From 20bc193da03b345b23d9aae01a584de3e598eb92 Mon Sep 17 00:00:00 2001
From: Nico Flaig <nflaig@protonmail.com>
Date: Thu, 28 Mar 2024 03:37:32 +0000
Subject: [PATCH] fix: reject promise on file stream error when writing heap
 snapshot (#6603)

---
 packages/beacon-node/src/util/profile.ts | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/packages/beacon-node/src/util/profile.ts b/packages/beacon-node/src/util/profile.ts
index 9c130d7a1eb..7085c329c82 100644
--- a/packages/beacon-node/src/util/profile.ts
+++ b/packages/beacon-node/src/util/profile.ts
@@ -41,7 +41,11 @@ export async function writeHeapSnapshot(prefix: string, dirpath: string): Promis
   const snapshotStream = v8.getHeapSnapshot();
   const filepath = `${dirpath}/${prefix}_${new Date().toISOString()}.heapsnapshot`;
   const fileStream = fs.createWriteStream(filepath);
-  return new Promise<string>((resolve) => {
+  return new Promise<string>((resolve, reject) => {
+    fileStream.on("error", (err) => {
+      reject(err);
+    });
+
     snapshotStream.pipe(fileStream);
     snapshotStream.on("end", () => {
       resolve(filepath);