panic: Concurrency must be greater than 0 (docker)

[huseyinkogo]

• Tried to install it to a new system via docker compose
• past 2 months there wasn't a problem
• new system : alpine-docker lxc proxmox
• docker-compose.yml

services:
  google-maps-scraper:
    container_name: maps-scraper
    command: '-data-folder /gmapsdata'
    image: gosom/google-maps-scraper
    ports:
      - '5907:8080'
    volumes:
      #- './gmaps-data:/gmapsdata'
      - '/root/google-maps:/gmapsdata'
    restart: unless-stopped
    environment:
      - TZ=Australia/Sydney

• the error

╔══════════════════════════════════════════════════════════════════════════════╗
║ 🌍 Google Maps Scraper                                                       ║
║ ⭐ If you find this project useful, please star it on GitHub: https://github ║
║ .com/gosom/google-maps-scraper                                               ║
║ 💖 Consider sponsoring to support development: https://github.com/sponsors/g ║
║ osom                                                                         ║
╚══════════════════════════════════════════════════════════════════════════════╝

panic: Concurrency must be greater than 0

goroutine 1 [running]:
github.com/gosom/google-maps-scraper/runner.ParseConfig()
	/app/runner/runner.go:154 +0xea5
main.main()
	/app/main.go:35 +0x125
╔══════════════════════════════════════════════════════════════════════════════╗
║ 🌍 Google Maps Scraper                                                       ║
║ ⭐ If you find this project useful, please star it on GitHub: https://github ║
║ .com/gosom/google-maps-scraper                                               ║
║ 💖 Consider sponsoring to support development: https://github.com/sponsors/g ║
║ osom                                                                         ║
╚══════════════════════════════════════════════════════════════════════════════╝

panic: Concurrency must be greater than 0

goroutine 1 [running]:
github.com/gosom/google-maps-scraper/runner.ParseConfig()
	/app/runner/runner.go:154 +0xea5
main.main()
	/app/main.go:35 +0x125
╔══════════════════════════════════════════════════════════════════════════════╗
║ 🌍 Google Maps Scraper                                                       ║
║ ⭐ If you find this project useful, please star it on GitHub: https://github ║
║ .com/gosom/google-maps-scraper                                               ║
║ 💖 Consider sponsoring to support development: https://github.com/sponsors/g ║
║ osom                                                                         ║
╚══════════════════════════════════════════════════════════════════════════════╝

panic: Concurrency must be greater than 0

goroutine 1 [running]:
github.com/gosom/google-maps-scraper/runner.ParseConfig()
	/app/runner/runner.go:154 +0xea5
main.main()
	/app/main.go:35 +0x125

[gosom]

the concurrency by default is NumCPU/2. It looks like that in that system the NumCPU return 0.

I just released a new version 1.7.10 that uses go 1.24 and sets the concurrency to 1 if not specified or computed.

I recommed you get this version and also start the program using the -c argument and set it to your desired concurrency.

[huseyinkogo]

thanks, @gosom

i tried with new udpdate with the -c argument, getting this on logs flag needs an argument: -c

╔══════════════════════════════════════════════════════════════════════════════╗
║ 🌍 Google Maps Scraper                                                       ║
║ ⭐ If you find this project useful, please star it on GitHub: https://github ║
║ .com/gosom/google-maps-scraper                                               ║
║ 💖 Consider sponsoring to support development: https://github.com/sponsors/g ║
║ osom                                                                         ║
╚══════════════════════════════════════════════════════════════════════════════╝

flag needs an argument: -c
Usage of google-maps-scraper:
  -addr string
    	address to listen on for web server (default ":8080")
  -aws-access-key string
    	AWS access key
  -aws-lambda
    	run as AWS Lambda function
  -aws-lambda-chunk-size int
    	AWS Lambda chunk size (default 100)
  -aws-lambda-invoker
    	run as AWS Lambda invoker
  -aws-region string
    	AWS region

[gosom]

@huseyinkogo you need to add the number of CPUS.

so something like

-c 4

Have you used the flag properly?

Additionally, I don't see any reason that this won't work without this command line argument at all.