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MAPREDUCE-3126. Fixed a corner case in CapacityScheduler where headroom wasn't updated on changes to cluster size.

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git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1182000 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Arun Murthy 2011-10-11 18:24:32 +00:00
parent 1c358b0796
commit b8f0836f94
5 changed files with 101 additions and 12 deletions
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5
hadoop-mapreduce-project/CHANGES.txt
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@ -1565,7 +1565,7 @@ Release 0.23.0 - Unreleased
job submission files to fail fast. (Abhijit Suresh Shingate via acmurthy)
MAPREDUCE-3158. Fix test failures in MRv1 due to default framework being
set to yarn. (Hitesh Shah via acmurhty)
set to yarn. (Hitesh Shah via acmurthy)
MAPREDUCE-3167. container-executor is not being packaged with the assembly
target. (mahadev)
@ -1576,6 +1576,9 @@ Release 0.23.0 - Unreleased
MAPREDUCE-2668. Fixed AuxServices to send a signal on application-finish
to all the services. (Thomas Graves via vinodkv)
MAPREDUCE-3126. Fixed a corner case in CapacityScheduler where headroom
wasn't updated on changes to cluster size. (acmurthy)
Release 0.22.0 - Unreleased
INCOMPATIBLE CHANGES

6
hadoop-mapreduce-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/capacity/CapacitySchedulerConfiguration.java
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@ -165,6 +165,12 @@ public int getUserLimit(String queue) {
getInt(getQueuePrefix(queue) + USER_LIMIT, DEFAULT_USER_LIMIT);
return userLimit;
}
public void setUserLimit(String queue, int userLimit) {
setInt(getQueuePrefix(queue) + USER_LIMIT, userLimit);
LOG.info("here setUserLimit: queuePrefix=" + getQueuePrefix(queue) +
", userLimit=" + getUserLimit(queue));
}
public float getUserLimitFactor(String queue) {
float userLimitFactor =

23
hadoop-mapreduce-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/capacity/LeafQueue.java
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@ -698,9 +698,7 @@ private synchronized SchedulerApp getApplication(
application.showRequests();
synchronized (application) {
Resource userLimit =
computeUserLimit(application, clusterResource, Resources.none());
setUserResourceLimit(application, userLimit);
computeAndSetUserResourceLimit(application, clusterResource);
for (Priority priority : application.getPriorities()) {
// Required resource
@ -719,7 +717,7 @@ private synchronized SchedulerApp getApplication(
}
// User limits
userLimit =
Resource userLimit =
computeUserLimit(application, clusterResource, required);
if (!assignToUser(application.getUser(), userLimit)) {
break;
@ -807,10 +805,13 @@ private synchronized boolean assignToQueue(Resource clusterResource,
return true;
}
private void setUserResourceLimit(SchedulerApp application,
Resource resourceLimit) {
application.setAvailableResourceLimit(resourceLimit);
metrics.setAvailableResourcesToUser(application.getUser(), application.getHeadroom());
private void computeAndSetUserResourceLimit(SchedulerApp application,
Resource clusterResource) {
Resource userLimit =
computeUserLimit(application, clusterResource, Resources.none());
application.setAvailableResourceLimit(userLimit);
metrics.setAvailableResourcesToUser(application.getUser(),
application.getHeadroom());
}
private int roundUp(int memory) {
@ -1270,12 +1271,18 @@ synchronized void releaseResource(Resource clusterResource,
@Override
public synchronized void updateClusterResource(Resource clusterResource) {
// Update queue properties
maxActiveApplications =
computeMaxActiveApplications(clusterResource, maxAMResourcePercent,
absoluteCapacity);
maxActiveApplicationsPerUser =
computeMaxActiveApplicationsPerUser(maxActiveApplications, userLimit,
userLimitFactor);
// Update application properties
for (SchedulerApp application : activeApplications) {
computeAndSetUserResourceLimit(application, clusterResource);
}
}
private synchronized void updateResource(Resource clusterResource) {

77
hadoop-mapreduce-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/capacity/TestApplicationLimits.java
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@ -14,6 +14,7 @@
import org.apache.hadoop.yarn.api.records.Resource;
import org.apache.hadoop.yarn.server.resourcemanager.resource.Resources;
import org.apache.hadoop.yarn.server.resourcemanager.scheduler.SchedulerApp;
import org.apache.hadoop.yarn.server.resourcemanager.scheduler.SchedulerNode;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;
@ -101,8 +102,10 @@ public void testLimitsComputation() throws Exception {
CapacitySchedulerContext csContext = mock(CapacitySchedulerContext.class);
when(csContext.getConfiguration()).thenReturn(csConf);
when(csContext.getMinimumResourceCapability()).thenReturn(Resources.createResource(GB));
when(csContext.getMaximumResourceCapability()).thenReturn(Resources.createResource(16*GB));
when(csContext.getMinimumResourceCapability()).
thenReturn(Resources.createResource(GB));
when(csContext.getMaximumResourceCapability()).
thenReturn(Resources.createResource(16*GB));
// Say cluster has 100 nodes of 16G each
Resource clusterResource = Resources.createResource(100 * 16 * GB);
@ -227,6 +230,76 @@ public void testActiveApplicationLimits() throws Exception {
assertEquals(0, queue.getNumPendingApplications(user_1));
}
@Test
public void testHeadroom() throws Exception {
CapacitySchedulerConfiguration csConf =
new CapacitySchedulerConfiguration();
csConf.setUserLimit(CapacityScheduler.ROOT + "." + A, 25);
setupQueueConfiguration(csConf);
CapacitySchedulerContext csContext = mock(CapacitySchedulerContext.class);
when(csContext.getConfiguration()).thenReturn(csConf);
when(csContext.getMinimumResourceCapability()).
thenReturn(Resources.createResource(GB));
when(csContext.getMaximumResourceCapability()).
thenReturn(Resources.createResource(16*GB));
// Say cluster has 100 nodes of 16G each
Resource clusterResource = Resources.createResource(100 * 16 * GB);
when(csContext.getClusterResources()).thenReturn(clusterResource);
Map<String, CSQueue> queues = new HashMap<String, CSQueue>();
CapacityScheduler.parseQueue(csContext, csConf, null, "root",
queues, queues,
CapacityScheduler.queueComparator,
CapacityScheduler.applicationComparator,
TestUtils.spyHook);
// Manipulate queue 'a'
LeafQueue queue = TestLeafQueue.stubLeafQueue((LeafQueue)queues.get(A));
String host_0 = "host_0";
String rack_0 = "rack_0";
SchedulerNode node_0 = TestUtils.getMockNode(host_0, rack_0, 0, 16*GB);
final String user_0 = "user_0";
final String user_1 = "user_1";
int APPLICATION_ID = 0;
// Submit first application from user_0, check headroom
SchedulerApp app_0_0 = getMockApplication(APPLICATION_ID++, user_0);
queue.submitApplication(app_0_0, user_0, A);
queue.assignContainers(clusterResource, node_0); // Schedule to compute
Resource expectedHeadroom = Resources.createResource(10*16*GB);
verify(app_0_0).setAvailableResourceLimit(eq(expectedHeadroom));
// Submit second application from user_0, check headroom
SchedulerApp app_0_1 = getMockApplication(APPLICATION_ID++, user_0);
queue.submitApplication(app_0_1, user_0, A);
queue.assignContainers(clusterResource, node_0); // Schedule to compute
verify(app_0_0, times(2)).setAvailableResourceLimit(eq(expectedHeadroom));
verify(app_0_1).setAvailableResourceLimit(eq(expectedHeadroom));// no change
// Submit first application from user_1, check for new headroom
SchedulerApp app_1_0 = getMockApplication(APPLICATION_ID++, user_1);
queue.submitApplication(app_1_0, user_1, A);
queue.assignContainers(clusterResource, node_0); // Schedule to compute
expectedHeadroom = Resources.createResource(10*16*GB / 2); // changes
verify(app_0_0).setAvailableResourceLimit(eq(expectedHeadroom));
verify(app_0_1).setAvailableResourceLimit(eq(expectedHeadroom));
verify(app_1_0).setAvailableResourceLimit(eq(expectedHeadroom));
// Now reduce cluster size and check for the smaller headroom
clusterResource = Resources.createResource(90*16*GB);
queue.assignContainers(clusterResource, node_0); // Schedule to compute
expectedHeadroom = Resources.createResource(9*16*GB / 2); // changes
verify(app_0_0).setAvailableResourceLimit(eq(expectedHeadroom));
verify(app_0_1).setAvailableResourceLimit(eq(expectedHeadroom));
verify(app_1_0).setAvailableResourceLimit(eq(expectedHeadroom));
}
@After
public void tearDown() {

2
hadoop-mapreduce-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/capacity/TestLeafQueue.java
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@ -117,7 +117,7 @@ private void setupQueueConfiguration(CapacitySchedulerConfiguration conf) {
LOG.info("Setup top-level queues a and b");
}
private LeafQueue stubLeafQueue(LeafQueue queue) {
static LeafQueue stubLeafQueue(LeafQueue queue) {
// Mock some methods for ease in these unit tests