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Questions tagged [cold-start]

In general, a cold start is the start-up of a recently unused ("cold") application, typically incurring an above average start-up time. In contrast, a recently used application is considered "warm."

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Retrofit2 deserialization / conversion on non-main thread using rxjava

I've referred to this answer already and it seems to be related to Retrofit v1. Goal -> To reduce cold start time by making ObjectMapper work on non-main thread. This image shows a stack trace of it happening on the main thread. Setup: compile…
gaara87
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Android application takes too much time to start?

I'm finished with android app. Used firebase, admob. Has 31 activities. But when user installs the app for first time, the launch time is approximately 18 seconds which is too high. After first time launching, signup activity is there. But if we…
coolamz
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Recommender approach and algorithms for cold-start

We are looking at building recommender system for our brand-new Learning Management System. There are a bunch of users and items (learning modules) onboarded, but no ratings yet - typical cold start problem. To begin with, we are thinking of using a…
gammay
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New Relic's pings not improving cold start

There's a similar question about app harbor on StackOverflow, but the user didn't try to use new relic to overcome the problem. I deployed my ASP.NET MVC project on App Harbor. It's very easy to configure and you can even set automatic deployments…
Luis Gouveia
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New system cold start: Recommender systems

I have built a recommender systems which has tens of thousands of items and their feature descriptions, but no user profiles as of now. I am looking for pointers to approaches that can help me bootstrap the system, so I can do some evaluation. I…
Nimonika
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deploy express.js app on vercel with mongoDB (just for backend)

I made a traditional express app for bank-end. I made some couples of api route for front-end. And there is some logic about connecting DB, getting data...etc. I didn't use serverless function but the first request is very slow. Is it related to…
h0lyM0ly1
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Will cold start effect my azure function if it only captures the webhook, gets a value from dictionary and passes it to a topic

I have a azure function(HTTP trigger) which is triggered when a webhook event is received. The azure function is only responsible for returning a value from dictionary based on a header value of the request and pushing it to a topic. I receive…
Arya Andrews
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Show App Open Ads only on'cold start ' - openigng app from device home screen app icon

I have an app with Splash Screen and App Open Ads. Currently App Open Ads are showing three ways, when user - 1st one: opening app clicking app icon - Like this: App icon click > splash screen > showing App Open Ads (splash screen is behind) > close…
user3137451
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Despite implementing preferRest option, my Firebase Admin cold start latency still lingers, what could be the reason?

Getting Cold start latency of 5+ seconds even after using the preferRest option for firebase-admin I was getting a cold start latency of 5+ seconds while using firestore database. I came across this age old issue-…
HKST
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AWS personalize limit on number of items considered when training

Amazon personalize puts a limit of 750,000 on the number of items considered by models during the training process. I have roughly 2 million items (videos) with no interaction but I want to somehow show these items to users. The first approach I…
milad heidari
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Cloud Function Cold Start delays sending push notifications

I have a strange problem with an HTTPS Cloud Function that based on specific rules send push notifications to client. In particular, when the Cloud Function starts for the first time, notifications are sent with a delay. On the contrary, after Cold…
Lorenzo B
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Cloud Run Don't Wait For Scale Up

I have a web application. The cold start time of the backend service is about 10 second which is very high. I was not able to reduce the cold start time. As a second solution, I am wondering if can requests that makes cloud run service scale up…
Burak Berk
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Cloud run cold start spring boot issue

I have login API developed in spring boot and deployed on cloud run with min instance 1. But for some request it is taking 20s to process which is not desirable. When I checked logs, I found that application is starting again and it is taking time…
Ravi Mishra
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CloudRun cold start issue and 429 Rate exceeded error

We have a nodejs monorepo project with >179 packages where each package may have >30 files. It also contains proxy with routing and several forked processes (as usual). So, when we packed all of this stuff into Docker image and moved it into…
Anton Komarov
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Is there a Lambda-Warmer package for dotnet?

I want to keep my AWS Lambda instances warm (even after the default warm time of 5 minutes). I saw good packages like this but unable to find any good examples using dotnet. Could you suggest a Lambda-Warmer package for dotnet which could do the…
MAK
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