grpc-js: round_robin: Request resolution on connection drop

grpc · Sep 12, 2024 · b3c24d0 · b3c24d0
1 parent 0c5ab98
commit b3c24d0
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Showing 2 changed files with 8 additions and 1 deletion.
diff --git 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
@@ -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();
         },
       }