Railway•11mo ago

Error: getaddrinfo ENOTFOUND postgres.railway.internal

I'm trying to connect a node app to a postgresql database (both are in the same railway project) through the private network so I'm using the DATABASE_PRIVATE_URL in my node app, but then I get this error in the logs Error: getaddrinfo ENOTFOUND postgres.railway.internal. Before I was connecting my node app to my postgresql database through the public url (so using DATABASE_URL env variable) and all was going fine, but then I realized the higher costs this public connection implies (rookie mistake) so I changed it to the private network however now I have this issue.

Solution:

then have a look at this docs section https://docs.railway.app/guides/private-networking#workaround-for-alpine-based-images the 3 second sleep is still needed though...

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26 Replies

Percy•11mo ago

Project ID: 93ff8b35-df80-4f04-9f54-b6e4fa647fbf

Ghost OrderOP•11mo ago

93ff8b35-df80-4f04-9f54-b6e4fa647fbf

Brody•11mo ago

add a 3 second sleep to the beginning of your start script

Ghost OrderOP•11mo ago

gotcha, let me try it still is giving the same error

Brody•11mo ago

can you show me how you have implemented the suggested change?

Ghost OrderOP•11mo ago

sure, I just added "sleep 4 && <the rest of the start script>" the start script indeed is delayed by 4 secs

Brody•11mo ago

can you show me a screenshot of your railway project

Ghost OrderOP•11mo ago

you mean the project page? where all the services are

Brody•11mo ago

are you deploying this with nixpacks or a dockerfile?

Medim•11mo ago

Are you using Payload CMS?

Ghost OrderOP•11mo ago

dockerfile yes

Brody•11mo ago

does your dockerfile use an alpine based image?

Ghost OrderOP•11mo ago

yep node:18.8-alpine

Solution

Brody•11mo ago

then have a look at this docs section https://docs.railway.app/guides/private-networking#workaround-for-alpine-based-images the 3 second sleep is still needed though

Ghost OrderOP•11mo ago

ok Ill check it thank you @Brody I added the ENABLE_ALPINE_PRIVATE_NETWORKING=true metioned in the docs and now my app is working fine

Brody•11mo ago

awsome

Alex / KATT 🐱•8mo ago

this is an issue for me after seemingly trying everything here - added a 10s timeout before start on my service - added ENABLE_ALPINE_PRIVATE_NETWORKING=true in the service using it + redis schema:

{
  "$schema": "https://railway.app/railway.schema.json",
  "build": {
    "builder": "NIXPACKS",
    "buildCommand": "echo \"no-build\""
  },
  "deploy": {
    "numReplicas": 1,
    "startCommand": "sleep 10 && cd apps/xxxx && pnpm tsx server",
    "healthcheckPath": "/",
    "sleepApplication": true,
    "restartPolicyType": "ON_FAILURE",
    "restartPolicyMaxRetries": 10
  }
}

{
  "$schema": "https://railway.app/railway.schema.json",
  "build": {
    "builder": "NIXPACKS",
    "buildCommand": "echo \"no-build\""
  },
  "deploy": {
    "numReplicas": 1,
    "startCommand": "sleep 10 && cd apps/xxxx && pnpm tsx server",
    "healthcheckPath": "/",
    "sleepApplication": true,
    "restartPolicyType": "ON_FAILURE",
    "restartPolicyMaxRetries": 10
  }
}

Alex / KATT 🐱•8mo ago

Error: getaddrinfo ENOTFOUND xxx-redis.railway.internal

Error: getaddrinfo ENOTFOUND xxx-redis.railway.internal

i might add that it adds if i use the public url of redis instead

Alex / KATT 🐱•8mo ago

and that it's referenced throguh a variable, i haven't hard-coded it

Brody•8mo ago

ioredis?

Alex / KATT 🐱•8mo ago

yup

Brody•8mo ago

please read the docs page for that - https://docs.railway.app/guides/private-networking#known-configuration-requirements-for-ipv6 you aren't using alpine, so I'm not sure why you set that variable, and I'm really not sure why you set it on the redis service

Alex / KATT 🐱•8mo ago

A web application that makes client-side requests cannot communicate to another service over the private network.

are you saying that because my app is public, it can't connect to redis over the public network?

Brody•8mo ago

bro click the little button that says ioredis

Alex / KATT 🐱•8mo ago

oops, i am a moron thank you so much, setting my REDIS_URL to the below does indeed work

${{redis.REDIS_PRIVATE_URL}}?family=0`

${{redis.REDIS_PRIVATE_URL}}?family=0`

apologies for not being able to RTFM, i was blind

Brody•8mo ago

no worries

Gaming

Programming

Error: getaddrinfo ENOTFOUND postgres.railway.internal