public virtual void TestHeadroom()
{
FairScheduler mockScheduler = Org.Mockito.Mockito.Mock <FairScheduler>();
Org.Mockito.Mockito.When(mockScheduler.GetClock()).ThenReturn(scheduler.GetClock(
));
FSLeafQueue mockQueue = Org.Mockito.Mockito.Mock <FSLeafQueue>();
Resource queueMaxResources = Resource.NewInstance(5 * 1024, 3);
Org.Apache.Hadoop.Yarn.Api.Records.Resource queueFairShare = Resources.CreateResource
(4096, 2);
Org.Apache.Hadoop.Yarn.Api.Records.Resource queueUsage = Org.Apache.Hadoop.Yarn.Api.Records.Resource
.NewInstance(2048, 2);
Org.Apache.Hadoop.Yarn.Api.Records.Resource queueStarvation = Resources.Subtract(
queueFairShare, queueUsage);
Org.Apache.Hadoop.Yarn.Api.Records.Resource queueMaxResourcesAvailable = Resources
.Subtract(queueMaxResources, queueUsage);
Org.Apache.Hadoop.Yarn.Api.Records.Resource clusterResource = Resources.CreateResource
(8192, 8);
Org.Apache.Hadoop.Yarn.Api.Records.Resource clusterUsage = Resources.CreateResource
(2048, 2);
Org.Apache.Hadoop.Yarn.Api.Records.Resource clusterAvailable = Resources.Subtract
(clusterResource, clusterUsage);
QueueMetrics fakeRootQueueMetrics = Org.Mockito.Mockito.Mock <QueueMetrics>();
Org.Mockito.Mockito.When(mockQueue.GetMaxShare()).ThenReturn(queueMaxResources);
Org.Mockito.Mockito.When(mockQueue.GetFairShare()).ThenReturn(queueFairShare);
Org.Mockito.Mockito.When(mockQueue.GetResourceUsage()).ThenReturn(queueUsage);
Org.Mockito.Mockito.When(mockScheduler.GetClusterResource()).ThenReturn(clusterResource
);
Org.Mockito.Mockito.When(fakeRootQueueMetrics.GetAllocatedResources()).ThenReturn
(clusterUsage);
Org.Mockito.Mockito.When(mockScheduler.GetRootQueueMetrics()).ThenReturn(fakeRootQueueMetrics
);
ApplicationAttemptId applicationAttemptId = CreateAppAttemptId(1, 1);
RMContext rmContext = resourceManager.GetRMContext();
FSAppAttempt schedulerApp = new FSAppAttempt(mockScheduler, applicationAttemptId,
"user1", mockQueue, null, rmContext);
// Min of Memory and CPU across cluster and queue is used in
// DominantResourceFairnessPolicy
Org.Mockito.Mockito.When(mockQueue.GetPolicy()).ThenReturn(SchedulingPolicy.GetInstance
(typeof(DominantResourceFairnessPolicy)));
VerifyHeadroom(schedulerApp, Min(queueStarvation.GetMemory(), clusterAvailable.GetMemory
(), queueMaxResourcesAvailable.GetMemory()), Min(queueStarvation.GetVirtualCores
(), clusterAvailable.GetVirtualCores(), queueMaxResourcesAvailable.GetVirtualCores
()));
// Fair and Fifo ignore CPU of queue, so use cluster available CPU
Org.Mockito.Mockito.When(mockQueue.GetPolicy()).ThenReturn(SchedulingPolicy.GetInstance
(typeof(FairSharePolicy)));
VerifyHeadroom(schedulerApp, Min(queueStarvation.GetMemory(), clusterAvailable.GetMemory
(), queueMaxResourcesAvailable.GetMemory()), Math.Min(clusterAvailable.GetVirtualCores
(), queueMaxResourcesAvailable.GetVirtualCores()));
Org.Mockito.Mockito.When(mockQueue.GetPolicy()).ThenReturn(SchedulingPolicy.GetInstance
(typeof(FifoPolicy)));
VerifyHeadroom(schedulerApp, Min(queueStarvation.GetMemory(), clusterAvailable.GetMemory
(), queueMaxResourcesAvailable.GetMemory()), Math.Min(clusterAvailable.GetVirtualCores
(), queueMaxResourcesAvailable.GetVirtualCores()));
}
public FSAppAttempt(FairScheduler scheduler, ApplicationAttemptId applicationAttemptId
, string user, FSLeafQueue queue, ActiveUsersManager activeUsersManager, RMContext
rmContext)
: base(applicationAttemptId, user, queue, activeUsersManager, rmContext)
{
this.scheduler = scheduler;
this.startTime = scheduler.GetClock().GetTime();
this.priority = Priority.NewInstance(1);
this.resourceWeights = new ResourceWeights();
}
/// <summary>
/// Checks to see whether any other applications runnable now that the given
/// application has been removed from the given queue.
/// </summary>
/// <remarks>
/// Checks to see whether any other applications runnable now that the given
/// application has been removed from the given queue. And makes them so.
/// Runs in O(n log(n)) where n is the number of queues that are under the
/// highest queue that went from having no slack to having slack.
/// </remarks>
public virtual void UpdateRunnabilityOnAppRemoval(FSAppAttempt app, FSLeafQueue queue
)
{
AllocationConfiguration allocConf = scheduler.GetAllocationConfiguration();
// childqueueX might have no pending apps itself, but if a queue higher up
// in the hierarchy parentqueueY has a maxRunningApps set, an app completion
// in childqueueX could allow an app in some other distant child of
// parentqueueY to become runnable.
// An app removal will only possibly allow another app to become runnable if
// the queue was already at its max before the removal.
// Thus we find the ancestor queue highest in the tree for which the app
// that was at its maxRunningApps before the removal.
FSQueue highestQueueWithAppsNowRunnable = (queue.GetNumRunnableApps() == allocConf
.GetQueueMaxApps(queue.GetName()) - 1) ? queue : null;
FSParentQueue parent = queue.GetParent();
while (parent != null)
{
if (parent.GetNumRunnableApps() == allocConf.GetQueueMaxApps(parent.GetName()) -
1)
{
highestQueueWithAppsNowRunnable = parent;
}
parent = parent.GetParent();
}
IList <IList <FSAppAttempt> > appsNowMaybeRunnable = new AList <IList <FSAppAttempt> >(
);
// Compile lists of apps which may now be runnable
// We gather lists instead of building a set of all non-runnable apps so
// that this whole operation can be O(number of queues) instead of
// O(number of apps)
if (highestQueueWithAppsNowRunnable != null)
{
GatherPossiblyRunnableAppLists(highestQueueWithAppsNowRunnable, appsNowMaybeRunnable
);
}
string user = app.GetUser();
int userNumRunning = usersNumRunnableApps[user];
if (userNumRunning == null)
{
userNumRunning = 0;
}
if (userNumRunning == allocConf.GetUserMaxApps(user) - 1)
{
IList <FSAppAttempt> userWaitingApps = usersNonRunnableApps.Get(user);
if (userWaitingApps != null)
{
appsNowMaybeRunnable.AddItem(userWaitingApps);
}
}
UpdateAppsRunnability(appsNowMaybeRunnable, appsNowMaybeRunnable.Count);
}
public virtual void TestConcurrentAccess()
{
conf.Set(FairSchedulerConfiguration.AssignMultiple, "false");
resourceManager = new MockRM(conf);
resourceManager.Start();
scheduler = (FairScheduler)resourceManager.GetResourceScheduler();
string queueName = "root.queue1";
FSLeafQueue schedulable = scheduler.GetQueueManager().GetLeafQueue(queueName, true
);
ApplicationAttemptId applicationAttemptId = CreateAppAttemptId(1, 1);
RMContext rmContext = resourceManager.GetRMContext();
FSAppAttempt app = new FSAppAttempt(scheduler, applicationAttemptId, "user1", schedulable
, null, rmContext);
// this needs to be in sync with the number of runnables declared below
int testThreads = 2;
IList <Runnable> runnables = new AList <Runnable>();
// add applications to modify the list
runnables.AddItem(new _Runnable_257(schedulable, app));
// iterate over the list a couple of times in a different thread
runnables.AddItem(new _Runnable_267(schedulable));
IList <Exception> exceptions = Sharpen.Collections.SynchronizedList(new AList <Exception
>());
ExecutorService threadPool = Executors.NewFixedThreadPool(testThreads);
try
{
CountDownLatch allExecutorThreadsReady = new CountDownLatch(testThreads);
CountDownLatch startBlocker = new CountDownLatch(1);
CountDownLatch allDone = new CountDownLatch(testThreads);
foreach (Runnable submittedTestRunnable in runnables)
{
threadPool.Submit(new _Runnable_287(allExecutorThreadsReady, startBlocker, submittedTestRunnable
, exceptions, allDone));
}
// wait until all threads are ready
allExecutorThreadsReady.Await();
// start all test runners
startBlocker.CountDown();
int testTimeout = 2;
NUnit.Framework.Assert.IsTrue("Timeout waiting for more than " + testTimeout + " seconds"
, allDone.Await(testTimeout, TimeUnit.Seconds));
}
catch (Exception ie)
{
exceptions.AddItem(ie);
}
finally
{
threadPool.ShutdownNow();
}
NUnit.Framework.Assert.IsTrue("Test failed with exception(s)" + exceptions, exceptions
.IsEmpty());
}
public virtual void TestDelayScheduling()
{
FSLeafQueue queue = Org.Mockito.Mockito.Mock <FSLeafQueue>();
Priority prio = Org.Mockito.Mockito.Mock <Priority>();
Org.Mockito.Mockito.When(prio.GetPriority()).ThenReturn(1);
double nodeLocalityThreshold = .5;
double rackLocalityThreshold = .6;
ApplicationAttemptId applicationAttemptId = CreateAppAttemptId(1, 1);
RMContext rmContext = resourceManager.GetRMContext();
FSAppAttempt schedulerApp = new FSAppAttempt(scheduler, applicationAttemptId, "user1"
, queue, null, rmContext);
// Default level should be node-local
NUnit.Framework.Assert.AreEqual(NodeType.NodeLocal, schedulerApp.GetAllowedLocalityLevel
(prio, 10, nodeLocalityThreshold, rackLocalityThreshold));
// First five scheduling opportunities should remain node local
for (int i = 0; i < 5; i++)
{
schedulerApp.AddSchedulingOpportunity(prio);
NUnit.Framework.Assert.AreEqual(NodeType.NodeLocal, schedulerApp.GetAllowedLocalityLevel
(prio, 10, nodeLocalityThreshold, rackLocalityThreshold));
}
// After five it should switch to rack local
schedulerApp.AddSchedulingOpportunity(prio);
NUnit.Framework.Assert.AreEqual(NodeType.RackLocal, schedulerApp.GetAllowedLocalityLevel
(prio, 10, nodeLocalityThreshold, rackLocalityThreshold));
// Manually set back to node local
schedulerApp.ResetAllowedLocalityLevel(prio, NodeType.NodeLocal);
schedulerApp.ResetSchedulingOpportunities(prio);
NUnit.Framework.Assert.AreEqual(NodeType.NodeLocal, schedulerApp.GetAllowedLocalityLevel
(prio, 10, nodeLocalityThreshold, rackLocalityThreshold));
// Now escalate again to rack-local, then to off-switch
for (int i_1 = 0; i_1 < 5; i_1++)
{
schedulerApp.AddSchedulingOpportunity(prio);
NUnit.Framework.Assert.AreEqual(NodeType.NodeLocal, schedulerApp.GetAllowedLocalityLevel
(prio, 10, nodeLocalityThreshold, rackLocalityThreshold));
}
schedulerApp.AddSchedulingOpportunity(prio);
NUnit.Framework.Assert.AreEqual(NodeType.RackLocal, schedulerApp.GetAllowedLocalityLevel
(prio, 10, nodeLocalityThreshold, rackLocalityThreshold));
for (int i_2 = 0; i_2 < 6; i_2++)
{
schedulerApp.AddSchedulingOpportunity(prio);
NUnit.Framework.Assert.AreEqual(NodeType.RackLocal, schedulerApp.GetAllowedLocalityLevel
(prio, 10, nodeLocalityThreshold, rackLocalityThreshold));
}
schedulerApp.AddSchedulingOpportunity(prio);
NUnit.Framework.Assert.AreEqual(NodeType.OffSwitch, schedulerApp.GetAllowedLocalityLevel
(prio, 10, nodeLocalityThreshold, rackLocalityThreshold));
}
public virtual void TestLocalityLevelWithoutDelays()
{
FSLeafQueue queue = Org.Mockito.Mockito.Mock <FSLeafQueue>();
Priority prio = Org.Mockito.Mockito.Mock <Priority>();
Org.Mockito.Mockito.When(prio.GetPriority()).ThenReturn(1);
RMContext rmContext = resourceManager.GetRMContext();
ApplicationAttemptId applicationAttemptId = CreateAppAttemptId(1, 1);
FSAppAttempt schedulerApp = new FSAppAttempt(scheduler, applicationAttemptId, "user1"
, queue, null, rmContext);
NUnit.Framework.Assert.AreEqual(NodeType.OffSwitch, schedulerApp.GetAllowedLocalityLevel
(prio, 10, -1.0, -1.0));
}
/// <exception cref="System.Exception"/>
public virtual void Test()
{
conf.Set(FairSchedulerConfiguration.AllocationFile, AllocFile);
PrintWriter @out = new PrintWriter(new FileWriter(AllocFile));
@out.WriteLine("<?xml version=\"1.0\"?>");
@out.WriteLine("<allocations>");
@out.WriteLine("<queue name=\"queueA\">");
@out.WriteLine("<minResources>2048mb,0vcores</minResources>");
@out.WriteLine("</queue>");
@out.WriteLine("<queue name=\"queueB\">");
@out.WriteLine("<minResources>2048mb,0vcores</minResources>");
@out.WriteLine("</queue>");
@out.WriteLine("</allocations>");
@out.Close();
resourceManager = new MockRM(conf);
resourceManager.Start();
scheduler = (FairScheduler)resourceManager.GetResourceScheduler();
// Add one big node (only care about aggregate capacity)
RMNode node1 = MockNodes.NewNodeInfo(1, Resources.CreateResource(4 * 1024, 4), 1,
"127.0.0.1");
NodeAddedSchedulerEvent nodeEvent1 = new NodeAddedSchedulerEvent(node1);
scheduler.Handle(nodeEvent1);
scheduler.Update();
// Queue A wants 3 * 1024. Node update gives this all to A
CreateSchedulingRequest(3 * 1024, "queueA", "user1");
scheduler.Update();
NodeUpdateSchedulerEvent nodeEvent2 = new NodeUpdateSchedulerEvent(node1);
scheduler.Handle(nodeEvent2);
// Queue B arrives and wants 1 * 1024
CreateSchedulingRequest(1 * 1024, "queueB", "user1");
scheduler.Update();
ICollection <FSLeafQueue> queues = scheduler.GetQueueManager().GetLeafQueues();
NUnit.Framework.Assert.AreEqual(3, queues.Count);
// Queue A should be above min share, B below.
FSLeafQueue queueA = scheduler.GetQueueManager().GetLeafQueue("queueA", false);
FSLeafQueue queueB = scheduler.GetQueueManager().GetLeafQueue("queueB", false);
NUnit.Framework.Assert.IsFalse(queueA.IsStarvedForMinShare());
NUnit.Framework.Assert.IsTrue(queueB.IsStarvedForMinShare());
// Node checks in again, should allocate for B
scheduler.Handle(nodeEvent2);
// Now B should have min share ( = demand here)
NUnit.Framework.Assert.IsFalse(queueB.IsStarvedForMinShare());
}
/// <summary>
/// Tracks the given new runnable app for purposes of maintaining max running
/// app limits.
/// </summary>
public virtual void TrackRunnableApp(FSAppAttempt app)
{
string user = app.GetUser();
FSLeafQueue queue = ((FSLeafQueue)app.GetQueue());
// Increment running counts for all parent queues
FSParentQueue parent = queue.GetParent();
while (parent != null)
{
parent.IncrementRunnableApps();
parent = parent.GetParent();
}
int userNumRunnable = usersNumRunnableApps[user];
usersNumRunnableApps[user] = (userNumRunnable == null ? 0 : userNumRunnable) + 1;
}
/// <summary>
/// Returns true if there are no applications, running or not, in the given
/// queue or any of its descendents.
/// </summary>
protected internal virtual bool IsEmpty(FSQueue queue)
{
if (queue is FSLeafQueue)
{
FSLeafQueue leafQueue = (FSLeafQueue)queue;
return(queue.GetNumRunnableApps() == 0 && leafQueue.GetNumNonRunnableApps() == 0);
}
else
{
foreach (FSQueue child in queue.GetChildQueues())
{
if (!IsEmpty(child))
{
return(false);
}
}
return(true);
}
}
private FSAppAttempt AddApp(FSLeafQueue queue, string user)
{
ApplicationId appId = ApplicationId.NewInstance(0l, appNum++);
ApplicationAttemptId attId = ApplicationAttemptId.NewInstance(appId, 0);
bool runnable = maxAppsEnforcer.CanAppBeRunnable(queue, user);
FSAppAttempt app = new FSAppAttempt(scheduler, attId, user, queue, null, rmContext
);
queue.AddApp(app, runnable);
if (runnable)
{
maxAppsEnforcer.TrackRunnableApp(app);
}
else
{
maxAppsEnforcer.TrackNonRunnableApp(app);
}
return(app);
}
public virtual void TestRemoveEnablesAppOnCousinQueue()
{
FSLeafQueue leaf1 = queueManager.GetLeafQueue("root.queue1.subqueue1.leaf1", true
);
FSLeafQueue leaf2 = queueManager.GetLeafQueue("root.queue1.subqueue2.leaf2", true
);
queueMaxApps["root.queue1"] = 2;
FSAppAttempt app1 = AddApp(leaf1, "user");
AddApp(leaf2, "user");
AddApp(leaf2, "user");
NUnit.Framework.Assert.AreEqual(1, leaf1.GetNumRunnableApps());
NUnit.Framework.Assert.AreEqual(1, leaf2.GetNumRunnableApps());
NUnit.Framework.Assert.AreEqual(1, leaf2.GetNumNonRunnableApps());
RemoveApp(app1);
NUnit.Framework.Assert.AreEqual(0, leaf1.GetNumRunnableApps());
NUnit.Framework.Assert.AreEqual(2, leaf2.GetNumRunnableApps());
NUnit.Framework.Assert.AreEqual(0, leaf2.GetNumNonRunnableApps());
}
public virtual void TestRemoveDoesNotEnableAnyApp()
{
FSLeafQueue leaf1 = queueManager.GetLeafQueue("root.queue1", true);
FSLeafQueue leaf2 = queueManager.GetLeafQueue("root.queue2", true);
queueMaxApps["root"] = 2;
queueMaxApps["root.queue1"] = 1;
queueMaxApps["root.queue2"] = 1;
FSAppAttempt app1 = AddApp(leaf1, "user");
AddApp(leaf2, "user");
AddApp(leaf2, "user");
NUnit.Framework.Assert.AreEqual(1, leaf1.GetNumRunnableApps());
NUnit.Framework.Assert.AreEqual(1, leaf2.GetNumRunnableApps());
NUnit.Framework.Assert.AreEqual(1, leaf2.GetNumNonRunnableApps());
RemoveApp(app1);
NUnit.Framework.Assert.AreEqual(0, leaf1.GetNumRunnableApps());
NUnit.Framework.Assert.AreEqual(1, leaf2.GetNumRunnableApps());
NUnit.Framework.Assert.AreEqual(1, leaf2.GetNumNonRunnableApps());
}
public virtual void TestDelaySchedulingForContinuousScheduling()
{
FSLeafQueue queue = scheduler.GetQueueManager().GetLeafQueue("queue", true);
Priority prio = Org.Mockito.Mockito.Mock <Priority>();
Org.Mockito.Mockito.When(prio.GetPriority()).ThenReturn(1);
TestFSAppAttempt.MockClock clock = new TestFSAppAttempt.MockClock(this);
scheduler.SetClock(clock);
long nodeLocalityDelayMs = 5 * 1000L;
// 5 seconds
long rackLocalityDelayMs = 6 * 1000L;
// 6 seconds
RMContext rmContext = resourceManager.GetRMContext();
ApplicationAttemptId applicationAttemptId = CreateAppAttemptId(1, 1);
FSAppAttempt schedulerApp = new FSAppAttempt(scheduler, applicationAttemptId, "user1"
, queue, null, rmContext);
// Default level should be node-local
NUnit.Framework.Assert.AreEqual(NodeType.NodeLocal, schedulerApp.GetAllowedLocalityLevelByTime
(prio, nodeLocalityDelayMs, rackLocalityDelayMs, clock.GetTime()));
// after 4 seconds should remain node local
clock.Tick(4);
NUnit.Framework.Assert.AreEqual(NodeType.NodeLocal, schedulerApp.GetAllowedLocalityLevelByTime
(prio, nodeLocalityDelayMs, rackLocalityDelayMs, clock.GetTime()));
// after 6 seconds should switch to rack local
clock.Tick(2);
NUnit.Framework.Assert.AreEqual(NodeType.RackLocal, schedulerApp.GetAllowedLocalityLevelByTime
(prio, nodeLocalityDelayMs, rackLocalityDelayMs, clock.GetTime()));
// manually set back to node local
schedulerApp.ResetAllowedLocalityLevel(prio, NodeType.NodeLocal);
schedulerApp.ResetSchedulingOpportunities(prio, clock.GetTime());
NUnit.Framework.Assert.AreEqual(NodeType.NodeLocal, schedulerApp.GetAllowedLocalityLevelByTime
(prio, nodeLocalityDelayMs, rackLocalityDelayMs, clock.GetTime()));
// Now escalate again to rack-local, then to off-switch
clock.Tick(6);
NUnit.Framework.Assert.AreEqual(NodeType.RackLocal, schedulerApp.GetAllowedLocalityLevelByTime
(prio, nodeLocalityDelayMs, rackLocalityDelayMs, clock.GetTime()));
clock.Tick(7);
NUnit.Framework.Assert.AreEqual(NodeType.OffSwitch, schedulerApp.GetAllowedLocalityLevelByTime
(prio, nodeLocalityDelayMs, rackLocalityDelayMs, clock.GetTime()));
}
public virtual void TestRemoveEnablesOneByQueueOneByUser()
{
FSLeafQueue leaf1 = queueManager.GetLeafQueue("root.queue1.leaf1", true);
FSLeafQueue leaf2 = queueManager.GetLeafQueue("root.queue1.leaf2", true);
queueMaxApps["root.queue1.leaf1"] = 2;
userMaxApps["user1"] = 1;
FSAppAttempt app1 = AddApp(leaf1, "user1");
AddApp(leaf1, "user2");
AddApp(leaf1, "user3");
AddApp(leaf2, "user1");
NUnit.Framework.Assert.AreEqual(2, leaf1.GetNumRunnableApps());
NUnit.Framework.Assert.AreEqual(1, leaf1.GetNumNonRunnableApps());
NUnit.Framework.Assert.AreEqual(1, leaf2.GetNumNonRunnableApps());
RemoveApp(app1);
NUnit.Framework.Assert.AreEqual(2, leaf1.GetNumRunnableApps());
NUnit.Framework.Assert.AreEqual(1, leaf2.GetNumRunnableApps());
NUnit.Framework.Assert.AreEqual(0, leaf1.GetNumNonRunnableApps());
NUnit.Framework.Assert.AreEqual(0, leaf2.GetNumNonRunnableApps());
}
public virtual void TestUpdateDemand()
{
conf.Set(FairSchedulerConfiguration.AssignMultiple, "false");
resourceManager = new MockRM(conf);
resourceManager.Start();
scheduler = (FairScheduler)resourceManager.GetResourceScheduler();
scheduler.allocConf = Org.Mockito.Mockito.Mock <AllocationConfiguration>();
string queueName = "root.queue1";
Org.Mockito.Mockito.When(scheduler.allocConf.GetMaxResources(queueName)).ThenReturn
(maxResource);
Org.Mockito.Mockito.When(scheduler.allocConf.GetMinResources(queueName)).ThenReturn
(Resources.None());
FSLeafQueue schedulable = new FSLeafQueue(queueName, scheduler, null);
FSAppAttempt app = Org.Mockito.Mockito.Mock <FSAppAttempt>();
Org.Mockito.Mockito.When(app.GetDemand()).ThenReturn(maxResource);
schedulable.AddAppSchedulable(app);
schedulable.AddAppSchedulable(app);
schedulable.UpdateDemand();
NUnit.Framework.Assert.IsTrue("Demand is greater than max allowed ", Resources.Equals
(schedulable.GetDemand(), maxResource));
}
/// <summary>
/// Updates the relevant tracking variables after a runnable app with the given
/// queue and user has been removed.
/// </summary>
public virtual void UntrackRunnableApp(FSAppAttempt app)
{
// Update usersRunnableApps
string user = app.GetUser();
int newUserNumRunning = usersNumRunnableApps[user] - 1;
if (newUserNumRunning == 0)
{
Sharpen.Collections.Remove(usersNumRunnableApps, user);
}
else
{
usersNumRunnableApps[user] = newUserNumRunning;
}
// Update runnable app bookkeeping for queues
FSLeafQueue queue = ((FSLeafQueue)app.GetQueue());
FSParentQueue parent = queue.GetParent();
while (parent != null)
{
parent.DecrementRunnableApps();
parent = parent.GetParent();
}
}
public _Runnable_257(FSLeafQueue schedulable, FSAppAttempt app)
{
this.schedulable = schedulable;
this.app = app;
}
public _Runnable_267(FSLeafQueue schedulable)
{
this.schedulable = schedulable;
}
/// <summary>
/// Creates a leaf or parent queue based on what is specified in 'queueType'
/// and places it in the tree.
/// </summary>
/// <remarks>
/// Creates a leaf or parent queue based on what is specified in 'queueType'
/// and places it in the tree. Creates any parents that don't already exist.
/// </remarks>
/// <returns>
/// the created queue, if successful. null if not allowed (one of the parent
/// queues in the queue name is already a leaf queue)
/// </returns>
private FSQueue CreateQueue(string name, FSQueueType queueType)
{
IList <string> newQueueNames = new AList <string>();
newQueueNames.AddItem(name);
int sepIndex = name.Length;
FSParentQueue parent = null;
// Move up the queue tree until we reach one that exists.
while (sepIndex != -1)
{
sepIndex = name.LastIndexOf('.', sepIndex - 1);
FSQueue queue;
string curName = null;
curName = Sharpen.Runtime.Substring(name, 0, sepIndex);
queue = queues[curName];
if (queue == null)
{
newQueueNames.AddItem(curName);
}
else
{
if (queue is FSParentQueue)
{
parent = (FSParentQueue)queue;
break;
}
else
{
return(null);
}
}
}
// At this point, parent refers to the deepest existing parent of the
// queue to create.
// Now that we know everything worked out, make all the queues
// and add them to the map.
AllocationConfiguration queueConf = scheduler.GetAllocationConfiguration();
FSLeafQueue leafQueue = null;
for (int i = newQueueNames.Count - 1; i >= 0; i--)
{
string queueName = newQueueNames[i];
if (i == 0 && queueType != FSQueueType.Parent)
{
leafQueue = new FSLeafQueue(name, scheduler, parent);
try
{
leafQueue.SetPolicy(queueConf.GetDefaultSchedulingPolicy());
}
catch (AllocationConfigurationException ex)
{
Log.Warn("Failed to set default scheduling policy " + queueConf.GetDefaultSchedulingPolicy
() + " on new leaf queue.", ex);
}
parent.AddChildQueue(leafQueue);
queues[leafQueue.GetName()] = leafQueue;
leafQueues.AddItem(leafQueue);
leafQueue.UpdatePreemptionVariables();
return(leafQueue);
}
else
{
FSParentQueue newParent = new FSParentQueue(queueName, scheduler, parent);
try
{
newParent.SetPolicy(queueConf.GetDefaultSchedulingPolicy());
}
catch (AllocationConfigurationException ex)
{
Log.Warn("Failed to set default scheduling policy " + queueConf.GetDefaultSchedulingPolicy
() + " on new parent queue.", ex);
}
parent.AddChildQueue(newParent);
queues[newParent.GetName()] = newParent;
newParent.UpdatePreemptionVariables();
parent = newParent;
}
}
return(parent);
}
/// <exception cref="System.Exception"/>
public virtual void TestIsStarvedForFairShare()
{
conf.Set(FairSchedulerConfiguration.AllocationFile, AllocFile);
PrintWriter @out = new PrintWriter(new FileWriter(AllocFile));
@out.WriteLine("<?xml version=\"1.0\"?>");
@out.WriteLine("<allocations>");
@out.WriteLine("<queue name=\"queueA\">");
@out.WriteLine("<weight>.2</weight>");
@out.WriteLine("</queue>");
@out.WriteLine("<queue name=\"queueB\">");
@out.WriteLine("<weight>.8</weight>");
@out.WriteLine("<fairSharePreemptionThreshold>.4</fairSharePreemptionThreshold>");
@out.WriteLine("<queue name=\"queueB1\">");
@out.WriteLine("</queue>");
@out.WriteLine("<queue name=\"queueB2\">");
@out.WriteLine("<fairSharePreemptionThreshold>.6</fairSharePreemptionThreshold>");
@out.WriteLine("</queue>");
@out.WriteLine("</queue>");
@out.WriteLine("<defaultFairSharePreemptionThreshold>.5</defaultFairSharePreemptionThreshold>"
);
@out.WriteLine("</allocations>");
@out.Close();
resourceManager = new MockRM(conf);
resourceManager.Start();
scheduler = (FairScheduler)resourceManager.GetResourceScheduler();
// Add one big node (only care about aggregate capacity)
RMNode node1 = MockNodes.NewNodeInfo(1, Resources.CreateResource(10 * 1024, 10),
1, "127.0.0.1");
NodeAddedSchedulerEvent nodeEvent1 = new NodeAddedSchedulerEvent(node1);
scheduler.Handle(nodeEvent1);
scheduler.Update();
// Queue A wants 4 * 1024. Node update gives this all to A
CreateSchedulingRequest(1 * 1024, "queueA", "user1", 4);
scheduler.Update();
NodeUpdateSchedulerEvent nodeEvent2 = new NodeUpdateSchedulerEvent(node1);
for (int i = 0; i < 4; i++)
{
scheduler.Handle(nodeEvent2);
}
QueueManager queueMgr = scheduler.GetQueueManager();
FSLeafQueue queueA = queueMgr.GetLeafQueue("queueA", false);
NUnit.Framework.Assert.AreEqual(4 * 1024, queueA.GetResourceUsage().GetMemory());
// Both queue B1 and queue B2 want 3 * 1024
CreateSchedulingRequest(1 * 1024, "queueB.queueB1", "user1", 3);
CreateSchedulingRequest(1 * 1024, "queueB.queueB2", "user1", 3);
scheduler.Update();
for (int i_1 = 0; i_1 < 4; i_1++)
{
scheduler.Handle(nodeEvent2);
}
FSLeafQueue queueB1 = queueMgr.GetLeafQueue("queueB.queueB1", false);
FSLeafQueue queueB2 = queueMgr.GetLeafQueue("queueB.queueB2", false);
NUnit.Framework.Assert.AreEqual(2 * 1024, queueB1.GetResourceUsage().GetMemory());
NUnit.Framework.Assert.AreEqual(2 * 1024, queueB2.GetResourceUsage().GetMemory());
// For queue B1, the fairSharePreemptionThreshold is 0.4, and the fair share
// threshold is 1.6 * 1024
NUnit.Framework.Assert.IsFalse(queueB1.IsStarvedForFairShare());
// For queue B2, the fairSharePreemptionThreshold is 0.6, and the fair share
// threshold is 2.4 * 1024
NUnit.Framework.Assert.IsTrue(queueB2.IsStarvedForFairShare());
// Node checks in again
scheduler.Handle(nodeEvent2);
scheduler.Handle(nodeEvent2);
NUnit.Framework.Assert.AreEqual(3 * 1024, queueB1.GetResourceUsage().GetMemory());
NUnit.Framework.Assert.AreEqual(3 * 1024, queueB2.GetResourceUsage().GetMemory());
// Both queue B1 and queue B2 usages go to 3 * 1024
NUnit.Framework.Assert.IsFalse(queueB1.IsStarvedForFairShare());
NUnit.Framework.Assert.IsFalse(queueB2.IsStarvedForFairShare());
}