The order of writing to oplog and replaying to db in secondary node

[Jing Liu]

Hi,

I'm wondering the order of writing to oplog and replaying in secondary node. When I read the code, the comment on top of multiApply() says that "// Applies a batch of oplog entries, by using a set of threads to apply the operations and then writes the oplog entries to the local oplog." Is that really the case? From the source code, I found writeToOplog called earlier than applyOps(). 

Thanks very much.

[Judah Schvimer]

Hi!

Thank you for bringing this to our attention! You're right. The comment was not updated with the relevant code. I have filed https://jira.mongodb.org/browse/SERVER-28674 to fix the mistake.

Best,

Judah