[DOCS-13889] Investigate changes in SERVER-50491: Frequent schema changes due to freeStorageSize limit FTDC retention Created: 22/Sep/20  Updated: 13/Nov/23  Resolved: 11/Jan/21

Status: Closed
Project: Documentation
Component/s: manual, Server
Affects Version/s: None
Fix Version/s: 4.8.0, 4.4.2, 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: Dave Cuthbert (Inactive)
Resolution: Fixed Votes: 0
Labels: None
Remaining Estimate: Not Specified
Time Spent: Not Specified
Original Estimate: Not Specified

Issue Links:
Documented
documents SERVER-50491 Frequent schema changes due to freeSt... Closed
Participants:
Days since reply: 3 years, 4 weeks, 2 days ago
Epic Link: DOCSP-9747
Story Points: 3

 Description   

Description

Downstream Change Summary

freeStorageSize is now included in serverStatus even when it is zero (previously it was only included when nonzero). This is being backported to 4.4 as well.

Description of Linked Ticket

In SERVER-42037 we introduced a freeStorageSize metric that reports the amount of bytes available for reuse in the oplog table. But this value is only appended to serverStatus if it is non-zero, which creates frequent schema changes in the case where the oplog table has only a small amount of free space. In one test back-of-the-envelope calculation indicates this was cutting FTDC retention in half. The value should be included in serverStatus even if it's 0.

Scope of changes

Impact to Other Docs

MVP (Work and Date)

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



 Comments   
Comment by Githook User [ 11/Jan/21 ]

Author:

{'name': 'Dave Cuthbert', 'email': 'dave.cuthbert@mongodb.com', 'username': 'davemungo'}

Message: DOCS-13889 display freeStorageSize limit
Branch: v5.0
https://github.com/mongodb/docs/commit/5094e2030b381fcb4909285cf9a30e89b27a1e7d

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