[SERVER-84807] Fix wrong pre-splitting documentation on 6.0+ Created: 14/Apr/23  Updated: 06/Feb/24

Status: Open
Project: Core Server
Component/s: None
Affects Version/s: None
Fix Version/s: None

Type: Bug Priority: Major - P3
Reporter: Tommaso Tocci Assignee: Pierlauro Sciarelli
Resolution: Unresolved Votes: 0
Labels: None
Remaining Estimate: Not Specified
Time Spent: Not Specified
Original Estimate: Not Specified

Issue Links:
Problem/Incident
Related
related to SERVER-76136 Shard Collection to Automatically Dis... Open
Sprint: Sharding EMEA 2023-09-04, Sharding EMEA 2023-09-18, Sharding EMEA 2023-10-02, Sharding EMEA 2023-10-16, Sharding EMEA 2023-10-30, CAR Team 2023-11-13, CAR Team 2023-11-27, CAR Team 2023-12-11, CAR Team 2023-12-25, CAR Team 2024-01-08, CAR Team 2024-01-22, CAR Team 2024-02-05, CAR Team 2024-02-19
Participants:

 Description   

With the implementation of "PM-2323 No More Auto-Splitter (Milestone 1)" in 6.0 we broke the old procedure used in the field to pre-split and distribute chunks of an empty collection.
This procedure was used to speedup the initial bulk-loading of data into a collection and is also described in our official documentation.

Starting from 6.0 customer can't rely anymore on this approach since the balancer won't automatically distribute chunks for an empty collection. (data-size based balancer).

As part of this ticket we should test and document a new approach based on moveRange and update the official documentation.


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