From 176f5e137706dcdc51a9f206b8bd710a03a7307b Mon Sep 17 00:00:00 2001
From: softsimon <softsimon@protonmail.com>
Date: Fri, 16 Jun 2023 20:42:31 +0200
Subject: [PATCH] Reinstate the mempool loop time limit

---
 backend/src/api/mempool.ts | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/backend/src/api/mempool.ts b/backend/src/api/mempool.ts
index e3543f4fc..70635237f 100644
--- a/backend/src/api/mempool.ts
+++ b/backend/src/api/mempool.ts
@@ -186,6 +186,12 @@ class Mempool {
         loadingIndicators.setProgress('mempool', progress);
         loggerTimer = new Date().getTime() / 1000;
       }
+      // Break and restart mempool loop if we spend too much time processing
+      // new transactions that may lead to falling behind on block height
+      if (this.inSync && (new Date().getTime()) - start > 10_000) {
+        logger.debug('Breaking mempool loop because the 10s time limit exceeded.');
+        break;
+      }
     }
 
     // Reset esplora 404 counter and log a warning if needed