CODEWITHSUNDEEP
mongodb
Mike Jr
Mike Jr

Reputation: 1899

Multiple applications accessing the same mongodb instance

Application A opens mongodb and reads a document. The document now exists in Application A's memory. Application B, perhaps running on a different box (but in this case as a mock running in a different process on the same box) inserts data into the document. When does Application A see application B's change?

Mongo is configured to use safe writes and a journal. There is only the one shard.

Mongo updates are written immediately to the journal, but updates to the data file can take 60 seconds (syncdelay=60). How is this supposed to work when two different applications share the same instance?

Upvotes: 0

Views: 1493

Answers (1)

Zarathustra
Zarathustra

Reputation: 2943

When A queries for the document again.

You should take a look at the WriteConcern you are using.

Upvotes: 1

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