[SERVER-22261] MMAPv1 LSNFile may be updated ahead of what is synced to data files - MongoDB Jira

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Details

Type: Bug
Status: Closed
Priority: Blocker - P1
Resolution: Fixed
Affects Version/s: None
Fix Version/s: 2.6.12, 3.0.10, 3.2.3, 3.3.1
Component/s: MMAPv1
Labels:
- code-and-test

Backwards Compatibility:
Fully Compatible
Operating System:
ALL
Backport Completed:

2.6.12, 3.0.10, 3.2.3
Sprint:
Integration F (02/01/16)
Case:
Linked BF Score:
0

Description

MMAPv1 journalling tracks the LSN of the last write to be fsynced to the data files so it knows where to start applying the journal file during recovery. Due to a sequencing error in how it is updated, it may be ahead of what is actually synced to the data files.

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Assignee:: Mathias Stearn

Reporter:: Mathias Stearn

Participants:: Githook User, Mathias Stearn

Votes:: 0 Vote for this issue

Watchers:: 14 Start watching this issue

Dates

Created:: Jan 21 2016 06:34:44 PM UTC

Updated:: Aug 27 2021 09:54:09 PM UTC

Resolved:: Jan 26 2016 09:22:40 PM UTC