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Type:
Bug
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Resolution: Won't Fix
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Priority:
Major - P3
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None
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Affects Version/s: 6.0.11
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Component/s: None
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Labels:
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Storage Execution
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ALL
Oplog slots can be reserved for inserts prior to taking an exclusive lock on the metadata resource.
This can generate the following ordering on the primary
| Insert 1 | Insert 2 |
|---|---|
| Reserve oplog slot with TS(1) | |
| Reserve oplog slot with TS(2) | |
| X-lock resource | |
| Insert document with RID(1) | |
| X-lock resource | |
| Insert document with RID(2) |
On the secondary, we apply oplog entries serially for non-clustered capped collections. So we would apply oplog entry TS(1) with RID(1) and oplog entry TS(2) with RID(2) as record IDs are not globally unique. This results in a different natural order between the primary and secondaries, which we guarantee for capped collections.
The same might be possible for updates and deletes.
- is depended on by
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SERVER-86692 dbhash doesn't check natural order for capped collections with _id index
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- Needs Scheduling
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- related to
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- Closed
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- Closed
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