[SERVER-69567] Investigate possibility of using WT_MODIFY for Oplog replication Created: 09/Sep/22  Updated: 05/Dec/22

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

Type: Task Priority: Major - P3
Reporter: Jordi Olivares Provencio Assignee: Backlog - Replication Team
Resolution: Unresolved Votes: 0
Labels: None
Remaining Estimate: Not Specified
Time Spent: Not Specified
Original Estimate: Not Specified

Issue Links:
Depends
depends on WT-9668 Improve overlap detection in WT_MODIF... Open
Assigned Teams:
Replication
Participants:

 Description   

In SERVER-69396 we will explore replacing the full-document updates of time-series insertions with WT_MODIFY application as it reduces the I/O used significantly.

As normal Oplog updates already contain a Diff object sometimes, we could directly apply the computed damages instead of materializing the full document update.

Note that this directly depends on WT-9668 and should only be started after the ticket gets resolved.


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