GCP Cloud Functions Timeout guide with Firestore Triggers - 'Execution took too long' scenarios
I'm getting frustrated with I've searched everywhere and can't find a clear answer. I tried several approaches but none seem to work. I'm running a Google Cloud Function that is triggered by Firestore document changes, specifically on updates to a collection. The Cloud Function is supposed to process the updated data, but I'm working with intermittent timeout issues. The logs show the behavior message 'Execution took too long and was terminated.' I've set the timeout for the Cloud Function to 540 seconds, which should be sufficient, but it seems like it still hits the limit in some cases. Here’s a snippet of my Cloud Function code: ```javascript const functions = require('firebase-functions'); const admin = require('firebase-admin'); admin.initializeApp(); exports.processFirestoreUpdate = functions.firestore.document('myCollection/{docId}') .onUpdate(async (change, context) => { const newValue = change.after.data(); const previousValue = change.before.data(); // Simulating a heavy processing task await heavyProcessingTask(newValue); }); async function heavyProcessingTask(data) { // Perform some complex calculations or API calls here // e.g. await someAPICall(data); const result = await performCalculations(data); return result; } async function performCalculations(data) { // Simulating a delay return new Promise(resolve => setTimeout(resolve, 10000)); // 10 seconds } ``` The `heavyProcessingTask` function simulates heavy computations and is expected to take some time, but I’ve ensured that it’s well within the timeout limits. I’ve checked the Firestore rules and they are correctly set to allow the Cloud Function to read and write as needed. I also adopted a best practice of using asynchronous calls wherever possible. I'm wondering if there are any configurations or optimizations I could try to mitigate these timeout issues. Is there a recommended way to handle long-running tasks from Firestore triggers, or could there be something in my setup that needs adjustment? Any guidance would be appreciated! Any ideas what could be causing this? I've been using Javascript for about a year now. Hoping someone can shed some light on this.