[DOCS-13511] Investigate changes in SERVER-43846: Add way to track the number of failovers that would have caused orphaned documents Created: 12/Mar/20  Updated: 13/Nov/23  Due: 27/Mar/20  Resolved: 25/Mar/20

Status: Closed
Project: Documentation
Component/s: manual, Server
Affects Version/s: None
Fix Version/s: 4.3.5, 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:
Documented
documents SERVER-43846 Add way to track the number of failov... Closed
Participants:
Days since reply: 3 years, 46 weeks ago
Epic Link: DOCS: 4.4 Server Release Work

 Description   

Description

Downstream Change Summary

mongod shards only

Not sure worth documenting. This new field doesn't have real purpose than for the products team to validate that the Range Deleter helps.

New field in shardingStatistics called unfinishedMigrationFromPreviousPrimary, which contains the number of unfinished migrations left by previous primary.

Description of Linked Ticket

In order to validate the efficacy/helpfulness of the resumable range deleter project, it would be good to have a way to track statistics on when the resumability aspect of the range deleter is helpful. One way to do this would be to track on step up whether or not there were outstanding range deleter tasks - since these are tasks that would have led to orphaned documents had there not been a resumable range deleter.

Scope of changes

Impact to Other Docs

MVP (Work and Date)

Resources (Scope or Design Docs, Invision, etc.)



 Comments   
Comment by Githook User [ 25/Mar/20 ]

Author:

{'name': 'Andrew Feierabend', 'username': 'andf-mongodb', 'email': 'andrew.feierabend@mongodb.com'}

Message: DOCS-13511 add unfinishedMigrationFromPreviousPrimary field to serverstatus
Branch: master
https://github.com/mongodb/docs/commit/2f08863fe4d79c8c4ae0705374c75208a91c9724

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