c624836d-84ca-49b8-a0ed-13931b8393c6

Have you checked your volume capacity wherever you are storing these files?

You can find your volumes attached to your services on your project page.

@Adam I had no idea I was storing these files. I'm very new to this and not sure where to look or what to configure even though you seem to have pointed me to the attached screen. As you can see Postgres is crashing on redeploy so somethng is not right. Your advice would appreciated.

Please open the service and click the latest deployment. Send the deployment logs here by clicking CMD/CTRL+K and downloading them, then sending the file here.

Logs attached. I found this screen with disk usage and it's been going up so I expect something has got full. The n8n instance seems to use Postgres so I'm not sure if the build up is in Postgres or elsewhere, or how to delete/prune it. Your advice again would be appreciated,

1361842402939371550

These don't look like the metrics specifically for the postgres service, can you please send those? You can find them in the same service menu as the deployment logs were pulled from.

It seems like the postgres service is full. You can SSH into the service using the Railway CLI to clear out some temporary files if that is the issue

But I'd like to first see the postgres metrics so we can identify exactly what is getting full

they just need to grow it

its 500mb as of writing this

Yep that's what I assumed

Ah my bad, I missed that this graph stopped at 500mb. Numbers too small

I pressed CRL+K on this screen which seems to be the Postgres service. Here they are again.

1361847901109616741

Like Brody said, all you'll need to do is grow your volume, follow the docs here to do so
https://docs.railway.com/guides/volumes

I'm happy to grow it once the project is in production, but how do I prune/delete what's there at the moment, and get back in?

Is there a reason you don't want to grow it now?

Yes, the project is in development and I want to test what grows the data and by how much. So pruning/deleting to 'zero' would give a foundation to test from.

Wiping the volume now may have unintended consequences, but you're welcome to do so. You can wipe it by clicking on the volume underneath your postgres service, clicking settings from the new menu, and navigating down to Wipe Volume

I don't want to do a general wipe. I think it's just the Google Drive binary downloads that are being stored and accumlating the most in n8n, but I don't know how to specifically delete those.

At this point, it would be better for you to grow the volume so you can properly access the database and delete those files manually.

Growing the volume just increases the disk space available. Currently you're stuck at 500mb as you created the volume when you were on the trial plan. Now that you're on the hobby plan, you have access to up to 5gb

OK - I may try that but a quick question… If I delete the project, will all the related data be deleted so I can start afresh with 0Mb?

The reason I ask is that I have all the required workflows backed up and can just create a fresh project with a new install of n8n and just import the projects and re-enter some credentials. Then I can re-consider creating a regular process for pruning/deleting n8n stored data.

Yes. Deleting the project will delete the contents of all volumes, as well as any configuration you have set

Thanks. I grew the volume to 1Gb and I got access.

As I use n8n with the Google Drive download node the usage is increasing so I added n8n pruning variables in it's service and set it to 12 hours (See screen capture), but the usage isn't going down. Any suggestions on this?

I was going to try to manually delete data in Postgres using the database UI, but it's asking for Required Variables (see screen capture). Where do I get the values for these to enter?

The database UI is notoriously glitchy. You'll be better off using a proper database client like DBGate

As for n8n specific support, I can't provide that. You'll have to look online for answers there

Thanks Adam. I'll ask about n8n in their community forum.

Re: DBGate, where do I get the host, username, password, port of the Postgres service in Railway, and any other details for the config requirements in DBGate or any other Postgres access app?

Those can all be found in the service variables. In DBGate there should be an option to use a URL to connect, you can use your database's public URL to connect

That's what I thought before I asked, but there isn't a PUBLIC URL variable and the top 2 don't have a URL as such in their values (see attached).

DATABASE_URL is the public url

The DATABASE_URL is this:
postgres://railway:PASSWORD@:/railway

and the DATABASEPRIVATEURL is this:
postgres://railway:PASSWORD@postgres.railway.internal:5432/railway

The only string that looks like a URL is postgres.railway.internal
I tried that with username railway (because that's what it is in the variables), the correct pasword and port 5432, without and without database name railway (again that's what the variable is), and in DBGate it displays this alert:
Connect failed: getaddrinfo ENOTFOUND postgres.railway.internal

postgres.railway.internal is the INTERNAL url, it will fail outside your service private network

That's what I thought and there is no public URL in the variables.

DATABASE_URL is the public one

That has this (as above):
postgres://railway:PASSWORD@:/railway

Where is the public URL in that?

You are omitting some extra info in that URL, there should be a host at the end of it
postgresql://postgres:PASSWORDHERE@roundhouse.proxy.rlwy.net:58350/railway

In this case it is [roundhouse.proxy.rlwy.net](roundhouse.proxy.rlwy.net)

But that changes

That's not there - I just copied the variable next to the variable name.

Is that DB empty? If so, delete it and deploy a new one.

The whole string is this:
postgres://railway:PASSWORD@:/railway

apart from PASSWORD being the actual password

the database that deploys with n8n does not come with a tcp proxy, they need to add one, and redeploy the database

The volume size is going up. see attached. So can't be empty.

Thanks - but how do I do that? I'm new to this so please give me the steps.

you are in good hands with the community members

im just here to provide some context to them is all

Didn't know that

learn something new every day

Go to the service settings -> Scroll until you see "Public Networking", there should be a button with the label "+ TCP Proxy"

The port should be your DB Port (default is 5432)

and after that you should redeploy your database

OK - I did that and it added an entry like this:

abcde.proxy.rlwy.net:12345 -> :5432

where abcde and 12345 are something else and the -> is a single arrow.

So, is abcde.proxy.rlwy.net now the public url?

And what is 12345

12345 is the proxied port

Did u redeploy the service? what does your DATABASE_URL looks like now?

Just redployed and the DATABASE_URL has changed now and has a URL. Do I use 5432 or the new 12345 for the port when connecting to the DB?

12345

Can't you just copy the entire DATABASE_URL and paste it on DBGate?

instead of separating each value

there should be a "Use Database URL" button or switch

That connected. Thank you.

amazing!

Now have to have some food and then work out why the n8n data isn't being pruned/deleted.

I'm gonna mark this thread as solved! Open a new one if you find any other issue

!s

Thanks for the backup Medim!