From b3c24d080f4623952ac2d693b85e567ad51c78d2 Mon Sep 17 00:00:00 2001
From: Michael Lumish <mlumish@google.com>
Date: Thu, 12 Sep 2024 14:31:01 -0700
Subject: [PATCH] grpc-js: round_robin: Request resolution on connection drop

---
 packages/grpc-js/package.json                     | 2 +-
 packages/grpc-js/src/load-balancer-round-robin.ts | 7 +++++++
 2 files changed, 8 insertions(+), 1 deletion(-)

diff --git a/packages/grpc-js/package.json b/packages/grpc-js/package.json
index 73cbb2b95..5cb8796e8 100644
--- a/packages/grpc-js/package.json
+++ b/packages/grpc-js/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@grpc/grpc-js",
-  "version": "1.11.2",
+  "version": "1.11.3",
   "description": "gRPC Library for Node - pure JS implementation",
   "homepage": "https://grpc.io/",
   "repository": "https://github.com/grpc/grpc-node/tree/master/packages/grpc-js",
diff --git a/packages/grpc-js/src/load-balancer-round-robin.ts b/packages/grpc-js/src/load-balancer-round-robin.ts
index 7e70c554f..6e2b0b11d 100644
--- a/packages/grpc-js/src/load-balancer-round-robin.ts
+++ b/packages/grpc-js/src/load-balancer-round-robin.ts
@@ -110,6 +110,13 @@ export class RoundRobinLoadBalancer implements LoadBalancer {
       channelControlHelper,
       {
         updateState: (connectivityState, picker) => {
+          /* Ensure that name resolution is requested again after active
+           * connections are dropped. This is more aggressive than necessary to
+           * accomplish that, so we are counting on resolvers to have
+           * reasonable rate limits. */
+          if (this.currentState === ConnectivityState.READY && connectivityState !== ConnectivityState.READY) {
+            this.channelControlHelper.requestReresolution();
+          }
           this.calculateAndUpdateState();
         },
       }