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YARN-8901. Fixed restart policy NEVER/ON_FAILURE with component dependency.

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Contributed by Suma Shivaprasad
This commit is contained in:
Eric Yang 2019-01-28 18:10:33 -05:00
parent 2e636dd3c4
commit f5a95f7998
4 changed files with 29 additions and 13 deletions
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11
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-applications/hadoop-yarn-services/hadoop-yarn-services-core/src/main/java/org/apache/hadoop/yarn/service/component/NeverRestartPolicy.java
View File

@ -59,11 +59,14 @@ public static NeverRestartPolicy getInstance() {
return false;
}
@Override public boolean isReadyForDownStream(Component component) {
if (hasCompleted(component)) {
return true;
@Override public boolean isReadyForDownStream(Component dependentComponent) {
if (dependentComponent.getNumReadyInstances()
+ dependentComponent.getNumSucceededInstances()
+ dependentComponent.getNumFailedInstances()
< dependentComponent.getNumDesiredInstances()) {
return false;
}
return false;
return true;
}
@Override public boolean allowUpgrades() {

12
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-applications/hadoop-yarn-services/hadoop-yarn-services-core/src/main/java/org/apache/hadoop/yarn/service/component/OnFailureRestartPolicy.java
View File

@ -65,12 +65,14 @@ public static OnFailureRestartPolicy getInstance() {
return false;
}
@Override public boolean isReadyForDownStream(Component component) {
if (hasCompletedSuccessfully(component)) {
return true;
@Override public boolean isReadyForDownStream(Component dependentComponent) {
if (dependentComponent.getNumReadyInstances()
+ dependentComponent.getNumSucceededInstances()
+ dependentComponent.getNumFailedInstances()
< dependentComponent.getNumDesiredInstances()) {
return false;
}
return false;
return true;
}
@Override public boolean allowUpgrades() {

4
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-applications/hadoop-yarn-services/hadoop-yarn-services-core/src/test/java/org/apache/hadoop/yarn/service/component/TestComponentRestartPolicy.java
View File

@ -65,6 +65,7 @@ public void testNeverRestartPolicy() throws Exception {
when(component.getNumSucceededInstances()).thenReturn(new Long(1));
when(component.getNumFailedInstances()).thenReturn(new Long(2));
when(component.getNumDesiredInstances()).thenReturn(3);
when(component.getNumReadyInstances()).thenReturn(3);
ComponentInstance instance = mock(ComponentInstance.class);
when(instance.getComponent()).thenReturn(component);
@ -92,6 +93,7 @@ public void testOnFailureRestartPolicy() throws Exception {
when(component.getNumSucceededInstances()).thenReturn(new Long(3));
when(component.getNumFailedInstances()).thenReturn(new Long(0));
when(component.getNumDesiredInstances()).thenReturn(3);
when(component.getNumReadyInstances()).thenReturn(3);
ComponentInstance instance = mock(ComponentInstance.class);
when(instance.getComponent()).thenReturn(component);
@ -123,7 +125,7 @@ public void testOnFailureRestartPolicy() throws Exception {
assertEquals(true,
restartPolicy.shouldRelaunchInstance(instance, containerStatus));
assertEquals(false, restartPolicy.isReadyForDownStream(component));
assertEquals(true, restartPolicy.isReadyForDownStream(component));
}
}

15
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-applications/hadoop-yarn-services/hadoop-yarn-services-core/src/test/java/org/apache/hadoop/yarn/service/monitor/TestServiceMonitor.java
View File

@ -85,11 +85,15 @@ public void testComponentDependency() throws Exception{
exampleApp.setId(applicationId.toString());
exampleApp.setName("testComponentDependency");
exampleApp.addComponent(createComponent("compa", 1, "sleep 1000"));
Component compb = createComponent("compb", 1, "sleep 1000");
// Let compb depends on compa;
compb.setDependencies(Collections.singletonList("compa"));
Component compb = createComponent("compb", 1, "sleep 1000", Component
.RestartPolicyEnum.ON_FAILURE, Collections.singletonList("compa"));
// Let compb depends on compb;
Component compc = createComponent("compc", 1, "sleep 1000", Component
.RestartPolicyEnum.NEVER, Collections.singletonList("compb"));
exampleApp.addComponent(compb);
exampleApp.addComponent(compc);
MockServiceAM am = new MockServiceAM(exampleApp);
am.init(conf);
@ -105,6 +109,11 @@ public void testComponentDependency() throws Exception{
// waiting for compb's dependencies are satisfied
am.waitForDependenciesSatisfied("compb");
// feed 1 container to compb,
am.feedContainerToComp(exampleApp, 2, "compb");
// waiting for compc's dependencies are satisfied
am.waitForDependenciesSatisfied("compc");
// feed 1 container to compb
am.feedContainerToComp(exampleApp, 2, "compb");
am.flexComponent("compa", 2);