mongo Shell Method
This page documents a
mongomethod. This is not the documentation for database commands or language-specific drivers, such as Node.js. To use the database command, see the
storageSizefield returned by the
For MongoDB API drivers, refer to the language-specific MongoDB driver documentation.
Returns: The total amount of storage in bytes allocated to this collection for document storage.
If collection data is compressed (which is the
default for WiredTiger), the storage size reflects the compressed size and may be smaller than the value returned by
Starting in MongoDB 4.4, to run on a replica set member,
collStatsoperations require the member to be in
SECONDARYstate. If the member is in another state, such as
STARTUP2, the operation errors.
In previous versions, the operations also run when the member is in
STARTUP2. The operations wait until the member transitioned to