sh.enableAutoSplit

This version of the documentation is archived and no longer supported. To upgrade your 5.0 deployment, see the MongoDB 6.0 upgrade procedures.

Description

sh.enableAutoSplit()

New in version 3.4.

Enables auto-splitting for the sharded cluster. Auto-splitting is enabled by default.

sh.enableAutoSplit() enables the autosplit flag in the config.settings collection.

You can only run sh.enableAutoSplit() from a mongosh session that is connected to a mongos instance. sh.enableAutoSplit() errors if run on a mongod instance.

Starting in MongoDB 4.2, sh.startBalancer() also enables auto-splitting for the sharded cluster.

For more information on chunk splits, see Chunk Splits. For more information about how MongoDB balances chunks among shards, see: Manage Sharded Cluster Balancer and Sharded Cluster Balancer.

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sh.enableBalancing

sh.enableSharding