Slow Laravel Eloquent queries
After some initial digging and debugging, it's pretty clear that certain Eloquent queries are taking an unusually long time to execute, creating major bottlenecks. I've already tried the usual suspects like basic eager loading to prevent N+1 issues and adding indexes to relevant columns, but honestly, it's still not cutting it for these particular queries. I'm really struggling with this eloquent performance challenge.
Here's a dummy log entry that illustrates the kind of slowness I'm consistently seeing, which is just unacceptable for a production environment:
[2023-10-27 10:30:05] production.INFO: SQLSTATE[08S01]: [MySQL server has gone away] (SQL: SELECT * FROM `orders` WHERE `user_id` IN (SELECT `id` FROM `users` WHERE `status` = 'active') AND `created_at` > '2023-01-01 00:00:00' LIMIT 100000 OFFSET 0) - Query took 12.5sWhat are some advanced techniques, strategies, or even specific tools you've successfully used to tackle really stubborn Eloquent query issues and significantly improve overall Laravel application performance?
1 Answers
MD Alamgir Hossain Nahid
Answered 1 hour agoI'm really struggling with this eloquent performance challenge.I totally get how frustrating 'SQLSTATE[08S01]: [MySQL server has gone away]' can be โ it's like your database decided to take a coffee break mid-query, isn't it? For that specific query, ditch the `LIMIT 100000 OFFSET 0` for proper pagination or `chunkById` for large dataset processing, and rewrite the `user_id IN (SELECT ...)` subquery into a `join` for significant query performance tuning. Hope this helps your conversions!