[SERVER-47959] Retry JournalFlusher oplog reads on WriteConflictExceptions caused by concurrent {full:true} validate command on the oplog collection Created: 05/May/20 Updated: 29/Oct/23 Resolved: 06/May/20 |
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| Status: | Closed |
| Project: | Core Server |
| Component/s: | Storage |
| Affects Version/s: | None |
| Fix Version/s: | 4.7.0, 4.4.2 |
| Type: | Bug | Priority: | Major - P3 |
| Reporter: | Dianna Hohensee (Inactive) | Assignee: | Dianna Hohensee (Inactive) |
| Resolution: | Fixed | Votes: | 0 |
| Labels: | None | ||
| Remaining Estimate: | Not Specified | ||
| Time Spent: | Not Specified | ||
| Original Estimate: | Not Specified | ||
| Issue Links: |
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| Backwards Compatibility: | Fully Compatible | ||||||||||||||||
| Operating System: | ALL | ||||||||||||||||
| Backport Requested: |
v4.4
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| Sprint: | Execution Team 2020-05-18 | ||||||||||||||||
| Participants: | |||||||||||||||||
| Linked BF Score: | 35 | ||||||||||||||||
| Comments |
| Comment by Githook User [ 14/Sep/20 ] |
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Author: {'name': 'Lingzhi Deng', 'email': 'lingzhi.deng@mongodb.com', 'username': 'ldennis'}Message: validate command on the oplog collection (cherry picked from commit c15e8ae74071482d69179c7e5e5e6bdc882d2beb) |
| Comment by Githook User [ 06/May/20 ] |
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Author: {'name': 'Dianna Hohensee', 'email': 'dianna.hohensee@mongodb.com', 'username': 'DiannaHohensee'}Message: validate command on the oplog collection |
| Comment by Dianna Hohensee (Inactive) [ 06/May/20 ] |
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This is caused by not taking oplog collection level intent locks internally anymore, so reads can run concurrently with validate cmd's MODE_X oplog collection lock while calling WT::verify on the oplog collection. No need to backport because that change ( |