sh.splitFind()

Definition

sh.splitFind(namespace, query)

Splits the chunk that contains the shard key value specified by the query at the chunk's median point. sh.splitFind() creates two roughly equal chunks. To split a chunk at a specific point instead, see sh.splitAt().

Important

mongosh Method

This page documents a mongosh method. This is not the documentation for database commands or language-specific drivers, such as Node.js.

For the database command, see the split command.

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

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

• mongo shell v4.4

• mongo shell v4.2

The method takes the following arguments:

Parameter	Type	Description
namespace	string	The namespace (i.e. <database>.<collection>) of the sharded collection that contains the chunk to split.
query	document	A query document that specifies the shard key value that determines the chunk to split.

The sh.splitFind() method wraps the split command.

Consideration

In most circumstances, you should leave chunk splitting to the automated processes within MongoDB.

To use sh.splitFind(), the sharded collection must be populated.

Example

For the sharded collection test.foo, the following example splits, at the median point, a chunk that contains the shard key value x: 70.

sh.splitFind( "test.foo", { x: 70 } )