Interface CollStats

Average object size in bytes

true if the collection is capped

Number of documents

The amount of storage available for reuse. The scale argument affects this value.

An array that contains the names of the indexes that are currently being built on the collection

The fields in this document are the names of the indexes, while the values themselves are documents that contain statistics for the index provided by the storage engine

Size of specific indexes in bytes

Size of the most recently created extent in bytes

The maximum number of documents that may be present in a capped collection

The maximum size of a capped collection

Number of indexes

Namespace

Number of extents (contiguously allocated chunks of datafile space)

Padding can speed up updates if documents grow

The scale value used by the command.

Collection size in bytes

(Pre)allocated space for the collection in bytes

Total index size in bytes

The sum of the storageSize and totalIndexSize. The scale argument affects this value

A number that indicates the user-set flags on the collection. userFlags only appears when using the mmapv1 storage engine

This document contains data reported directly by the WiredTiger engine and other data for internal diagnostic use