Description

On a site with a large number of registered users (e.g. wiki.debian.org), saving a page taks a very long time.

Debian Bug 668000

Steps to reproduce

1. setup a wiki with lots of users (several thousand)
2. save a page and see how long it takes

Example

Component selection

• general

With a large number of users, the design of the page subscription system doesn't scale well. Saving a page works well, but moin then scans all the user data files looking for the subscribed_pages data. With thousands of users registered, this can take a very long time; we're seeing > 90 seconds on a wiki with more than 10,000 users.

This area needs fixing in some way - maybe add a cache in front of the user lookup here, or store the subscribed_pages information differently. I might be able to help with coding this, but I'd want to see what other people think first in terms of a design.

Details

Workaround

Discussion

Well, the issue is known, but likely not easy to fix. If you want to help improving moin / moin2, feel invited to join us on MoinMoinChat. -- ThomasWaldmann 2012年04月11日 07:27:11

Plan

• Priority:
• Assigned to:
• Status:

CategoryMoinMoinBug