CodexBloom - Programming Q&A Platform

Rails 7 and Redis: Difficulty with session store configuration causing advanced patterns in multiple environments

πŸ‘€ Views: 47 πŸ’¬ Answers: 1 πŸ“… Created: 2025-06-05
ruby-on-rails redis session-management Ruby

This might be a silly question, but I need help solving I'm performance testing and This might be a silly question, but I tried several approaches but none seem to work... I've searched everywhere and can't find a clear answer. I'm currently working with an scenario with configuring Redis as the session store in my Rails 7 application. In my `config/initializers/session_store.rb`, I set it up like this: ```ruby Rails.application.config.session_store :redis_store, { servers: [{ host: 'localhost', port: 6379, db: 0, namespace: 'session' }], expire_after: 90.minutes, key: '_my_app_session' } ``` The question arises when I test the application in different environments (development and production). In development, the sessions seem to work fine, but in production, I get intermittent `ActionDispatch::Session::RedisStore::SessionExpiredError` errors when trying to access the session data. I've also observed that after a specific idle time, the session data is not being retrieved correctly. I tried adjusting the `expire_after` setting but it didn't resolve the scenario. Furthermore, I'm running Redis as a Docker container, and when I connect to the Redis CLI, I notice that the sessions are indeed being stored but not retrieved correctly after being set. I also verified that `redis-cli` can successfully access my data, and I can see the correct keys under the `session` namespace. To troubleshoot further, I've added some logging in my application to see if the session is being set correctly. Here’s the code snippet for logging: ```ruby def set_session session[:user_id] = current_user.id Rails.logger.info "Session set for User ID: #{session[:user_id]}" end ``` Despite this, I still receive the `SessionExpiredError`. I've also considered the possibility of there being a mismatch in Redis configuration across environments, but I've double-checked that the same Redis version is being used in both development and production. Is there something I might be missing in my session store configuration or Redis setup that could cause this inconsistent behavior? Any insights or suggestions would be greatly appreciated! Am I missing something obvious? Is there a better approach? For context: I'm using Ruby on macOS. What am I doing wrong? My team is using Ruby for this CLI tool. Any ideas how to fix this? My development environment is Debian. Thanks for taking the time to read this! What's the best practice here?