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core: fix a bug in health check config propgation. #6804

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merged 1 commit into from Mar 5, 2020
Merged

core: fix a bug in health check config propgation. #6804

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14 changes: 6 additions & 8 deletions core/src/main/java/io/grpc/internal/ManagedChannelImpl.java
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Expand Up @@ -1399,14 +1399,12 @@ public void run() {
Attributes effectiveAttrs = resolutionResult.getAttributes();
// Call LB only if it's not shutdown. If LB is shutdown, lbHelper won't match.
if (NameResolverListener.this.helper == ManagedChannelImpl.this.lbHelper) {
if (effectiveServiceConfig != validServiceConfig) {
Map<String, ?> healthCheckingConfig =
effectiveServiceConfig.getHealthCheckingConfig();
if (healthCheckingConfig != null) {
effectiveAttrs = effectiveAttrs.toBuilder()
.set(LoadBalancer.ATTR_HEALTH_CHECKING_CONFIG, healthCheckingConfig)
.build();
}
Map<String, ?> healthCheckingConfig =
effectiveServiceConfig.getHealthCheckingConfig();
if (healthCheckingConfig != null) {
effectiveAttrs = effectiveAttrs.toBuilder()
.set(LoadBalancer.ATTR_HEALTH_CHECKING_CONFIG, healthCheckingConfig)
.build();
}

Status handleResult = helper.lb.tryHandleResolvedAddresses(
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30 changes: 30 additions & 0 deletions core/src/test/java/io/grpc/internal/ManagedChannelImplTest.java
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Expand Up @@ -3918,6 +3918,36 @@ public void notUseDefaultImmediatelyIfEnableLookUp() throws Exception {
.build());
}

@Test
public void healthCheckingConfigPropagated() throws Exception {
LoadBalancerRegistry.getDefaultRegistry().register(mockLoadBalancerProvider);
try {
FakeNameResolverFactory nameResolverFactory =
new FakeNameResolverFactory.Builder(expectedUri)
.setServers(Collections.singletonList(new EquivalentAddressGroup(socketAddress)))
.build();
channelBuilder.nameResolverFactory(nameResolverFactory);

Map<String, Object> rawServiceConfig =
parseConfig("{\"healthCheckConfig\": {\"serviceName\": \"service1\"}}");
ManagedChannelServiceConfig managedChannelServiceConfig =
createManagedChannelServiceConfig(rawServiceConfig, null);
nameResolverFactory.nextConfigOrError.set(
ConfigOrError.fromConfig(managedChannelServiceConfig));

createChannel();

ArgumentCaptor<ResolvedAddresses> resultCaptor =
ArgumentCaptor.forClass(ResolvedAddresses.class);
verify(mockLoadBalancer).handleResolvedAddresses(resultCaptor.capture());
assertThat(resultCaptor.getValue().getAttributes()
.get(LoadBalancer.ATTR_HEALTH_CHECKING_CONFIG))
.containsExactly("serviceName", "service1");
} finally {
LoadBalancerRegistry.getDefaultRegistry().deregister(mockLoadBalancerProvider);
}
}

private static final class ChannelBuilder
extends AbstractManagedChannelImplBuilder<ChannelBuilder> {

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