[SERVER-66625] SingleServerDiscoveryMonitor::requestImmediateCheck can be ignored Created: 20/May/22  Updated: 12/Dec/23

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

Type: Task Priority: Major - P3
Reporter: Randolph Tan Assignee: Backlog - Cluster Scalability
Resolution: Unresolved Votes: 0
Labels: sharding-nyc-subteam2
Remaining Estimate: Not Specified
Time Spent: Not Specified
Original Estimate: Not Specified

Issue Links:
Depends
Related
is related to SERVER-66624 Make all_config_servers_blackholed_fr... Closed
Assigned Teams:
Cluster Scalability
Participants:
Linked BF Score: 43
Story Points: 4

 Description   

for a long time due to outstanding hello request.

There is currently a throttling mechanism to prevent the monitor from refreshing too frequently. However, in the case when the outstanding request is taking too long (for example, in one of our tests, we discard network messages), this can cause the monitor to not try to refresh even though the destination becomes healthy.

Note that for streamable hello, it has a minimum 10 sec timeout, whereas single hello uses a different timeout.


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