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YARN-278. Fair scheduler maxRunningApps config causes no apps to make progress. (sandyr via tucu) 

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2@1424992 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Alejandro Abdelnur 2012-12-21 16:09:14 +00:00
parent cc2c01fc94
commit 15c515f6be
3 changed files with 68 additions and 1 deletions
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3
hadoop-yarn-project/CHANGES.txt
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@ -129,6 +129,9 @@ Release 2.0.3-alpha - Unreleased
YARN-272. Fair scheduler log messages try to print objects without
overridden toString methods. (sandyr via tucu)
YARN-278. Fair scheduler maxRunningApps config causes no apps to make
progress. (sandyr via tucu)
Release 2.0.2-alpha - 2012-09-07
YARN-9. Rename YARN_HOME to HADOOP_YARN_HOME. (vinodkv via acmurthy)

2
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/fair/FSLeafQueue.java
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@ -177,8 +177,10 @@ public class FSLeafQueue extends FSQueue {
Collections.sort(appScheds, comparator);
for (AppSchedulable sched: appScheds) {
if (sched.getRunnable()) {
return sched.assignContainer(node, reserved);
}
}
return Resources.none();
}

62
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/fair/TestFairScheduler.java
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@ -162,6 +162,13 @@ public class TestFairScheduler {
return id;
}
private void createSchedulingRequestExistingApplication(int memory, int priority, ApplicationAttemptId attId) {
List<ResourceRequest> ask = new ArrayList<ResourceRequest>();
ResourceRequest request = createResourceRequest(memory, "*", priority, 1);
ask.add(request);
scheduler.allocate(attId, ask, new ArrayList<ContainerId>());
}
// TESTS
@Test
@ -1125,4 +1132,59 @@ public class TestFairScheduler {
assertEquals(0,
scheduler.applications.get(attId2).getCurrentReservation().getMemory());
}
@Test
public void testUserMaxRunningApps() throws Exception {
// Set max running apps
Configuration conf = createConfiguration();
conf.set(FairSchedulerConfiguration.ALLOCATION_FILE, ALLOC_FILE);
scheduler.reinitialize(conf, resourceManager.getRMContext());
PrintWriter out = new PrintWriter(new FileWriter(ALLOC_FILE));
out.println("<?xml version=\"1.0\"?>");
out.println("<allocations>");
out.println("<user name=\"user1\">");
out.println("<maxRunningApps>1</maxRunningApps>");
out.println("</user>");
out.println("</allocations>");
out.close();
QueueManager queueManager = scheduler.getQueueManager();
queueManager.initialize();
// Add a node
RMNode node1 = MockNodes.newNodeInfo(1, Resources.createResource(8192));
NodeAddedSchedulerEvent nodeEvent1 = new NodeAddedSchedulerEvent(node1);
scheduler.handle(nodeEvent1);
// Request for app 1
ApplicationAttemptId attId1 = createSchedulingRequest(1024, "queue1",
"user1", 1);
scheduler.update();
NodeUpdateSchedulerEvent updateEvent = new NodeUpdateSchedulerEvent(node1,
new ArrayList<ContainerStatus>(), new ArrayList<ContainerStatus>());
scheduler.handle(updateEvent);
// App 1 should be running
assertEquals(1, scheduler.applications.get(attId1).getLiveContainers().size());
ApplicationAttemptId attId2 = createSchedulingRequest(1024, "queue1",
"user1", 1);
scheduler.update();
scheduler.handle(updateEvent);
// App 2 should not be running
assertEquals(0, scheduler.applications.get(attId2).getLiveContainers().size());
// Request another container for app 1
createSchedulingRequestExistingApplication(1024, 1, attId1);
scheduler.update();
scheduler.handle(updateEvent);
// Request should be fulfilled
assertEquals(2, scheduler.applications.get(attId1).getLiveContainers().size());
}
}