/// <exception cref="Org.Apache.Hadoop.Yarn.Exceptions.YarnException"/>
/// <exception cref="System.IO.IOException"/>
public virtual AllocateResponse Allocate(AllocateRequest request)
{
AMRMTokenIdentifier amrmTokenIdentifier = AuthorizeRequest();
ApplicationAttemptId appAttemptId = amrmTokenIdentifier.GetApplicationAttemptId();
ApplicationId applicationId = appAttemptId.GetApplicationId();
this.amLivelinessMonitor.ReceivedPing(appAttemptId);
/* check if its in cache */
ApplicationMasterService.AllocateResponseLock Lock = responseMap[appAttemptId];
if (Lock == null)
{
string message = "Application attempt " + appAttemptId + " doesn't exist in ApplicationMasterService cache.";
Log.Error(message);
throw new ApplicationAttemptNotFoundException(message);
}
lock (Lock)
{
AllocateResponse lastResponse = Lock.GetAllocateResponse();
if (!HasApplicationMasterRegistered(appAttemptId))
{
string message = "AM is not registered for known application attempt: " + appAttemptId
+ " or RM had restarted after AM registered . AM should re-register.";
Log.Info(message);
RMAuditLogger.LogFailure(this.rmContext.GetRMApps()[appAttemptId.GetApplicationId
()].GetUser(), RMAuditLogger.AuditConstants.AmAllocate, string.Empty, "ApplicationMasterService"
, message, applicationId, appAttemptId);
throw new ApplicationMasterNotRegisteredException(message);
}
if ((request.GetResponseId() + 1) == lastResponse.GetResponseId())
{
/* old heartbeat */
return(lastResponse);
}
else
{
if (request.GetResponseId() + 1 < lastResponse.GetResponseId())
{
string message = "Invalid responseId in AllocateRequest from application attempt: "
+ appAttemptId + ", expect responseId to be " + (lastResponse.GetResponseId() +
1);
throw new InvalidApplicationMasterRequestException(message);
}
}
//filter illegal progress values
float filteredProgress = request.GetProgress();
if (float.IsNaN(filteredProgress) || filteredProgress == float.NegativeInfinity ||
filteredProgress < 0)
{
request.SetProgress(0);
}
else
{
if (filteredProgress > 1 || filteredProgress == float.PositiveInfinity)
{
request.SetProgress(1);
}
}
// Send the status update to the appAttempt.
this.rmContext.GetDispatcher().GetEventHandler().Handle(new RMAppAttemptStatusupdateEvent
(appAttemptId, request.GetProgress()));
IList <ResourceRequest> ask = request.GetAskList();
IList <ContainerId> release = request.GetReleaseList();
ResourceBlacklistRequest blacklistRequest = request.GetResourceBlacklistRequest();
IList <string> blacklistAdditions = (blacklistRequest != null) ? blacklistRequest.
GetBlacklistAdditions() : Sharpen.Collections.EmptyList;
IList <string> blacklistRemovals = (blacklistRequest != null) ? blacklistRequest.GetBlacklistRemovals
() : Sharpen.Collections.EmptyList;
RMApp app = this.rmContext.GetRMApps()[applicationId];
// set label expression for Resource Requests if resourceName=ANY
ApplicationSubmissionContext asc = app.GetApplicationSubmissionContext();
foreach (ResourceRequest req in ask)
{
if (null == req.GetNodeLabelExpression() && ResourceRequest.Any.Equals(req.GetResourceName
()))
{
req.SetNodeLabelExpression(asc.GetNodeLabelExpression());
}
}
// sanity check
try
{
RMServerUtils.NormalizeAndValidateRequests(ask, rScheduler.GetMaximumResourceCapability
(), app.GetQueue(), rScheduler, rmContext);
}
catch (InvalidResourceRequestException e)
{
Log.Warn("Invalid resource ask by application " + appAttemptId, e);
throw;
}
try
{
RMServerUtils.ValidateBlacklistRequest(blacklistRequest);
}
catch (InvalidResourceBlacklistRequestException e)
{
Log.Warn("Invalid blacklist request by application " + appAttemptId, e);
throw;
}
// In the case of work-preserving AM restart, it's possible for the
// AM to release containers from the earlier attempt.
if (!app.GetApplicationSubmissionContext().GetKeepContainersAcrossApplicationAttempts
())
{
try
{
RMServerUtils.ValidateContainerReleaseRequest(release, appAttemptId);
}
catch (InvalidContainerReleaseException e)
{
Log.Warn("Invalid container release by application " + appAttemptId, e);
throw;
}
}
// Send new requests to appAttempt.
Allocation allocation = this.rScheduler.Allocate(appAttemptId, ask, release, blacklistAdditions
, blacklistRemovals);
if (!blacklistAdditions.IsEmpty() || !blacklistRemovals.IsEmpty())
{
Log.Info("blacklist are updated in Scheduler." + "blacklistAdditions: " + blacklistAdditions
+ ", " + "blacklistRemovals: " + blacklistRemovals);
}
RMAppAttempt appAttempt = app.GetRMAppAttempt(appAttemptId);
AllocateResponse allocateResponse = recordFactory.NewRecordInstance <AllocateResponse
>();
if (!allocation.GetContainers().IsEmpty())
{
allocateResponse.SetNMTokens(allocation.GetNMTokens());
}
// update the response with the deltas of node status changes
IList <RMNode> updatedNodes = new AList <RMNode>();
if (app.PullRMNodeUpdates(updatedNodes) > 0)
{
IList <NodeReport> updatedNodeReports = new AList <NodeReport>();
foreach (RMNode rmNode in updatedNodes)
{
SchedulerNodeReport schedulerNodeReport = rScheduler.GetNodeReport(rmNode.GetNodeID
());
Resource used = BuilderUtils.NewResource(0, 0);
int numContainers = 0;
if (schedulerNodeReport != null)
{
used = schedulerNodeReport.GetUsedResource();
numContainers = schedulerNodeReport.GetNumContainers();
}
NodeId nodeId = rmNode.GetNodeID();
NodeReport report = BuilderUtils.NewNodeReport(nodeId, rmNode.GetState(), rmNode.
GetHttpAddress(), rmNode.GetRackName(), used, rmNode.GetTotalCapability(), numContainers
, rmNode.GetHealthReport(), rmNode.GetLastHealthReportTime(), rmNode.GetNodeLabels
());
updatedNodeReports.AddItem(report);
}
allocateResponse.SetUpdatedNodes(updatedNodeReports);
}
allocateResponse.SetAllocatedContainers(allocation.GetContainers());
allocateResponse.SetCompletedContainersStatuses(appAttempt.PullJustFinishedContainers
());
allocateResponse.SetResponseId(lastResponse.GetResponseId() + 1);
allocateResponse.SetAvailableResources(allocation.GetResourceLimit());
allocateResponse.SetNumClusterNodes(this.rScheduler.GetNumClusterNodes());
// add preemption to the allocateResponse message (if any)
allocateResponse.SetPreemptionMessage(GeneratePreemptionMessage(allocation));
// update AMRMToken if the token is rolled-up
MasterKeyData nextMasterKey = this.rmContext.GetAMRMTokenSecretManager().GetNextMasterKeyData
();
if (nextMasterKey != null && nextMasterKey.GetMasterKey().GetKeyId() != amrmTokenIdentifier
.GetKeyId())
{
RMAppAttemptImpl appAttemptImpl = (RMAppAttemptImpl)appAttempt;
Org.Apache.Hadoop.Security.Token.Token <AMRMTokenIdentifier> amrmToken = appAttempt
.GetAMRMToken();
if (nextMasterKey.GetMasterKey().GetKeyId() != appAttemptImpl.GetAMRMTokenKeyId())
{
Log.Info("The AMRMToken has been rolled-over. Send new AMRMToken back" + " to application: "
+ applicationId);
amrmToken = rmContext.GetAMRMTokenSecretManager().CreateAndGetAMRMToken(appAttemptId
);
appAttemptImpl.SetAMRMToken(amrmToken);
}
allocateResponse.SetAMRMToken(Org.Apache.Hadoop.Yarn.Api.Records.Token.NewInstance
(amrmToken.GetIdentifier(), amrmToken.GetKind().ToString(), amrmToken.GetPassword
(), amrmToken.GetService().ToString()));
}
/*
* As we are updating the response inside the lock object so we don't
* need to worry about unregister call occurring in between (which
* removes the lock object).
*/
Lock.SetAllocateResponse(allocateResponse);
return(allocateResponse);
}
}
/// <exception cref="Org.Apache.Hadoop.Yarn.Exceptions.YarnException"/>
/// <exception cref="System.IO.IOException"/>
public virtual RegisterApplicationMasterResponse RegisterApplicationMaster(RegisterApplicationMasterRequest
request)
{
AMRMTokenIdentifier amrmTokenIdentifier = AuthorizeRequest();
ApplicationAttemptId applicationAttemptId = amrmTokenIdentifier.GetApplicationAttemptId
();
ApplicationId appID = applicationAttemptId.GetApplicationId();
ApplicationMasterService.AllocateResponseLock Lock = responseMap[applicationAttemptId
];
if (Lock == null)
{
RMAuditLogger.LogFailure(this.rmContext.GetRMApps()[appID].GetUser(), RMAuditLogger.AuditConstants
.RegisterAm, "Application doesn't exist in cache " + applicationAttemptId, "ApplicationMasterService"
, "Error in registering application master", appID, applicationAttemptId);
ThrowApplicationDoesNotExistInCacheException(applicationAttemptId);
}
// Allow only one thread in AM to do registerApp at a time.
lock (Lock)
{
AllocateResponse lastResponse = Lock.GetAllocateResponse();
if (HasApplicationMasterRegistered(applicationAttemptId))
{
string message = "Application Master is already registered : " + appID;
Log.Warn(message);
RMAuditLogger.LogFailure(this.rmContext.GetRMApps()[appID].GetUser(), RMAuditLogger.AuditConstants
.RegisterAm, string.Empty, "ApplicationMasterService", message, appID, applicationAttemptId
);
throw new InvalidApplicationMasterRequestException(message);
}
this.amLivelinessMonitor.ReceivedPing(applicationAttemptId);
RMApp app = this.rmContext.GetRMApps()[appID];
// Setting the response id to 0 to identify if the
// application master is register for the respective attemptid
lastResponse.SetResponseId(0);
Lock.SetAllocateResponse(lastResponse);
Log.Info("AM registration " + applicationAttemptId);
this.rmContext.GetDispatcher().GetEventHandler().Handle(new RMAppAttemptRegistrationEvent
(applicationAttemptId, request.GetHost(), request.GetRpcPort(), request.GetTrackingUrl
()));
RMAuditLogger.LogSuccess(app.GetUser(), RMAuditLogger.AuditConstants.RegisterAm,
"ApplicationMasterService", appID, applicationAttemptId);
// Pick up min/max resource from scheduler...
RegisterApplicationMasterResponse response = recordFactory.NewRecordInstance <RegisterApplicationMasterResponse
>();
response.SetMaximumResourceCapability(rScheduler.GetMaximumResourceCapability(app
.GetQueue()));
response.SetApplicationACLs(app.GetRMAppAttempt(applicationAttemptId).GetSubmissionContext
().GetAMContainerSpec().GetApplicationACLs());
response.SetQueue(app.GetQueue());
if (UserGroupInformation.IsSecurityEnabled())
{
Log.Info("Setting client token master key");
response.SetClientToAMTokenMasterKey(ByteBuffer.Wrap(rmContext.GetClientToAMTokenSecretManager
().GetMasterKey(applicationAttemptId).GetEncoded()));
}
// For work-preserving AM restart, retrieve previous attempts' containers
// and corresponding NM tokens.
if (app.GetApplicationSubmissionContext().GetKeepContainersAcrossApplicationAttempts
())
{
IList <Container> transferredContainers = ((AbstractYarnScheduler)rScheduler).GetTransferredContainers
(applicationAttemptId);
if (!transferredContainers.IsEmpty())
{
response.SetContainersFromPreviousAttempts(transferredContainers);
IList <NMToken> nmTokens = new AList <NMToken>();
foreach (Container container in transferredContainers)
{
try
{
NMToken token = rmContext.GetNMTokenSecretManager().CreateAndGetNMToken(app.GetUser
(), applicationAttemptId, container);
if (null != token)
{
nmTokens.AddItem(token);
}
}
catch (ArgumentException e)
{
// if it's a DNS issue, throw UnknowHostException directly and
// that
// will be automatically retried by RMProxy in RPC layer.
if (e.InnerException is UnknownHostException)
{
throw (UnknownHostException)e.InnerException;
}
}
}
response.SetNMTokensFromPreviousAttempts(nmTokens);
Log.Info("Application " + appID + " retrieved " + transferredContainers.Count + " containers from previous"
+ " attempts and " + nmTokens.Count + " NM tokens.");
}
}
response.SetSchedulerResourceTypes(rScheduler.GetSchedulingResourceTypes());
return(response);
}
}