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YARN-7728. Expose container preemptions related information in Capacity Scheduler queue metrics. Contributed by Eric Payne.

This commit is contained in:
Sunil G 2018-01-25 14:32:54 +05:30
parent 7721fff744
commit 82cc6f6968
3 changed files with 41 additions and 0 deletions
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18
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/QueueMetrics.java
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@ -68,6 +68,10 @@ public class QueueMetrics implements MetricsSource {
MutableCounterLong aggregateOffSwitchContainersAllocated;
@Metric("Aggregate # of preempted containers") MutableCounterLong
aggregateContainersPreempted;
@Metric("Aggregate # of preempted memory seconds") MutableCounterLong
aggregateMemoryMBSecondsPreempted;
@Metric("Aggregate # of preempted vcore seconds") MutableCounterLong
aggregateVcoreSecondsPreempted;
@Metric("# of active users") MutableGaugeInt activeUsers;
@Metric("# of active applications") MutableGaugeInt activeApplications;
@Metric("App Attempt First Container Allocation Delay")
@ -534,6 +538,20 @@ public void preemptContainer() {
}
}
public void updatePreemptedMemoryMBSeconds(long mbSeconds) {
aggregateMemoryMBSecondsPreempted.incr(mbSeconds);
if (parent != null) {
parent.updatePreemptedMemoryMBSeconds(mbSeconds);
}
}
public void updatePreemptedVcoreSeconds(long vcoreSeconds) {
aggregateVcoreSecondsPreempted.incr(vcoreSeconds);
if (parent != null) {
parent.updatePreemptedVcoreSeconds(vcoreSeconds);
}
}
public void reserveResource(String partition, String user, Resource res) {
if(partition == null || partition.equals(RMNodeLabelsManager.NO_LABEL)) {
reserveResource(user, res);

19
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
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@ -34,6 +34,7 @@
import java.util.concurrent.atomic.AtomicBoolean;
import org.apache.commons.lang.StringUtils;
import org.apache.commons.lang.time.DateUtils;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.hadoop.classification.InterfaceAudience.LimitedPrivate;
@ -46,6 +47,7 @@
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.ContainerExitStatus;
import org.apache.hadoop.yarn.api.records.ContainerId;
import org.apache.hadoop.yarn.api.records.ContainerStatus;
import org.apache.hadoop.yarn.api.records.NodeId;
@ -1821,6 +1823,23 @@ protected void completedContainerInternal(
LeafQueue queue = (LeafQueue) application.getQueue();
queue.completedContainer(getClusterResource(), application, node,
rmContainer, containerStatus, event, null, true);
if (ContainerExitStatus.PREEMPTED == containerStatus.getExitStatus()) {
updateQueuePreemptionMetrics(queue, rmContainer);
}
}
private void updateQueuePreemptionMetrics(
CSQueue queue, RMContainer rmc) {
QueueMetrics qMetrics = queue.getMetrics();
long usedMillis = rmc.getFinishTime() - rmc.getCreationTime();
Resource containerResource = rmc.getAllocatedResource();
qMetrics.preemptContainer();
long mbSeconds = (containerResource.getMemorySize() * usedMillis)
/ DateUtils.MILLIS_PER_SECOND;
long vcSeconds = (containerResource.getVirtualCores() * usedMillis)
/ DateUtils.MILLIS_PER_SECOND;
qMetrics.updatePreemptedMemoryMBSeconds(mbSeconds);
qMetrics.updatePreemptedVcoreSeconds(vcSeconds);
}
@Lock(Lock.NoLock.class)

4
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/capacity/TestCapacitySchedulerSurgicalPreemption.java
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@ -171,6 +171,10 @@ protected RMNodeLabelsManager createNodeLabelManager() {
waitNumberOfLiveContainersOnNodeFromApp(cs.getNode(rmNode2.getNodeID()),
am1.getApplicationAttemptId(), 16);
// Ensure preemption metrics were recored.
Assert.assertEquals("Number of preempted containers incorrectly recorded:",
4, cs.getQueue("root").getMetrics().getAggregatePreemptedContainers());
rm1.close();
}