[SERVER-82568] The magic restore should patch the content of system.sharding_ddl_coordinators Created: 30/Oct/23  Updated: 06/Nov/23

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

Type: Task Priority: Major - P3
Reporter: Paolo Polato Assignee: Backlog - Catalog and Routing
Resolution: Unresolved Votes: 0
Labels: None
Remaining Estimate: Not Specified
Time Spent: Not Specified
Original Estimate: Not Specified

Assigned Teams:
Catalog and Routing
Participants:

 Description   

The system.sharding_ddl_coordinators is a local collection containing metadata on outstanding DDL operations coordinated by the shard that hosts it: for specific DDLs (movePrimary and soon createCollection), such metadata contain references to other shard IDs participating in a request.

The restore procedure should adapt the values of these shard IDs to the topology of the destination cluster to ensure that outstanding operations will be correctly resumed and completed.

 


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