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  1. Compass
  2. COMPASS-6759

Investigate changes in PM-3319: More Astute Balancer M2: Global Balancing By Data Size

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    • Icon: Investigation Investigation
    • Resolution: Done
    • Icon: Major - P3 Major - P3
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    Description

      Original Downstream Change Summary

      Planning on making changes to the balancer so additional documentation will be needed

      Description of Linked Ticket

      Epic Summary

      Summary

      The balancer will have a new policy that will distribute all collections equally across the shards in a cluster by data size.

      Motivation

      Today only sharded collections are balanced across shards which can lead to a poor distribution of the data across the shards which leads to less than optimal resource utilization at a cluster level. Customers desire their workload to be as evenly distributed across the shards in their cluster as possible. To better distribute the workload across the cluster the balancer will take into account the size of both sharded and unsharded collection and will be able distribute unsharded and sharded collections as needed to achieve the goal of equal distribution of data across all shards.

      Documentation

      Product Description
      Scope
      Technical Design
      Docs Update

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            Unassigned Unassigned
            backlog-server-pm Backlog - Core Eng Program Management Team
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              Resolved: