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Type: Bug
Resolution: Fixed
Priority: Major - P3
Fix Version/s: 8.1.0-rc0
Affects Version/s: None
Component/s: None
Labels:
None

Assigned Teams:

Catalog and Routing
Backwards Compatibility:
Fully Compatible
Operating System:
ALL
Sprint:
CAR Team 2024-08-05, CAR Team 2024-08-19, CAR Team 2024-09-02, CAR Team 2024-09-16, CAR Team 2024-09-30, CAR Team 2024-10-14, CAR Team 2024-10-28, CAR Team 2024-11-11, CAR Team 2024-11-25, CAR Team 2024-12-23, CAR Team 2025-01-06, CAR Team 2025-01-20, CAR Team 2025-02-03, CAR Team 2025-02-17
Linked BF Score:
200
Confidence Status:
None
Work Order:
3

Aha! Reference:
None
Tracking Level:
None
Risk Status:
None
Exec Notes:
None
Goal Name:
None
Goal Link:
None

Closing a storage engine snapshot via abandonSnapshot() and WriteUnitOfWork::commit() invalidates the CollectionCatalog snapshot held by callers. There are no preventative measures to ensure that callers do not continue using a potentially invalid catalog snapshot, and this is dangerous.

This causes memory errors and segfaults like this one: ~~SERVER-81331~~.

This is also likely a problem just for Lock-free-reads operations

is depended on by

SERVER-95260 Investigate generational lock information

Backlog

is related to

SERVER-101246 [<= v8.0] Fix invalid accesses to invalidated CollectionCatalog after closing storage engine snapshot

Needs Merge

related to

SERVER-93509 GlobalLock can potentially release the snapshot involuntarily

Closed

SERVER-95197 Investigate if it's possible to use consistent collections during compact

Backlog

SERVER-100333 Prepare to remove CollectionPtr(const Collection*) constructor

Closed

SERVER-95260 Investigate generational lock information

Backlog

SERVER-94787 Avoid abandoning the snapshot explicitly in CollectionScan

Closed

SERVER-95194 Change checkAndHashCollection function to not use the unsafe CollectionPtr constructor

Closed

SERVER-95195 Avoid instantiating CollectionPtr using unsafe constructor in index builds coordinator

Closed

SERVER-95196 Avoid instantiating CollectionPtr using unsafe constructor in MultiIndexBlock

Closed

SERVER-95308 Investigate if it's worth having a debug only primitive for reference counted pointers

Closed

split to

SERVER-94616 Add Absl::InlinedVector GDB pretty printer

Backlog

(6 related to, 1 split to)

Assignee:: Jordi Olivares Provencio
Reporter:: Louis Williams
Participants:: Githook User, Jordi Olivares Provencio, Louis Williams
Votes:: 0 Vote for this issue
Watchers:: 17 Start watching this issue

Created:: May 29 2024 09:03:30 PM UTC
Updated:: May 14 2025 01:12:16 PM UTC
Resolved:: Feb 04 2025 09:46:12 AM UTC
Confidence Status Last Update:: 14/Jan/25 12:41 PM

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