My server side app is not responding.. How do I check my usage?

Questions / Help
1

The app is not responding from the Postman. It seems like my hobby plan usage has exceeded the limit. I’m not 100% sure whether this is true or not. Is it possible to check the usage from the dashboard? I can’t find it…

2

Hi @jeffminsungkim

I’ve checked and it doesn’t seem to be that.

My suggestion would be to check logs with fly logs -a appnamehere and see if there’s anything interesting.

Another possibility is that your app only has an IPv6 and your postman isn’t able to reach it, try running fly ips list -a appnamehere to see the list of your IP addresses.

3

Thanks for the response @lubien

Actually I’m using a custom domain atm. and the log tells me like below.

ms
2023-01-02T12:54:32Z app[3bbc4930] nrt [info][Nest] 520  - 01/02/2023, 12:54:32 PM     LOG [NestApplication] Nest application successfully started +21ms
2023-01-02T12:54:32Z app[3bbc4930] nrt [info][Nest] 520  - 01/02/2023, 12:54:32 PM     LOG 🚀 Application is running on: http://localhost:8080
2023-01-02T12:54:59Z runner[7c60845e] nrt [info]Shutting down virtual machine
2023-01-02T12:55:00Z app[7c60845e] nrt [info]Sending signal SIGINT to main child process w/ PID 520
2023-01-02T12:55:00Z app[7c60845e] nrt [info]Starting clean up.

Nothing special. When I make a request, it took over a miunute all of a sudden and threw 502 BAD GATEWAY error.
I think the machine has stopped and wanted to find out my usage has reached the limit or not.

4

You can run fly status you can see if there’s any allocation running. It does seem it exited.

I can see your app was listening on port 8080, does your fly.toml uses internal_port 8080 too?

5

Hey @lubien
here’s the fly status result.

App
...

Deployment Status
  ID          = bab1ff0b-4a88-de9a-e9ec-e64b368d04e2         
  Version     = v30                                          
  Status      = successful                                   
  Description = Deployment completed successfully            
  Instances   = 1 desired, 1 placed, 1 healthy, 0 unhealthy  

Instances
ID      	PROCESS	VERSION	REGION	DESIRED	STATUS 	HEALTH CHECKS     	RESTARTS	CREATED    
3bbc4930	app    	30     	nrt   	run    	running	1 total, 1 passing	0       	37m35s ago

Yes, I’m using 8080 internal_port. The app was completely fine 30 mins ago. I don’t know why the app suddenly decided not to respond it back.

6

Does it work outside postman?

9

No it doesn’t…

11

@jeffminsungkim Your app probably only has an IPv6 which might be the reason you can’t connect to your own app.

I suggest you allocate an IPv4 with fly ips allocate-v4

12

@lubien I had ipv4.
But I did and reassigned the new address(v4)
still not working though.

VERSION	IP                 	TYPE  	REGION	CREATED AT           
v4     	37.16.20.248       	public	global	2m41s ago           	
v6     	2a09:8280:1::3:c062	public	global	2023-01-01T11:57:36Z
13

I’ve deleted the app. Now it’s working. This is so weird.

14

Sorry about a not so great first experience.

Your app might have gotten on a weird state, do let us know if this happens again.

15

Hey @jeffminsungkim ,

For some reason, when the app lost the previously allocated IP it could not be synchronized again.
The reason for the loss should be detected :thinking: