Monitor memory usage in your OCaml application

A common problem that we often face with OCaml applications is memory leaks and the overall memory usage of our application. This is a significant problem when building applications that we end up deploying to the cloud either as a serverless function, container, or virtual machine. In such cases, memory usage can become a significant problem by slowing down our application, causing it to crash entirely, or increasing costs.

Therefore, monitoring our OCaml application's memory usage and setting up a system to track when use goes above a certain threshold is essential. This way, we can always be aware of the performance of our application. In cases of a performance issue, for example, when the memory usage goes above a certain threshold, say 80 percent, we can take immediate action and fix the problem before it becomes a significant issue.

To do so, we have created LogSnag, a powerful event tracking tool that works seamlessly with OCaml and allows us to track any event in our application in real-time. For example, with LogSnag, we can track our memory usage in real-time and set up a rule to notify our team and us when the memory usage goes above a certain threshold via push notifications. This way, we will always be aware of the performance of our application, and we can take immediate action if needed.

Setting up LogSnag

1. Sign up for a free LogSnag account.
2. Create your first project from the dashboard.
3. Head to settings and copy your API token.

OCaml code snippets

You can use the following code snippets to track memory usage in your OCaml application. Please don't forget to replace the YOUR_API_TOKEN with your API token and update the project and channel names.

open Lwt
open Cohttp
open Cohttp_lwt_unix

let postData = ref "{\"project\":\"my-saas\",\"channel\":\"status\",\"event\":\"High Memory Usage\",\"description\":\"Memory usage has exceeded the threshold.\",\"icon\":\"🚨\",\"notify\":true}";;

let reqBody = 
  let uri = Uri.of_string "https://api.logsnag.com/v1/log" in
  let headers = Header.init ()
    |> fun h -> Header.add h "Content-Type" "application/json"
    |> fun h -> Header.add h "Authorization" "Bearer YOUR_API_TOKEN"
  in
  let body = Cohttp_lwt.Body.of_string !postData in

  Client.call ~headers ~body `POST uri >>= fun (_resp, body) ->
  body |> Cohttp_lwt.Body.to_string >|= fun body -> body

let () =
  let respBody = Lwt_main.run reqBody in
  print_endline (respBody)

OCaml integration details

LogSnag is a powerful and flexible event tracking tool that works surprisingly well with OCaml applications. It provides powerful features such as real-time event tracking, cross-platform push notifications, user and product journeys, charts and analytics, and more.

Connect LogSnag to your OCaml application in minutes and start tracking events in real-time. LogSnag provides a generous free plan to get you started with event tracking. You can also check out our pricing page to see our paid plans. So please give us a try and let us know what you think!

Other use-cases for LogSnag

1. Monitor your CI/CD build status for your OCaml application
2. Monitor your CPU usage in your OCaml application
3. Monitor when database goes down in your OCaml application
4. Monitor high disk usage in your OCaml application
5. Monitor when a user changes their email address in your OCaml application
6. Monitor failed logins in your OCaml application
7. Monitor failed payments for your OCaml application
8. Monitor MySQL downtime in your OCaml application
9. Monitor when a new feature is used in your OCaml application
10. Monitor your Postgres downtime in your OCaml application
11. Monitor Redis downtime in your OCaml application
12. Monitor suspicious activity in your OCaml application
13. Monitor when a user exceeds the usage limit for your OCaml service
14. Monitor when a user is being rate limited in your OCaml application
15. Get a notification when your OCaml code is done executing
16. Send push notifications to your phone or desktop using OCaml
17. Track canceled subscriptions in your OCaml application
18. Track your OCaml cron jobs
19. Track when a file is uploaded to your OCaml application
20. Track when a form is submitted to your OCaml application
21. Track payment events via OCaml
22. Track user sign in events in OCaml
23. Track user signup events via OCaml
24. Track waitlist signup events via OCaml