RailsConf 2023 - A pragmatic and simple approach to fixing a memory leak by Vincent Rolea

Fixing memory leaks with a pragmatic approach: Learn how to identify and solve memory-related issues in your Rails app using Vincent Rolea's step-by-step guide.

Key takeaways

The speaker shares a common problem where a memory leak is causing issues in their application, making it hard to debug.
To fix the issue, Vincent Rolea uses a pragmatic approach rather than relying on complex tools or theories.
He instruments the code to find the source of the memory leak, using techniques like binary search to locate the problematic code.
Instrumenting the code allows him to pinpoint the issue to the sidekick client, which is responsible for enqueuing jobs in Redis.
The speaker shares a graph showing the average memory usage of the worker, which helps identify the issue.
He discusses the trade-offs of scaling horizontally versus vertically, and how to choose the right approach for a specific problem.
The speaker emphasizes the importance of being pragmatic and focusing on solving the problem rather than getting caught up in complex theories or tools.
He shares a number of specific techniques and strategies for debugging and fixing memory leaks, including using sidekick client middlewares and reducing concurrency.
The talk concludes with Vincent sharing a success story where the team was able to fix the memory leak using a pragmatic approach.
He also mentions the importance of learning from failure and using those experiences to improve and grow as a developer.

RailsConf 2023 - A pragmatic and simple approach to fixing a memory leak by Vincent Rolea

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