Monitor MySQL downtime in your OCaml application

MySQL is used commonly when building OCaml as it is a robust, relational database that makes it easy to go from zero to production in no time. In addition, it is a great database with many features, making it an excellent choice for small and large applications.

However, like any other database or software, MySQL is susceptible to issues and downtimes caused by various internal and external factors. For example, connectivity issues, hardware failures, misconfiguration, lack of resources, and many other reasons can cause our MySQL instance to go down and stop working as expected. Thankfully, many services these days take care of hosting and managing MySQL instances for us, making it easy to focus on building our applications. Yet, it is still crucial to monitor the status of our database and take immediate action when something needs to be fixed as expected.

Here at LogSnag, we have been working on that to make it easy for developers to monitor their products and take immediate action when something is not working as expected. LogSnag is a simple yet powerful event-tracking tool that allows us to log anything that happens in our applications, from user actions to database status and downtimes. It creates a single source of truth for all that occurs in the product and provides a number of features to make it easy to manage and monitor our events.

For example, in the case of using MySQL with OCaml, we usually set up periodic checks to ensure that our database is up and running and monitor its performance, disk, and memory usage. If we encounter any issues, such as increased disk usage, slow performance, or downtime, we log the event using LogSnag. It then notifies our team immediately and allows us to take immediate action.

In addition, LogSnag provides a powerful insights dashboard that allows us to monitor the status of our database, its performance, uptime, memory usage, and any other metric that we want to track, making it easy to monitor the health of our database.

Connect LogSnag to OCaml

Setting up LogSnag

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

OCaml code snippets

To track your MySQL downtime, you can use the following code snippet Please don't forget to replace the YOUR_API_TOKEN with your API token and update the project and channel names.

Using OCaml with Cohttp

open Lwt
open Cohttp
open Cohttp_lwt_unix

let postData = ref "{\"project\":\"my-saas\",\"channel\":\"status\",\"event\":\"MySQL is down\",\"description\":\"MySQL has been down for the last 5 minutes\",\"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 provides several powerful features, such as real-time event tracking, push notifications, charts, funnels, and user journey tracking. Furthermore, it works seamlessly with OCaml and is an excellent addition to your toolset.

We would love to hear about how you use LogSnag in your product, so please give it a try and let us know what you think!

Other use-cases for LogSnag

View all common use-cases with OCaml

Setting up LogSnag

OCaml code snippets

OCaml integration details

Other use-cases for LogSnag

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