(unconfirmed) Documents lose metadata when database is under heavy load

[laserval]

A document can be saved to the database with changes without the metadata being updated.

A possible reason is that the document is that insertion and updating the metadata are individual database operations. A document is first inserted, then if insertion succeeds it is also marked as touched.

[remen]

Ouch, is this still true? Horrible if so!

[laserval]

I've not observed this again. I'd imagine this would occur especially if the DB is heavily used by other services as well.

[ssimon]

We see this at a customer running 0.4.0. Hard to reproduce in dev environment since we don't have access to the data externally

[laserval]

A note about @ssimon's comment: They don't have any external services that use MongoDB at that customer.

MongoDB 2.4.9