gan gw baru belajar mongodb

baru gw coba buat collection tapi bingung ama penjelasan buat collection :

db.createCollection("mycoll", {capped: true, size:100000})

capped collectoin itu artinya apa gan? gw translate bingung karena gw baru tau istilah capped ini di database dan ga' ngerti maksudnya ..

bhs inggrisnya penjelasannya :

When capped, a MongoDB collection has a couple of interesting properties. First, the data automatically ages out when the collection is full on a least recently inserted basis.



Second, for capped collections, MongoDB automatically keeps the objects in the collection in their insertion order. This is great for logging-types of problems where order should be preserved. To retrieve items in their insertion order: