[SERVER-20056] Log a startup warning if wiredTigerCacheSizeGB is > 80% of RAM - MongoDB

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Type: Improvement
Status: Closed
Priority: Minor - P4
Resolution: Fixed
Affects Version/s: None
Fix Version/s: 3.4.15, 3.6.5, 3.7.4
Component/s: WiredTiger
Labels:
- supportgrab2018Q1

Backwards Compatibility:
Fully Compatible
Backport Requested:

v3.6, v3.4
Sprint:
Storage NYC 2018-03-26, Storage NYC 2018-04-09
Story Points:
3

Description

Currently you can set wiredTigerCacheSizeGB to be 100% of available memory, which will almost certainly lead to problems.

Perhaps a startup check here to confirm that wiredTigerCacheSizeGB is < 80% of available Memory.

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Assignee:: Maria van Keulen

Reporter:: David Hows

Participants:: David Hows, Githook User, Maria van Keulen, Martin Bligh

Votes:: 0 Vote for this issue

Watchers:: 4 Start watching this issue

Dates

Created:: Aug 20 2015 01:51:46 AM UTC

Updated:: Apr 24 2018 12:20:12 AM UTC

Resolved:: Apr 05 2018 05:24:55 PM UTC