_filterActivationCalls++;
return(retVal);
}
/// <summary>
/// Analyse the Job and if all the required licenses are available start the job.
/// If there are not enough total licenses to satisfy the request, fail the job.
/// If there are not enough licenses currently available, request the scheduler keep
/// the allocated resources so that when the licenses become available the job can
/// be scheduled.
/// </summary>
/// <param name="job"></param>
/// <param name="schedulerPass"></param>
/// <param name="jobIndex"></param>
/// <param name="backfill"></param>
/// <param name="resourceCount"></param>
/// <returns></returns>
public ActivationFilterResponse FilterActivation(
Stream jobXml,
int schedulerPass,
int jobIndex,
bool backfill,
int resourceCount)
{
ActivationFilterResponse returnDecision = ActivationFilterResponse.StartJob;
_schedulerPass = schedulerPass;
_jobIndex = jobIndex;
_backfill = backfill;
_resourceCount = resourceCount;
if ((schedulerPass == 1) &&
(jobIndex == 1))
{
// Scheduler restarted. Ensure we never use stale data from FlexLM server by clearing cache
Cache.Clear();
}
ParseJobXml(jobXml);
// If this job does not parse correctly or has no license requests, tell the Scheduler
// to proceed and schedule the job as normal.
if (_requestedFeatures.Count <= 0)
{
return(ActivationFilterResponse.StartJob);
}
// If the job is flagged as backfill then there is a possibility that allowing it to
// run might block a higher priority job from running due to the use of shared licenses.
if (backfill)
{
// Some users may wish to disable this feature so that licenses are utilized as much as
// possible.
// Let another job take the backfill slot if there is one.
return(ActivationFilterResponse.DoNotRunKeepResourcesAllowOtherJobsToSchedule);
}
// Find out what licenses are available
Cache.Load(schedulerPass, jobIndex);
if (Cache.licenseInfo.PollServerFailed)
{
// FlexLM server is down. Hold the job and let other non-licensed Jobs
// to be scheduled. Administrator can release the held jobs when the issue
// is resolved using job modify /holduntil or just wait for the HoldUntil
// time to elapse.
return(ActivationFilterResponse.HoldJobReleaseResourcesAllowOtherJobsToSchedule);
}
// Iterate through the requesting features and determine whether
// there are enough license tokens.
IDictionaryEnumerator iterator = _requestedFeatures.GetEnumerator();
// Run lmutils lmstat to verify the available license tokens.
while (iterator.MoveNext())
{
string featureName = iterator.Key as string;
int numberRequested = (int)iterator.Value;
if (Cache.licenseInfo.LicenseDirectory.ContainsKey(featureName))
{
int total = Cache.licenseInfo.LicenseDirectory[featureName].Total;
int inUse = Cache.licenseInfo.LicenseDirectory[featureName].InUse;
if (numberRequested > total)
{
if (_growing)
{
// Ignore additional resources
returnDecision = ActivationFilterResponse.RejectAdditionOfResources;
break;
}
// Not enough licenses purchased to ever satisfy this job.
SetProgressMessage("FlexLM error: Not enough licenses for " + featureName);
returnDecision = ActivationFilterResponse.FailJob;
break;
}
else if (numberRequested > total - inUse)
{
if (_growing)
{
// Ignore additional resources
returnDecision = ActivationFilterResponse.RejectAdditionOfResources;
break;
}
// Not enough resources to run this job on this pass. Reserve the licenses that are
// available and wait for more to become available
Cache.Reserve(featureName, total - inUse);
returnDecision = ActivationFilterResponse.DoNotRunKeepResourcesAllowOtherJobsToSchedule;
}
else
{
Cache.Reserve(featureName, numberRequested);
}
}
else
{
if (_growing)
{
// Ignore additional resources
returnDecision = ActivationFilterResponse.RejectAdditionOfResources;
break;
}
// Requested a license we don't have
SetProgressMessage("FlexLM error: License " + featureName + " not found");
returnDecision = ActivationFilterResponse.FailJob;
break;
}
}
// If we want the resources for this job, persist the updates
if ((returnDecision == ActivationFilterResponse.DoNotRunKeepResourcesAllowOtherJobsToSchedule) ||
(returnDecision == ActivationFilterResponse.StartJob))
{
Cache.Save();
}
return(returnDecision);
}
/// <summary>
/// Entry point for an activation filter.
/// </summary>
/// <param name="jobXml"></param>
/// XML stream containing the job in question.
/// <param name="schedulerPass"></param>
/// <param name="jobIndex"></param>
/// <param name="backfill"></param>
/// <param name="resourceCount"></param>
/// <returns></returns>
public ActivationFilterResponse FilterActivation(Stream jobXml, int schedulerPass, int jobIndex, bool backfill, int resourceCount)
{
if (setupLogFile() != 0)
{
return(ActivationFilterResponse.FailJob);
}
ActivationFilterResponse retval = ActivationFilterResponse.FailJob;
try {
// If the job is submitted outside peak business hours, no change is necessary
if (DuringOffHours())
{
logFile.WriteLine("AF: During Off Peak Hours, job starting");
return(ActivationFilterResponse.StartJob);
}
// Currently during peak business hours
// Check if user is authorized to start a job during these hours
// If not, delay the start of the job until off peak hours are in play
// Load the job file as an XmlDocument.
XmlDocument doc = new XmlDocument();
doc.Load(jobXml);
XmlNamespaceManager nsMgr = new XmlNamespaceManager(doc.NameTable);
nsMgr.AddNamespace("hpc", xmlNameSpace);
// Find the job node in the XML document.
XmlNode jobXML = doc.SelectSingleNode("/hpc:Job", nsMgr);
if (jobXML == null)
{
throw new Exception("No job in the xml file");
}
// Find the User attribute for the job.
XmlAttributeCollection attrCol = jobXML.Attributes;
XmlAttribute userAttr = attrCol["User"];
string user = userAttr.Value;
// If user does not have permission to run jobs during peak hours, adjust HoldUntil if needed
if (!PeakHoursUser(user))
{
string jobIdString = attrCol["Id"].Value;
int jobId;
Int32.TryParse(jobIdString, out jobId);
if (jobId != 0)
{
using (IScheduler scheduler = new Scheduler()) {
scheduler.Connect("localhost");
ISchedulerJob job = scheduler.OpenJob(jobId);
DateTime peakEnd = DateTime.Today.AddHours((double)endhours);
// If the job is not already set to delay until off peak hours, set it
// This property should be null, but could be non-null if some other
// thread has set it after scheduling called the activation filter
if ((job.HoldUntil == null) || (job.HoldUntil < peakEnd))
{
job.SetHoldUntil(peakEnd);
job.Commit();
logFile.WriteLine("Delay job {0} until off peak hours", jobId);
}
else
{
logFile.WriteLine("Job {0} already set to {1}", jobId, job.HoldUntil);
}
scheduler.Close();
} // using scheduler
}
else
{
logFile.WriteLine("jobId == 0, delaying job by default duration");
}
retval = ActivationFilterResponse.HoldJobReleaseResourcesAllowOtherJobsToSchedule;
}
else
{
logFile.WriteLine("Job to run during peak hours");
retval = ActivationFilterResponse.StartJob;
}
} catch (IOException e) {
logFile.WriteLine("Error Loading the XmlFile");
logFile.WriteLine(e.ToString());
retval = ActivationFilterResponse.FailJob;
} catch (Exception e) {
logFile.WriteLine(e.ToString());
retval = ActivationFilterResponse.FailJob;
} finally {
logFile.Close();
}
return(retval);
}
