whee memcache: missing comments ftl

[azurelunatic]

Source of the missing comment problem found: Memcache issues.

When two database servers are very, very busy, sometimes one doesn't talk to the other one. And sometimes, the other one has no idea that someone left a comment just five minutes ago.

It's not the same comment rot as IJ had, which is a relief.

Comments

[pne.livejournal.com]

What was/is the cause behind IJ'd comment rot?

[azurelunatic]

An old legacy hack: the setting $NEW_ENTRY_CLEANUP_HACK.

Symptoms included actual data loss, rather than temporary "data? what data?" problems.

[foxfirefey]

And it took a really long time to fix, because it was tricky and squeaky's only one man with a day job.