From e6c559f19994d8bbea1711bb73ccbe689195ad38 Mon Sep 17 00:00:00 2001
From: Nico Flaig <nflaig@protonmail.com>
Date: Sat, 29 Jun 2024 18:17:02 +0100
Subject: [PATCH] fix: do not report negative sync time and slots/s (#6918)

---
 packages/beacon-node/src/node/notifier.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/packages/beacon-node/src/node/notifier.ts b/packages/beacon-node/src/node/notifier.ts
index 8c393a4fcb05..19bc36d48dc2 100644
--- a/packages/beacon-node/src/node/notifier.ts
+++ b/packages/beacon-node/src/node/notifier.ts
@@ -92,7 +92,7 @@ export async function runNodeNotifier(modules: NodeNotifierModules): Promise<voi
       switch (sync.state) {
         case SyncState.SyncingFinalized:
         case SyncState.SyncingHead: {
-          const slotsPerSecond = headSlotTimeSeries.computeLinearSpeed();
+          const slotsPerSecond = Math.max(headSlotTimeSeries.computeLinearSpeed(), 0);
           const distance = Math.max(clockSlot - headSlot, 0);
           const secondsLeft = distance / slotsPerSecond;
           const timeLeft = isFinite(secondsLeft) ? prettyTimeDiffSec(secondsLeft) : "?";