private static void AssertBlacklistAdditionsAndRemovals(int expectedAdditions, int
expectedRemovals, TestAMRMClientOnRMRestart.MyResourceManager rm)
{
NUnit.Framework.Assert.AreEqual(expectedAdditions, rm.GetMyFifoScheduler().lastBlacklistAdditions
.Count);
NUnit.Framework.Assert.AreEqual(expectedRemovals, rm.GetMyFifoScheduler().lastBlacklistRemovals
.Count);
}
private static void AssertAsksAndReleases(int expectedAsk, int expectedRelease, TestAMRMClientOnRMRestart.MyResourceManager
rm)
{
NUnit.Framework.Assert.AreEqual(expectedAsk, rm.GetMyFifoScheduler().lastAsk.Count
);
NUnit.Framework.Assert.AreEqual(expectedRelease, rm.GetMyFifoScheduler().lastRelease
.Count);
}
// Test does major 6 steps verification.
// Step-1 : AMRMClient send allocate request for 2 container requests
// Step-2 : 2 containers are allocated by RM.
// Step-3 : AM Send 1 containerRequest(cRequest3) and 1 releaseRequests to
// RM
// Step-4 : On RM restart, AM(does not know RM is restarted) sends additional
// containerRequest(cRequest4) and blacklisted nodes.
// Intern RM send resync command
// Step-5 : Allocater after resync command & new containerRequest(cRequest5)
// Step-6 : RM allocates containers i.e cRequest3,cRequest4 and cRequest5
/// <exception cref="System.Exception"/>
public virtual void TestAMRMClientResendsRequestsOnRMRestart()
{
UserGroupInformation.SetLoginUser(null);
MemoryRMStateStore memStore = new MemoryRMStateStore();
memStore.Init(conf);
// Phase-1 Start 1st RM
TestAMRMClientOnRMRestart.MyResourceManager rm1 = new TestAMRMClientOnRMRestart.MyResourceManager
(conf, memStore);
rm1.Start();
DrainDispatcher dispatcher = (DrainDispatcher)rm1.GetRMContext().GetDispatcher();
// Submit the application
RMApp app = rm1.SubmitApp(1024);
dispatcher.Await();
MockNM nm1 = new MockNM("h1:1234", 15120, rm1.GetResourceTrackerService());
nm1.RegisterNode();
nm1.NodeHeartbeat(true);
// Node heartbeat
dispatcher.Await();
ApplicationAttemptId appAttemptId = app.GetCurrentAppAttempt().GetAppAttemptId();
rm1.SendAMLaunched(appAttemptId);
dispatcher.Await();
Org.Apache.Hadoop.Security.Token.Token <AMRMTokenIdentifier> token = rm1.GetRMContext
().GetRMApps()[appAttemptId.GetApplicationId()].GetRMAppAttempt(appAttemptId).GetAMRMToken
();
UserGroupInformation ugi = UserGroupInformation.GetCurrentUser();
ugi.AddTokenIdentifier(token.DecodeIdentifier());
// Step-1 : AMRMClient send allocate request for 2 ContainerRequest
// cRequest1 = h1 and cRequest2 = h1,h2
// blacklisted nodes = h2
AMRMClient <AMRMClient.ContainerRequest> amClient = new TestAMRMClientOnRMRestart.MyAMRMClientImpl
(rm1);
amClient.Init(conf);
amClient.Start();
amClient.RegisterApplicationMaster("Host", 10000, string.Empty);
AMRMClient.ContainerRequest cRequest1 = CreateReq(1, 1024, new string[] { "h1" });
amClient.AddContainerRequest(cRequest1);
AMRMClient.ContainerRequest cRequest2 = CreateReq(1, 1024, new string[] { "h1", "h2" });
amClient.AddContainerRequest(cRequest2);
IList <string> blacklistAdditions = new AList <string>();
IList <string> blacklistRemoval = new AList <string>();
blacklistAdditions.AddItem("h2");
blacklistRemoval.AddItem("h10");
amClient.UpdateBlacklist(blacklistAdditions, blacklistRemoval);
blacklistAdditions.Remove("h2");
// remove from local list
AllocateResponse allocateResponse = amClient.Allocate(0.1f);
dispatcher.Await();
NUnit.Framework.Assert.AreEqual("No of assignments must be 0", 0, allocateResponse
.GetAllocatedContainers().Count);
// Why 4 ask, why not 3 ask even h2 is blacklisted?
// On blacklisting host,applicationmaster has to remove ask request from
// remoterequest table.Here,test does not remove explicitely
AssertAsksAndReleases(4, 0, rm1);
AssertBlacklistAdditionsAndRemovals(1, 1, rm1);
// Step-2 : NM heart beat is sent.
// On 2nd AM allocate request, RM allocates 2 containers to AM
nm1.NodeHeartbeat(true);
// Node heartbeat
dispatcher.Await();
allocateResponse = amClient.Allocate(0.2f);
dispatcher.Await();
// 2 containers are allocated i.e for cRequest1 and cRequest2.
NUnit.Framework.Assert.AreEqual("No of assignments must be 0", 2, allocateResponse
.GetAllocatedContainers().Count);
AssertAsksAndReleases(0, 0, rm1);
AssertBlacklistAdditionsAndRemovals(0, 0, rm1);
IList <Container> allocatedContainers = allocateResponse.GetAllocatedContainers();
// removed allocated container requests
amClient.RemoveContainerRequest(cRequest1);
amClient.RemoveContainerRequest(cRequest2);
allocateResponse = amClient.Allocate(0.2f);
dispatcher.Await();
NUnit.Framework.Assert.AreEqual("No of assignments must be 0", 0, allocateResponse
.GetAllocatedContainers().Count);
AssertAsksAndReleases(4, 0, rm1);
AssertBlacklistAdditionsAndRemovals(0, 0, rm1);
// Step-3 : Send 1 containerRequest and 1 releaseRequests to RM
AMRMClient.ContainerRequest cRequest3 = CreateReq(1, 1024, new string[] { "h1" });
amClient.AddContainerRequest(cRequest3);
int pendingRelease = 0;
IEnumerator <Container> it = allocatedContainers.GetEnumerator();
while (it.HasNext())
{
amClient.ReleaseAssignedContainer(it.Next().GetId());
pendingRelease++;
it.Remove();
break;
}
// remove one container
allocateResponse = amClient.Allocate(0.3f);
dispatcher.Await();
NUnit.Framework.Assert.AreEqual("No of assignments must be 0", 0, allocateResponse
.GetAllocatedContainers().Count);
AssertAsksAndReleases(3, pendingRelease, rm1);
AssertBlacklistAdditionsAndRemovals(0, 0, rm1);
int completedContainer = allocateResponse.GetCompletedContainersStatuses().Count;
pendingRelease -= completedContainer;
// Phase-2 start 2nd RM is up
TestAMRMClientOnRMRestart.MyResourceManager rm2 = new TestAMRMClientOnRMRestart.MyResourceManager
(conf, memStore);
rm2.Start();
nm1.SetResourceTrackerService(rm2.GetResourceTrackerService());
((TestAMRMClientOnRMRestart.MyAMRMClientImpl)amClient).UpdateRMProxy(rm2);
dispatcher = (DrainDispatcher)rm2.GetRMContext().GetDispatcher();
// NM should be rebooted on heartbeat, even first heartbeat for nm2
NodeHeartbeatResponse hbResponse = nm1.NodeHeartbeat(true);
NUnit.Framework.Assert.AreEqual(NodeAction.Resync, hbResponse.GetNodeAction());
// new NM to represent NM re-register
nm1 = new MockNM("h1:1234", 10240, rm2.GetResourceTrackerService());
nm1.RegisterNode();
nm1.NodeHeartbeat(true);
dispatcher.Await();
blacklistAdditions.AddItem("h3");
amClient.UpdateBlacklist(blacklistAdditions, null);
blacklistAdditions.Remove("h3");
it = allocatedContainers.GetEnumerator();
while (it.HasNext())
{
amClient.ReleaseAssignedContainer(it.Next().GetId());
pendingRelease++;
it.Remove();
}
AMRMClient.ContainerRequest cRequest4 = CreateReq(1, 1024, new string[] { "h1", "h2" });
amClient.AddContainerRequest(cRequest4);
// Step-4 : On RM restart, AM(does not know RM is restarted) sends
// additional
// containerRequest and blacklisted nodes.
// Intern RM send resync command,AMRMClient resend allocate request
allocateResponse = amClient.Allocate(0.3f);
dispatcher.Await();
completedContainer = allocateResponse.GetCompletedContainersStatuses().Count;
pendingRelease -= completedContainer;
AssertAsksAndReleases(4, pendingRelease, rm2);
AssertBlacklistAdditionsAndRemovals(2, 0, rm2);
AMRMClient.ContainerRequest cRequest5 = CreateReq(1, 1024, new string[] { "h1", "h2"
, "h3" });
amClient.AddContainerRequest(cRequest5);
// Step-5 : Allocater after resync command
allocateResponse = amClient.Allocate(0.5f);
dispatcher.Await();
NUnit.Framework.Assert.AreEqual("No of assignments must be 0", 0, allocateResponse
.GetAllocatedContainers().Count);
AssertAsksAndReleases(5, 0, rm2);
AssertBlacklistAdditionsAndRemovals(0, 0, rm2);
int noAssignedContainer = 0;
int count = 5;
while (count-- > 0)
{
nm1.NodeHeartbeat(true);
dispatcher.Await();
allocateResponse = amClient.Allocate(0.5f);
dispatcher.Await();
noAssignedContainer += allocateResponse.GetAllocatedContainers().Count;
if (noAssignedContainer == 3)
{
break;
}
Sharpen.Thread.Sleep(1000);
}
// Step-6 : RM allocates containers i.e cRequest3,cRequest4 and cRequest5
NUnit.Framework.Assert.AreEqual("Number of container should be 3", 3, noAssignedContainer
);
amClient.Stop();
rm1.Stop();
rm2.Stop();
}
public virtual void UpdateRMProxy(TestAMRMClientOnRMRestart.MyResourceManager rm)
{
rmClient = rm.GetApplicationMasterService();
}
public MyAMRMClientImpl(TestAMRMClientOnRMRestart.MyResourceManager rm)
{
this.rm = rm;
}
// Test verify for
// 1. AM try to unregister without registering
// 2. AM register to RM, and try to unregister immediately after RM restart
/// <exception cref="System.Exception"/>
public virtual void TestAMRMClientForUnregisterAMOnRMRestart()
{
MemoryRMStateStore memStore = new MemoryRMStateStore();
memStore.Init(conf);
// Phase-1 Start 1st RM
TestAMRMClientOnRMRestart.MyResourceManager rm1 = new TestAMRMClientOnRMRestart.MyResourceManager
(conf, memStore);
rm1.Start();
DrainDispatcher dispatcher = (DrainDispatcher)rm1.GetRMContext().GetDispatcher();
// Submit the application
RMApp app = rm1.SubmitApp(1024);
dispatcher.Await();
MockNM nm1 = new MockNM("h1:1234", 15120, rm1.GetResourceTrackerService());
nm1.RegisterNode();
nm1.NodeHeartbeat(true);
// Node heartbeat
dispatcher.Await();
ApplicationAttemptId appAttemptId = app.GetCurrentAppAttempt().GetAppAttemptId();
rm1.SendAMLaunched(appAttemptId);
dispatcher.Await();
Org.Apache.Hadoop.Security.Token.Token <AMRMTokenIdentifier> token = rm1.GetRMContext
().GetRMApps()[appAttemptId.GetApplicationId()].GetRMAppAttempt(appAttemptId).GetAMRMToken
();
UserGroupInformation ugi = UserGroupInformation.GetCurrentUser();
ugi.AddTokenIdentifier(token.DecodeIdentifier());
AMRMClient <AMRMClient.ContainerRequest> amClient = new TestAMRMClientOnRMRestart.MyAMRMClientImpl
(rm1);
amClient.Init(conf);
amClient.Start();
amClient.RegisterApplicationMaster("h1", 10000, string.Empty);
amClient.Allocate(0.1f);
// Phase-2 start 2nd RM is up
TestAMRMClientOnRMRestart.MyResourceManager rm2 = new TestAMRMClientOnRMRestart.MyResourceManager
(conf, memStore);
rm2.Start();
nm1.SetResourceTrackerService(rm2.GetResourceTrackerService());
((TestAMRMClientOnRMRestart.MyAMRMClientImpl)amClient).UpdateRMProxy(rm2);
dispatcher = (DrainDispatcher)rm2.GetRMContext().GetDispatcher();
// NM should be rebooted on heartbeat, even first heartbeat for nm2
NodeHeartbeatResponse hbResponse = nm1.NodeHeartbeat(true);
NUnit.Framework.Assert.AreEqual(NodeAction.Resync, hbResponse.GetNodeAction());
// new NM to represent NM re-register
nm1 = new MockNM("h1:1234", 10240, rm2.GetResourceTrackerService());
ContainerId containerId = ContainerId.NewContainerId(appAttemptId, 1);
NMContainerStatus containerReport = NMContainerStatus.NewInstance(containerId, ContainerState
.Running, Resource.NewInstance(1024, 1), "recover container", 0, Priority.NewInstance
(0), 0);
nm1.RegisterNode(Arrays.AsList(containerReport), null);
nm1.NodeHeartbeat(true);
dispatcher.Await();
amClient.UnregisterApplicationMaster(FinalApplicationStatus.Succeeded, null, null
);
rm2.WaitForState(appAttemptId, RMAppAttemptState.Finishing);
nm1.NodeHeartbeat(appAttemptId, 1, ContainerState.Complete);
rm2.WaitForState(appAttemptId, RMAppAttemptState.Finished);
rm2.WaitForState(app.GetApplicationId(), RMAppState.Finished);
amClient.Stop();
rm1.Stop();
rm2.Stop();
}