Remove old records in mongodb based on Month

Question

I am trying to delete Older records present in my collection .

I have a collection named \"user_track\" , which consists of data in this format shown below

Answer 1

In addition to other answers you may be interesting in the "Time to live” collection feature: http://docs.mongodb.org/manual/tutorial/expire-data/

It's useful to automatically expire/remove documents from a collection after specific period of time.