[DOCS-14251] Investigate changes in SERVER-54278: Add feature flag to disable Opportunistic Reads by default Created: 24/Feb/21 Updated: 13/Nov/23 Due: 26/Feb/21 Resolved: 26/Feb/21 |
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| Status: | Closed |
| Project: | Documentation |
| Component/s: | manual, Server |
| Affects Version/s: | None |
| Fix Version/s: | 4.2.13, Server_Docs_20231030, Server_Docs_20231106, Server_Docs_20231105, Server_Docs_20231113 |
| Type: | Task | Priority: | Major - P3 |
| Reporter: | Backlog - Core Eng Program Management Team | Assignee: | Andrew Feierabend (Inactive) |
| Resolution: | Fixed | Votes: | 0 |
| Labels: | None | ||
| Remaining Estimate: | Not Specified | ||
| Time Spent: | Not Specified | ||
| Original Estimate: | Not Specified | ||
| Issue Links: |
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| Participants: | |||||||||
| Days since reply: | 2 years, 46 weeks, 5 days ago | ||||||||
| Epic Link: | DOCSP-11344 | ||||||||
| Story Points: | 2 | ||||||||
| Description |
DescriptionDownstream Change Summary This ticket disables opportunistic read targeting by default, and introduces a new server parameter, "opportunisticSecondaryTargeting", to enable this feature. Description of Linked TicketOpportunistic reads against replica-sets was originally introduced in v4.2 as part of PM-856. This feature allows mongos to direct secondary reads to any secondary with an active connection, instead of waiting for a new connection to a specific secondary. Under certain workloads, as described in This ticket should introduce a new feature flag to disable opportunistic reads in v4.2 by default. In particular, the following tickets from PM-856 introduce new functionality that we might want to guard with the feature flag: We may wan to approach this ticket from this for loop, introduced by
Scope of changesImpact to Other DocsMVP (Work and Date)Resources (Scope or Design Docs, Invision, etc.) |
| Comments |
| Comment by Githook User [ 19/Mar/21 ] |
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Author: {'name': 'Andrew Feierabend', 'email': 'andrew.feierabend@mongodb.com', 'username': 'andf-mongodb'}Message: |
| Comment by Githook User [ 26/Feb/21 ] |
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Author: {'name': 'Andrew Feierabend', 'email': 'andrew.feierabend@mongodb.com', 'username': 'andf-mongodb'}Message: |
| Comment by Andrew Feierabend (Inactive) [ 25/Feb/21 ] |
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Thank you!! |