11 days ago
On Vercel
Every deployment is a new immutable version.
Your current live version stays running until the new one is built & verified.
If the new build fails → Vercel just never “promotes” it to production.
Result: No downtime, old deployment continues serving traffic.
On Railway
Railway is more like “run this Docker/container forever”:
You usually have one running instance of your service.
When you deploy:
It rebuilds & restarts that same service.
If the new build / start command fails → the service crashes.
Since there is no previous instance kept alive, your API goes down.
Need vercel deployment method please help me to build in railway for zero down time.
4 Replies
11 days ago
Hey there! We've found the following might help you get unblocked faster:
If you find the answer from one of these, please let us know by solving the thread!
11 days ago
Hello,
As long as you use a health check we will wait until the new deployment passes the health check before switching over for a true zero downtime deployment.
Status changed to Awaiting User Response Railway • 11 days ago
10 days ago
i have to put my api link in healthcheck
Status changed to Awaiting Railway Response Railway • 10 days ago
10 days ago
Please help me to configure the health-check for my project.