gitlab-org--gitlab-foss/changelogs/unreleased/sh-thread-safe-markdown.yml

---
title: Make Redcarpet Markdown renderer thread-safe
merge_request:
author:
type: fixed
Make Redcarpet Markdown renderer thread-safe The Redcarpet library is not thread-safe as described in https://github.com/vmg/redcarpet/issues/570. Since we instantiate the Redcarpet renderer in a class variable, multiple Sidekiq threads can access the work buffer and corrupt the state. We work around this issue by memoizing the renderer on a thread basis. Closes #36637 2017-09-30 21:22:52 +00:00			`---`
			`title: Make Redcarpet Markdown renderer thread-safe`
			`merge_request:`
			`author:`
			`type: fixed`