[SERVER-20056] Log a startup warning if wiredTigerCacheSizeGB is > 80% of RAM Created: 20/Aug/15 Updated: 24/Apr/18 Resolved: 05/Apr/18 |
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| Status: | Closed |
| Project: | Core Server |
| Component/s: | WiredTiger |
| Affects Version/s: | None |
| Fix Version/s: | 3.4.15, 3.6.5, 3.7.4 |
| Type: | Improvement | Priority: | Minor - P4 |
| Reporter: | David Hows | Assignee: | Maria van Keulen |
| Resolution: | Done | Votes: | 0 |
| Labels: | supportgrab2018Q1 | ||
| Remaining Estimate: | Not Specified | ||
| Time Spent: | Not Specified | ||
| Original Estimate: | Not Specified | ||
| Issue Links: |
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| Backwards Compatibility: | Fully Compatible | ||||
| Backport Requested: |
v3.6, v3.4
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| Sprint: | Storage NYC 2018-03-26, Storage NYC 2018-04-09 | ||||
| Participants: | |||||
| Story Points: | 3 | ||||
| Description |
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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. |
| Comments |
| Comment by Githook User [ 23/Apr/18 ] |
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Author: {'email': 'maria@mongodb.com', 'username': 'mvankeulen94', 'name': 'Maria van Keulen'}Message: (cherry picked from commit 657fdff7b50949b50848b1de466c88f7be18034b) |
| Comment by Githook User [ 23/Apr/18 ] |
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Author: {'email': 'maria@mongodb.com', 'username': 'mvankeulen94', 'name': 'Maria van Keulen'}Message: (cherry picked from commit 657fdff7b50949b50848b1de466c88f7be18034b) |
| Comment by Githook User [ 05/Apr/18 ] |
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Author: {'email': 'maria@mongodb.com', 'name': 'Maria van Keulen', 'username': 'mvankeulen94'}Message: |
| Comment by Martin Bligh [ 11/Jan/16 ] |
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The threshold should be a lot lower than 100. Would suggest our default, 60. |