db.collection.totalIndexSize()

db.collection.totalIndexSize()

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 of all indexes for the collection.集合的所有索引的总大小。 If an index uses prefix compression (which is the default for WiredTiger), the returned size reflects the compressed size.如果索引使用前缀压缩（这是WiredTiger的默认值），则返回的大小将反映压缩的大小。

This method provides a wrapper around the totalIndexSize output of the collStats (i.e. db.collection.stats()) operation.此方法为collStats（即db.collection.stats()）操作的totalIndexSize输出提供包装。

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。