db.collection.totalSize()

db.collection.totalSize()

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 size in bytes of the data in the collection plus the size of every index on the collection.集合中数据的总大小（字节）加上集合上每个索引的大小。 If collection data is compressed (which is the default for WiredTiger), the returned size reflects the compressed size of the collection data.如果集合数据被压缩（这是WiredTiger的默认值），则返回的大小将反映集合数据的压缩大小。 If an index uses prefix compression (which is the default for WiredTiger), the returned size reflects the compressed size of the index.如果索引使用前缀压缩（这是WiredTiger的默认值），则返回的大小反映了索引的压缩大小。

The value returned is the sum of db.collection.storageSize() and db.collection.totalIndexSize() in bytes.返回的值是以字节为单位的db.collection.storageSize()和db.collection.totalIndexSize()之和。

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。