• Reference >
• mongo Shell Methods >
• Sharding Methods >
• sh.splitFind()

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

mongo Shell Method

This page documents a mongo method. This is not the documentation for database commands or language-specific drivers, such as Node.js. To use the database command, see the split command.

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

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.

copy

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

←   sh.splitAt() sh.startBalancer()  →

© MongoDB, Inc 2008-present. MongoDB, Mongo, and the leaf logo are registered trademarks of MongoDB, Inc.