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From viraj...@apache.org
Subject [33/50] [abbrv] hadoop git commit: YARN-7382. NoSuchElementException in FairScheduler after failover causes RM crash (rkanter)
Date Tue, 24 Oct 2017 18:32:07 GMT
YARN-7382. NoSuchElementException in FairScheduler after failover causes RM crash (rkanter)


Project: http://git-wip-us.apache.org/repos/asf/hadoop/repo
Commit: http://git-wip-us.apache.org/repos/asf/hadoop/commit/025c6565
Tree: http://git-wip-us.apache.org/repos/asf/hadoop/tree/025c6565
Diff: http://git-wip-us.apache.org/repos/asf/hadoop/diff/025c6565

Branch: refs/heads/HDFS-9806
Commit: 025c6565725c1819566377632753e8b9055617a6
Parents: 679f99b
Author: Robert Kanter <rkanter@apache.org>
Authored: Tue Oct 24 10:21:44 2017 -0700
Committer: Robert Kanter <rkanter@apache.org>
Committed: Tue Oct 24 10:21:44 2017 -0700

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 .../scheduler/fair/FSAppAttempt.java            | 10 ++++++++++
 .../TestWorkPreservingRMRestart.java            | 21 +++++++++++++++++---
 2 files changed, 28 insertions(+), 3 deletions(-)
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http://git-wip-us.apache.org/repos/asf/hadoop/blob/025c6565/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/fair/FSAppAttempt.java
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diff --git a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/fair/FSAppAttempt.java
b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/fair/FSAppAttempt.java
index 8ab6e13..157d264 100644
--- a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/fair/FSAppAttempt.java
+++ b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/fair/FSAppAttempt.java
@@ -658,6 +658,16 @@ public class FSAppAttempt extends SchedulerApplicationAttempt
       if (!rmContainer.getState().equals(RMContainerState.COMPLETED)) {
         getQueue().incUsedResource(rmContainer.getContainer().getResource());
       }
+
+      // If not running unmanaged, the first container we recover is always
+      // the AM. Set the amResource for this app and update the leaf queue's AM
+      // usage
+      if (!isAmRunning() && !getUnmanagedAM()) {
+        Resource resource = rmContainer.getAllocatedResource();
+        setAMResource(resource);
+        getQueue().addAMResourceUsage(resource);
+        setAmRunning(true);
+      }
     } finally {
       writeLock.unlock();
     }

http://git-wip-us.apache.org/repos/asf/hadoop/blob/025c6565/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/TestWorkPreservingRMRestart.java
----------------------------------------------------------------------
diff --git a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/TestWorkPreservingRMRestart.java
b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/TestWorkPreservingRMRestart.java
index c1cb4c1..064e217 100644
--- a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/TestWorkPreservingRMRestart.java
+++ b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/TestWorkPreservingRMRestart.java
@@ -66,6 +66,7 @@ import org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.LeafQueu
 import org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.ParentQueue;
 import org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.FSAppAttempt;
 import org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.FSParentQueue;
+import org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.FSQueueMetrics;
 import org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.FairScheduler;
 import org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.FairSchedulerConfiguration;
 import org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.FairSchedulerTestBase;
@@ -158,6 +159,7 @@ public class TestWorkPreservingRMRestart extends ParameterizedSchedulerTestBase
         new MockNM("127.0.0.1:1234", 8192, rm1.getResourceTrackerService());
     nm1.registerNode();
     RMApp app1 = rm1.submitApp(200);
+    Resource amResources = app1.getAMResourceRequests().get(0).getCapability();
     MockAM am1 = MockRM.launchAndRegisterAM(app1, rm1, nm1);
 
     // clear queue metrics
@@ -240,7 +242,8 @@ public class TestWorkPreservingRMRestart extends ParameterizedSchedulerTestBase
     if (getSchedulerType() == SchedulerType.CAPACITY) {
       checkCSQueue(rm2, schedulerApp, nmResource, nmResource, usedResources, 2);
     } else {
-      checkFSQueue(rm2, schedulerApp, usedResources, availableResources);
+      checkFSQueue(rm2, schedulerApp, usedResources, availableResources,
+          amResources);
     }
 
     // *********** check scheduler attempt state.********
@@ -310,6 +313,7 @@ public class TestWorkPreservingRMRestart extends ParameterizedSchedulerTestBase
     RMApp app1 = rm1.submitApp(200, "dynamicQApp",
         UserGroupInformation.getCurrentUser().getShortUserName(), null,
         ReservationSystemTestUtil.getReservationQueueName());
+    Resource amResources = app1.getAMResourceRequests().get(0).getCapability();
     MockAM am1 = MockRM.launchAndRegisterAM(app1, rm1, nm1);
 
     // clear queue metrics
@@ -384,7 +388,8 @@ public class TestWorkPreservingRMRestart extends ParameterizedSchedulerTestBase
     if (getSchedulerType() == SchedulerType.CAPACITY) {
       checkCSQueue(rm2, schedulerApp, nmResource, nmResource, usedResources, 2);
     } else {
-      checkFSQueue(rm2, schedulerApp, usedResources, availableResources);
+      checkFSQueue(rm2, schedulerApp, usedResources, availableResources,
+          amResources);
     }
 
     // *********** check scheduler attempt state.********
@@ -456,7 +461,7 @@ public class TestWorkPreservingRMRestart extends ParameterizedSchedulerTestBase
 
   private void checkFSQueue(ResourceManager rm,
       SchedulerApplication  schedulerApp, Resource usedResources,
-      Resource availableResources) throws Exception {
+      Resource availableResources, Resource amResources) throws Exception {
     // waiting for RM's scheduling apps
     int retry = 0;
     Resource assumedFairShare = Resource.newInstance(8192, 8);
@@ -488,6 +493,16 @@ public class TestWorkPreservingRMRestart extends ParameterizedSchedulerTestBase
     assertMetrics(queueMetrics, 1, 0, 1, 0, 2, availableResources.getMemorySize(),
         availableResources.getVirtualCores(), usedResources.getMemorySize(),
         usedResources.getVirtualCores());
+
+    // ************ check AM resources ****************
+    assertEquals(amResources,
+        schedulerApp.getCurrentAppAttempt().getAMResource());
+    FSQueueMetrics fsQueueMetrics =
+        (FSQueueMetrics) schedulerApp.getQueue().getMetrics();
+    assertEquals(amResources.getMemorySize(),
+        fsQueueMetrics.getAMResourceUsageMB());
+    assertEquals(amResources.getVirtualCores(),
+        fsQueueMetrics.getAMResourceUsageVCores());
   }
 
   // create 3 container reports for AM


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