diff --git hadoop-yarn-project/hadoop-yarn/hadoop-yarn-api/src/main/java/org/apache/hadoop/yarn/conf/YarnConfiguration.java hadoop-yarn-project/hadoop-yarn/hadoop-yarn-api/src/main/java/org/apache/hadoop/yarn/conf/YarnConfiguration.java index 7c71a17..f33856b 100644 --- hadoop-yarn-project/hadoop-yarn/hadoop-yarn-api/src/main/java/org/apache/hadoop/yarn/conf/YarnConfiguration.java +++ hadoop-yarn-project/hadoop-yarn/hadoop-yarn-api/src/main/java/org/apache/hadoop/yarn/conf/YarnConfiguration.java @@ -340,6 +340,10 @@ public static final boolean DEFAULT_RM_WORK_PRESERVING_RECOVERY_ENABLED = false; + public static final String RM_RECOVERY_WAIT_MS = RM_PREFIX + + "recovery-wait-ms"; + public static final long DEFAULT_RM_RECOVERY_WAIT_MS = 10000; + /** Zookeeper interaction configs */ public static final String RM_ZK_PREFIX = RM_PREFIX + "zk-"; diff --git hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/main/resources/yarn-default.xml hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/main/resources/yarn-default.xml index 04e458c..6e2f108 100644 --- hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/main/resources/yarn-default.xml +++ hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/main/resources/yarn-default.xml @@ -298,6 +298,16 @@ + Set the amount of time RM waits before allocating new + containers on work-preserving-recovery. Such wait period gives RM a chance + to settle down resyncing with NMs in the cluster on recovery, before assigning + new containers to applications. + + yarn.resourcemanager.recovery-wait-ms + 10000 + + + The class to use as the persistent store. If org.apache.hadoop.yarn.server.resourcemanager.recovery.ZKRMStateStore diff --git hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/RMContext.java hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/RMContext.java index 01d5064..2086b50 100644 --- hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/RMContext.java +++ hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/RMContext.java @@ -101,6 +101,8 @@ void setRMApplicationHistoryWriter( ConfigurationProvider getConfigurationProvider(); boolean isWorkPreservingRecoveryEnabled(); - + int getEpoch(); -} \ No newline at end of file + + boolean isSchedulerReadyForAllocatingContainers(); +} diff --git hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/RMContextImpl.java hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/RMContextImpl.java index f72ef30..e729ac5 100644 --- hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/RMContextImpl.java +++ hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/RMContextImpl.java @@ -83,6 +83,8 @@ private RMApplicationHistoryWriter rmApplicationHistoryWriter; private ConfigurationProvider configurationProvider; private int epoch; + private long schedulerRecoveryStartTime = 0; + private long schedulerRecoveryWaitTime = 0; /** * Default constructor. To be used in conjunction with setter methods for @@ -366,7 +368,17 @@ public int getEpoch() { return this.epoch; } - void setEpoch(int epoch) { + void setEpoch(int epoch) { this.epoch = epoch; } -} \ No newline at end of file + + public void setSchedulerRecoveryStartAndWaitTime(long waitTime) { + this.schedulerRecoveryStartTime = System.currentTimeMillis(); + this.schedulerRecoveryWaitTime = waitTime; + } + + public boolean isSchedulerReadyForAllocatingContainers() { + return (System.currentTimeMillis() - schedulerRecoveryStartTime) + > schedulerRecoveryWaitTime; + } +} diff --git hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/ResourceManager.java hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/ResourceManager.java index f315702..eb169b5 100644 --- hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/ResourceManager.java +++ hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/ResourceManager.java @@ -1122,6 +1122,8 @@ public void recover(RMState state) throws Exception { // recover applications rmAppManager.recover(state); + + setSchedulerRecoveryStartAndWaitTime(state, conf); } public static void main(String argv[]) { @@ -1169,6 +1171,16 @@ private void resetDispatcher() { rmContext.setDispatcher(rmDispatcher); } + private void setSchedulerRecoveryStartAndWaitTime(RMState state, + Configuration conf) { + if (!state.getApplicationState().isEmpty()) { + long waitTime = + conf.getLong(YarnConfiguration.RM_RECOVERY_WAIT_MS, + YarnConfiguration.DEFAULT_RM_RECOVERY_WAIT_MS); + rmContext.setSchedulerRecoveryStartAndWaitTime(waitTime); + } + } + /** * Retrieve RM bind address from configuration * diff --git hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/capacity/CapacityScheduler.java hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/capacity/CapacityScheduler.java index 6b810d7..b1b93fe 100644 --- hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/capacity/CapacityScheduler.java +++ hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/capacity/CapacityScheduler.java @@ -902,6 +902,11 @@ private synchronized void updateNodeAndQueueResource(RMNode nm, } private synchronized void allocateContainersToNode(FiCaSchedulerNode node) { + if (rmContext.isWorkPreservingRecoveryEnabled() + && !rmContext.isSchedulerReadyForAllocatingContainers()) { + LOG.info("Skip allocating containers. Scheduler is waiting for recovery."); + return; + } // Assign new containers... // 1. Check for reserved applications diff --git hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/fair/FairScheduler.java hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/fair/FairScheduler.java index 9c40d48..cfcdbb7 100644 --- hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/fair/FairScheduler.java +++ hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/fair/FairScheduler.java @@ -1015,6 +1015,12 @@ public int compare(NodeId n1, NodeId n2) { } private synchronized void attemptScheduling(FSSchedulerNode node) { + if (rmContext.isWorkPreservingRecoveryEnabled() + && !rmContext.isSchedulerReadyForAllocatingContainers()) { + LOG.info("Skip allocating containers. Scheduler is waiting for recovery."); + return; + } + // Assign new containers... // 1. Check for reserved applications // 2. Schedule if there are no reservations diff --git hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/fifo/FifoScheduler.java hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/fifo/FifoScheduler.java index d72e796..b305bfe 100644 --- hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/fifo/FifoScheduler.java +++ hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/fifo/FifoScheduler.java @@ -702,6 +702,13 @@ private synchronized void nodeUpdate(RMNode rmNode) { completedContainer, RMContainerEventType.FINISHED); } + + if (rmContext.isWorkPreservingRecoveryEnabled() + && !rmContext.isSchedulerReadyForAllocatingContainers()) { + LOG.info("Skip allocating containers. Scheduler is waiting for recovery."); + return; + } + if (Resources.greaterThanOrEqual(resourceCalculator, clusterResource, node.getAvailableResource(),minimumAllocation)) { LOG.debug("Node heartbeat " + rmNode.getNodeID() + diff --git hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/TestWorkPreservingRMRestart.java hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/TestWorkPreservingRMRestart.java index d6af0d7..25eb917 100644 --- hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/TestWorkPreservingRMRestart.java +++ hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/TestWorkPreservingRMRestart.java @@ -37,10 +37,12 @@ import org.apache.hadoop.yarn.api.protocolrecords.AllocateResponse; import org.apache.hadoop.yarn.api.records.ApplicationAttemptId; import org.apache.hadoop.yarn.api.records.ApplicationId; +import org.apache.hadoop.yarn.api.records.Container; import org.apache.hadoop.yarn.api.records.ContainerId; import org.apache.hadoop.yarn.api.records.ContainerState; import org.apache.hadoop.yarn.api.records.ContainerStatus; import org.apache.hadoop.yarn.api.records.Resource; +import org.apache.hadoop.yarn.api.records.ResourceRequest; import org.apache.hadoop.yarn.conf.YarnConfiguration; import org.apache.hadoop.yarn.server.api.protocolrecords.NMContainerStatus; import org.apache.hadoop.yarn.server.resourcemanager.recovery.MemoryRMStateStore; @@ -479,6 +481,7 @@ private void checkParentQueue(ParentQueue parentQueue, int numContainers, @Test(timeout = 20000) public void testAMfailedBetweenRMRestart() throws Exception { MemoryRMStateStore memStore = new MemoryRMStateStore(); + conf.setLong(YarnConfiguration.RM_RECOVERY_WAIT_MS, 0); memStore.init(conf); rm1 = new MockRM(conf, memStore); rm1.start(); @@ -762,4 +765,48 @@ public static void waitForNumContainersToRecover(int num, MockRM rm, Thread.sleep(200); } } + + @Test (timeout = 20000) + public void testNewContainersNotAllocatedDuringSchedulerRecovery() + throws Exception { + conf.setLong(YarnConfiguration.RM_RECOVERY_WAIT_MS, 4000); + MemoryRMStateStore memStore = new MemoryRMStateStore(); + memStore.init(conf); + rm1 = new MockRM(conf, memStore); + rm1.start(); + MockNM nm1 = + new MockNM("127.0.0.1:1234", 8192, rm1.getResourceTrackerService()); + nm1.registerNode(); + RMApp app1 = rm1.submitApp(200); + MockAM am1 = MockRM.launchAndRegisterAM(app1, rm1, nm1); + + // Restart RM + rm2 = new MockRM(conf, memStore); + rm2.start(); + nm1.setResourceTrackerService(rm2.getResourceTrackerService()); + nm1.registerNode(); + + am1.setAMRMProtocol(rm2.getApplicationMasterService(), rm2.getRMContext()); + am1.registerAppAttempt(true); + rm2.waitForState(app1.getApplicationId(), RMAppState.RUNNING); + + // AM request for containers + am1.allocate("127.0.0.1", 1000, 1, new ArrayList()); + + List containers = new ArrayList(); + long startTime = System.currentTimeMillis(); + do { + nm1.nodeHeartbeat(true); + containers.addAll(am1.allocate(new ArrayList(), + new ArrayList()).getAllocatedContainers()); + Thread.sleep(200); + // New containers should not be allocated when scheduler is recovering. + if (System.currentTimeMillis() - startTime < 2000) { + Assert.assertTrue(containers.isEmpty()); + } + System.out.println("Elapsed time: " + + (System.currentTimeMillis() - startTime) + ", Container size : " + + containers.size()); + } while (containers.size() != 1); + } }