Convert TTL Collection to Capped Collection

[TwoStep]

Hello:

I was wondering if there would be any problems converting a collection that used TTL to expire data to a capped collection? What would happen to the TTL interval? Would it be deleted from the collection records? I don't want both TTL and capped collection, I am merely attempting to convert two big collections from one to the other.

Thanks so much in advance!

Jason

[Dwight Merriman]

capped can't be TTL as deletes aren't permitted for capped collections.

if you can make the TTL collection back to a regular colleciton, you can then run they convertToCapped command to complete the process.

i think getting rid of TTL feature is as simple as removing that index?  someone correct me if i have that wrong?

http://docs.mongodb.org/manual/reference/command/convertToCapped/

p.s. backup first :-)