db.collection.storageSize()¶

db.collection.storageSize()¶

mongo Shell Method

This page documents the mongo shell method, and does not refer to the MongoDB Node.js driver (or any other driver) method. 本页记录了mongo shell方法，未提及MongoDB Node.js驱动程序（或任何其他驱动程序）方法。For corresponding MongoDB driver API, refer to your specific MongoDB driver documentation instead.有关相应的MongoDB驱动程序API，请参阅特定的MongoDB驱动程序文档。

Returns:返回：	The total amount of storage allocated to this collection for document storage.分配给此集合用于文档存储的总存储量。 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().如果采集数据是压缩的（这是WiredTiger的默认值），则存储大小反映了压缩的大小，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.如果成员处于另一种状态，例如STARTUP2，则操作会出错。

In previous versions, the operations can also be run when the member is in STARTUP2. 在以前的版本中，当成员在STARTUP2中时，也可以运行这些操作。However, the operations wait until the member transitions to RECOVERING.但是，这些操作将等待成员转换到RECOVERING。