[SERVER-16176] Log slow checkpoints under WiredTiger Created: 16/Nov/14 Updated: 15/May/19 Resolved: 15/May/19 |
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| Status: | Closed |
| Project: | Core Server |
| Component/s: | Diagnostics, Logging, Storage, WiredTiger |
| Affects Version/s: | 2.8.0-rc0 |
| Fix Version/s: | 4.1.12 |
| Type: | Improvement | Priority: | Major - P3 |
| Reporter: | Bruce Lucas (Inactive) | Assignee: | Gregory Wlodarek |
| Resolution: | Done | Votes: | 3 |
| Labels: | WTplaybook, neweng, wiredtiger | ||
| Remaining Estimate: | Not Specified | ||
| Time Spent: | Not Specified | ||
| Original Estimate: | Not Specified | ||
| Issue Links: |
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| Backwards Compatibility: | Fully Compatible | ||||||||
| Sprint: | Storage NYC 2019-05-20 | ||||||||
| Participants: | |||||||||
| Description |
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Under mmapv1, slow background flushes are logged, and this can be useful for diagnosing some performance issues. The equivalent in WiredTiger, slow checkpoints, are not logged (although summary statistics are or will be available); it would be useful to have them logged as well. |
| Comments |
| Comment by Githook User [ 15/May/19 ] |
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Author: {'name': 'Gregory Wlodarek', 'username': 'GWlodarek', 'email': 'gregory.wlodarek@mongodb.com'}Message: |
| Comment by Daniel Pasette (Inactive) [ 17/Nov/14 ] |
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There are additional checkpoint stats now available, so that it is possible to see checkpoint timing stats over time, and come up with an avg, but they don't satisfy this exact request. For the new stats, see https://github.com/wiredtiger/wiredtiger/issues/1374. |