Fix handling of OD policy with no child

grpc · Jun 27, 2023 · ed70a0b · ed70a0b
1 parent b53f588
commit ed70a0b
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/packages/grpc-js/src/load-balancer-outlier-detection.ts b/packages/grpc-js/src/load-balancer-outlier-detection.ts
@@ -113,7 +113,7 @@ export class OutlierDetectionLoadBalancingConfig implements LoadBalancingConfig
     failurePercentageEjection: Partial<FailurePercentageEjectionConfig> | null,
     private readonly childPolicy: LoadBalancingConfig[]
   ) {
-    if (childPolicy[0].getLoadBalancerName() === 'pick_first') {
+    if (childPolicy.length > 0 && childPolicy[0].getLoadBalancerName() === 'pick_first') {
       throw new Error('outlier_detection LB policy cannot have a pick_first child policy');
     }
     this.intervalMs = intervalMs ?? 10_000;