[SERVER-47447] Add server parameter for the ping time threshold for changing sync sources Created: 09/Apr/20  Updated: 23/Apr/20  Resolved: 23/Apr/20

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

Type: Task Priority: Major - P3
Reporter: Samyukta Lanka Assignee: Xuerui Fa
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-47449 Re-evaluate sync source after fetchin... Closed
Related
related to SERVER-47601 Investigate defaults for changeSyncSo... Closed
is related to SERVER-47449 Re-evaluate sync source after fetchin... Closed
Sprint: Repl 2020-05-04
Participants:

 Description   

The new parameter will be called changeSyncSourceThresholdMillis and will default to 5ms.

It will provide the threshold between ping times that are considered as coming from within the same data center and ping times considered to be coming from a different data center. The parameter will help us determine if we should change sync sources because another node is significantly closer than our current sync source.



 Comments   
Comment by Xuerui Fa [ 23/Apr/20 ]

Will be implemented as a part of SERVER-47449

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