[Solved] WARNING: MYSQL_OPT_RECONNECT is deprecated – Mysql

by
Alexei Petrov
homebrew libmysqlclient ruby-on-rails

Quick Fix: Remove reconnect: false from your database.yml file, as setting reconnect to false is now redundant and produces the warning message.

The Problem:

A user is getting a deprecation warning "MYSQL_OPT_RECONNECT is deprecated" while running a Rails application. They are using Ruby 3.1.4, Rails 6.1.7.4, MySQL2 gem version 0.5.5, MySQL 8.1 installed through Homebrew, and macOS Sonoma Public Beta (23A5312d). The user wants to know how to fix this warning.

The Solutions:

Solution 1: Remove `reconnect: false` from `database.yml`

  1. Open your database.yml file.
  2. Locate the reconnect parameter for your MySQL database configuration.
  3. If the reconnect parameter is set to false, change it to true or remove it entirely.
  4. Save the changes to database.yml.

Removing the reconnect: false parameter from the database.yml file prevents the MySQL gem from issuing the deprecated MYSQL_OPT_RECONNECT option, which fixes the warning.

Q&A

How to fix WARNING: MYSQL_OPT_RECONNECT is deprecated message?

Remove reconnect: false from database.yml to get rid of the warning message.

How to fix WARNING: MYSQL_OPT_RECONNECT is deprecated?

As reconnect is false by default, you can just remove it from database.yml.

Video Explanation:

The following video, titled "WARNING: MYSQL_OPT_RECONNECT is deprecated and will be ...", provides additional insights and in-depth exploration related to the topics discussed in this post.

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WARNING: MYSQL_OPT_RECONNECT is deprecated and will be removed in a future version I hope you found a solution that worked for you 🙂 The ...