db.collection.storageSize()

db.collection.storageSize()

Important重要

mongosh Method

This is a mongosh method. This is not the documentation for Node.js or other programming language specific driver methods.

In most cases, mongosh methods work the same way as the legacy mongo shell methods. However, some legacy methods are unavailable in mongosh.

For the legacy mongo shell documentation, refer to the documentation for the corresponding MongoDB Server release:

• mongo shell v4.4
• mongo shell v4.2
• mongo shell v4.0

For MongoDB API drivers, refer to the language specific MongoDB driver documentation.

Returns:返回：	The total amount of storage in bytes allocated to this collection for document storage.分配给此集合用于文档存储的总存储量（以字节为单位）。 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 db.collection.dataSize().如果集合数据被压缩（这是WiredTiger的默认值），则存储大小反映了压缩的大小，并且可能小于db.collection.dataSize()返回的值。

Provides a wrapper around the storageSize field of the collStats (i.e. db.collection.stats()) output.提供collStats（即db.collection.stats()）输出的storageSize字段的包装。

Starting in MongoDB 4.4, to run on a replica set member, collStats operations require the member to be in PRIMARY or SECONDARY state. 从MongoDB 4.4开始，要在副本集成员上运行，collStats操作要求该成员处于PRIMARY或SECONDARY状态。If the member is in another state, such as STARTUP2, the operation errors.如果成员处于其他状态，如STARTUP2，则操作出错。

In previous versions, the operations can also be run when the member is in STARTUP2. 在以前的版本中，也可以在成员处于STARTUP2时运行操作。However, the operations wait until the member transitions to RECOVERING.但是，这些操作将一直等到成员转换到RECOVERING。