Hello,

I noticed your deployment state is COMPLETED This means your application has exited.

This is an issue with your application, Railway and the Metal infrastructure would not cause your application to exit, that would be purely an application-level issue.

Best,
Brody

How come , when the region was non metal it worked , other non railway environments also work , only when raiway started to migrate to metal region , the application is causing issue with 504?

How come that is an application issue

I previously raised concerns ealrlier as well 1 month back , that time also metal region was causing issue, when I changed manually to non metal region , it wrked, now non metal option is completely removed from ur system ,

SO we need solution from ur end asap

Problem is I am facing 504 for many apis , that means timeout is happening

Hello,

There is no scenario where we would return a 504 status code on your behalf, that would be something your application is returning, and thus outside of the scope of what we can help with.

Best,
Brody

You give us non metal region , that is fine for us
That works fine for us

I'm sorry but we cannot accommodate that request, we are well underway of migrating all workloads off of non-Metal, and we must press forward on that front given that this is not an issue with Metal.

See my previos tickets, where I have already raised concern 1 month back , that was also same issue,

where u were doing auto deployment to metal , and it stated slowdown
That time , i used to manually turn to non metal and application used to work without slowness

Now u cmpletely removed that option

SO this means its a issue with metal only which u have to debug with ur development team?

Obviously , if application works in other environments , its not an application issue

Is your service communicating to other services in other projects?

yes

You need to have all related services within the same project and then you need to use the private network.

Again, this is an issue with your application, specifically how you have setup your application on Railway.

SO , MY frontend rilway communicates to backend railway

Backed railway communicates to db railway

from the point of backend railway to railway db , I am using public network , since 3 years

If this url is issue,my backend applicaton is thriwoing errors when I use pricate url in my code ase for railway

So is there a ny documentation hwo to use private url in backen project to communicate to db for railway

You first need to move the database into the same project.

So all are in one same project, 4 services in one project already

Unfortunately, that is not true, you only have backend in the project.

gray-weather
trustworthy nature
long smell
loving endurance

All 4 part of a single project

Those are all individual projects themselves.

Please see our basics doc to read up on the terminology -

https://docs.railway.com/overview/the-basics

So , in railway , every project has different build process

Like java project , it require s maven

Frontend , it requires node

DB , its a storage

Railway doesnt provide option to have all 3 as a single entity

If so , pls provide how to have 3 different techstackas a single project in railway

Can u also pls xplain how it was working in non metal region?

I think you are mixing up your terminology, Please review our docs -

https://docs.railway.com/overview/the-basics

https://docs.railway.com/overview/best-practices

Can u also pls xplain how it was working in non metal region?

Can u explain this?

I am unable to understand if application worked in non metal , now if it doent work inmetal , how come its an application issue

3 years it worked without any issue

We are paid customers , so we expect some support from development team of railway when there are infrastructure issues and migrations at ur end which is causing issue

If not , what the use of paying for these services?

You are using the public network for connections when you need to use the private network going forward.

Existing database properties

spring.datasource.url=jdbc:mysql://root:sWXgNlVypErvuZYOtbigtadElIoTIhGj@junction.proxy.rlwy.net:33691/railway

spring.datasource.username=root

spring.datasource.password=******

What I changed to

spring.datasource.url=jdbc:mysql://mysql.railway.internal:3306/railway

spring.datasource.username=root

spring.datasource.password=******

But I am getting connection refused issue

This I am putting in backend code

what shuld be exact config for private url?

Let's take this one step at a time.

You need to have the database and all other accompanying services in the same project, you currently do not.

Please let me know when you have done that.

SO lets say I want a sngl project

What option should I select while creating that project

Railway asks me to select github repo

And project has 1 backend repo which is independent, one frontend repo which is independent

also one db storage which is independent

So repos itslef are independent , and architecture cant be combined

In that case, how to craete a project in railway , combining 3 repo into a single one

At a time , whatver service gets created gets mapped to one single github repo, and I have 3 repos

Please read:

• https://docs.railway.com/guides/projects

• https://docs.railway.com/guides/services

• https://docs.railway.com/guides/private-networking

We are paid customers , so we expect some support from development team of railway when there are infrastructure issues and migrations at ur end which is causing issue

You're on the Hobby plan, which does not include support from Railway. You're eligible for community support only.

All of your questions can be answered by reading through our documentation, which I encourage you to do

So now all services are in 1 project , and also private urls used

Now check what is causing the issue of 504 Gateway Timeout

That's an error from your application, not the platform. We cannot help you with application errors.

I mean how come u people give so funny answers

How come the same application works in other enviornments apart from railway?

Also how did application work for 3 years in non metal

These are questions still unanswered

How come a applivation give timeout error

The status code itslef mentions its a gateway timeout

Had it been application error, status code would be 500 internal server error, 401 unauthorized, 400 bad request etc

If u see my previous thread , I already raised similar concern 1 month back where I faced same issue with metal , the momemnt I switched to non metal it worked fine

That time also , u guys werent able to figur out the issue

Can you share the URL that you're getting a 504 from?

yes

https://knorr-bremse-trainingfrontend-prod.up.railway.app/login

Here
after entering the valid application credentials we are getting unauthorized

So that's a 401, right? Where do you see 504 Gateway Timeout?

I mean gateway timeout 504, not unauthoized*

Unauthorized I mean I am not able to enter inside the application because of 504 gateway timeout

Not 401 unathourized

I believe metal is not allowing processing large chunk of data

That's why apis where we have some considerable amount of data in db is giving timeouts

And apis where there is less data in db it works

Which never happened with non metal

The data was also exactly same

Hello,

Looks like you have your services in the same project, has performance improved?

Best,
Brody

No it's still same as before

No improvement in performance and getting 504 gateway timeout

this.attemptsCache = CacheBuilder.newBuilder()

.expireAfterWrite(1, TimeUnit.DAYS) // 1

.build(new CacheLoader<String, Integer>() { // 2

public Integer load(String key) { // 3

return 0;

}

});

After debugging , it looks metal region is not allowing to build an in-memory cache and getting timeout

In non metal it worked

Debug with ur development team , why latest metal inforstructure not allowing building inmemory cache

This is part of Google Guava's caching library

We have no limitations on in memory cache stores, nor would it even be technically possible for us to put limits on such a thing, additionally, we would see mass widespread reports if such issues existed.

Your issue is assuredly elsewhere.

Are you using the private network for all service to service communications?

I am using privare network

I commented above code and application worked without timeout issue

But commenting above code is not a proper solution , wants railway to review why caching is not working properly n railway metal infrastructure

There are no issues on our side in regards to an in-memory cache.

We are going to step away from this thread and let the community involve themselves if they want since we cannot offer application-level support from the team here.

Best,
Brody