From 83789c15dbe9de3bc9069bc0d7c63f13d71f5b6e Mon Sep 17 00:00:00 2001
From: Michael Lumish <mlumish@google.com>
Date: Thu, 31 Aug 2023 09:30:26 -0700
Subject: [PATCH] grpc-js: Handle keepalive ping error

---
 packages/grpc-js/src/transport.ts | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/packages/grpc-js/src/transport.ts b/packages/grpc-js/src/transport.ts
index 18d83cbfe..49ec01ddc 100644
--- a/packages/grpc-js/src/transport.ts
+++ b/packages/grpc-js/src/transport.ts
@@ -426,6 +426,10 @@ class Http2Transport implements Transport {
     try {
       this.session!.ping(
         (err: Error | null, duration: number, payload: Buffer) => {
+          if (err) {
+            this.keepaliveTrace('Ping failed with error ' + err.message);
+            this.handleDisconnect();
+          }
           this.keepaliveTrace('Received ping response');
           this.clearKeepaliveTimeout();
           this.maybeStartKeepalivePingTimer();