[SERVER-73987] Get rid of ClusterChunksResizePolicy Created: 14/Feb/23  Updated: 17/Feb/23  Resolved: 15/Feb/23

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

Type: Task Priority: Major - P3
Reporter: Silvia Surroca Assignee: Silvia Surroca
Resolution: Duplicate Votes: 0
Labels: None
Remaining Estimate: Not Specified
Time Spent: Not Specified
Original Estimate: Not Specified

Issue Links:
Depends
is depended on by SERVER-73126 Integrate auto-merging within the bal... Closed
Duplicate
duplicates SERVER-65332 Remove the process splitting the clus... Closed
Sprint: Sharding EMEA 2023-02-20
Participants:

 Description   

The policy `ClusterChunksResizePolicy` is splitting the chunks to the defined `chunkSize` on downgrade.

It was implemented to go back to a chunk size scenario where the flag `featureFlagBalanceAccordingToDataSize` was disabled (the flag has been deleted on 6dad29fa6).

That feature flag was enabled for v6.0.3 on SERVER-66781. So, assuming all downgrades from v7.0 will target a version equal or greater that v6.0.3, we must get rid of this policy to avoid over splitting the chunks on downgrade.


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