From 6ff06a9f7e01820e6b89344e9e48e9ec0e3254fa Mon Sep 17 00:00:00 2001
From: Ermal Kaleci <ermalkaleci@gmail.com>
Date: Fri, 24 Nov 2023 11:33:14 +0100
Subject: [PATCH] drop subscription on error

---
 src/middlewares/subscriptions/merge_subscription.rs | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/src/middlewares/subscriptions/merge_subscription.rs b/src/middlewares/subscriptions/merge_subscription.rs
index 5b438b0..5fb29fe 100644
--- a/src/middlewares/subscriptions/merge_subscription.rs
+++ b/src/middlewares/subscriptions/merge_subscription.rs
@@ -268,9 +268,9 @@ impl Middleware<SubscriptionRequest, Result<(), StringError>> for MergeSubscript
                                     }
                                 }
                                 Err(e) => {
-                                    // this should never happen
-                                    tracing::error!("subscription stream error {e:?}");
-                                    unreachable!("subscription stream error {e:?}");
+                                    // remote upstream subscription failed, drop subscription
+                                    tracing::trace!("subscription stream error {e}");
+                                    break;
                                 }
                             }
                         }