[SERVER-37695] add debug replOplogJournalDelayMillis setParameter Created: 22/Oct/18  Updated: 05/Nov/18  Resolved: 05/Nov/18

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

Type: Improvement Priority: Major - P3
Reporter: Geert Bosch Assignee: Geert Bosch
Resolution: Won't Fix Votes: 0
Labels: None
Remaining Estimate: Not Specified
Time Spent: Not Specified
Original Estimate: Not Specified

Issue Links:
Related
is related to SERVER-37233 Increase in disk i/o for writes to re... Closed
Sprint: Storage NYC 2018-11-05, Storage NYC 2018-11-19
Participants:

 Description   

As currently only journaled oplog entries may be replicated, the oplog visibility thread sync the journal attempts to sync as fast as possible if there are any oplog waiters. This debug parameter allows trading off replication lag for I/O load.


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