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Status Completed
Categories Replication & Sharding
Created by Guest
Created on May 24, 2021

RELATED FEEDBACK

Support throttling the balancer for sharded clusters

As high throughput clusters grow and documents become larger, the MongoDB balancer may begin impacting workloads. I'd like the ability to throttle the speed at which the balancer or chunk migrator runs such that impact is minimised.
  • ADMIN RESPONSE
    Oct 18, 2025
    New in version 7.0 and also available in 6.3.1, 6.0.6, and 5.0.18 is the balancerMigrationsThrottlingMs ( https://www.mongodb.com/docs/manual/reference/parameters/#mongodb-parameter-param.balancerMigrationsThrottlingMs ) server parameter. This new parameter allows you to specify the minimum amount of time between balancing rounds which ultimately affects the balancing rate.