[SERVER-78701] Use cursor for reading chunks in `commitMergeAllChunksOnShard` Created: 06/Jul/23  Updated: 26/Oct/23

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

Type: Improvement Priority: Major - P3
Reporter: Pierlauro Sciarelli Assignee: Backlog - Catalog and Routing
Resolution: Unresolved Votes: 0
Labels: oldshardingemea, shardingemea-qw
Remaining Estimate: Not Specified
Time Spent: Not Specified
Original Estimate: Not Specified

Assigned Teams:
Catalog and Routing
Participants:
Story Points: 2

 Description   

When squashing together contiguous chunks via commitMergeAllChunksOnShard, currently a vector is populated with all chunks belonging to a shard for the specified namespace.

Purpose of this ticket is to read chunks by using a cursor in order to avoid wasting memory when it's not needed to scan all chunks.


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