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Type: Improvement
Resolution: Fixed
Priority: Major - P3
Fix Version/s: 3.6.0-rc1
Affects Version/s: None
Component/s: Internal Code
Labels:
None

Backwards Compatibility:
Fully Compatible
Sprint:
Storage 2017-08-21, Storage 2017-09-11, Storage 2017-10-23

There are some non-trivial code paths (e.g: shutdown) that can happen before FCV is initialized (inside `repairDatabasesAndCheckVersion`). These non-trivial code paths may require reading FCV from memory and may incorrectly read the default 3.4 as opposed to an explicitly set 3.4.

The example of WiredTiger shutdown that wants to know the FCV value can make a sane decision with an uninitialized value. It's presumed this state would be sufficient for future cases.

depends on

SERVER-31235 Fix or blacklist jstests/multiVersion/3_upgrade_replset.js to not rely on unintentional WiredTiger downgrade

Closed

has to be done before

SERVER-31137 Assert that the featureCompatibilityVersion server parameter is initialized from the featureCompatibilityVersion document during startup

Closed

is depended on by

SERVER-31136 Add method to determine whether fCV has been set

Closed

SERVER-31211 Use config_base=false for encryption at rest WT instance.

Closed

Assignee:: Louis Williams

Reporter:: Daniel Gottlieb (Inactive)

Participants:: Daniel Gottlieb, Eric Milkie, Esha Maharishi, Githook User, Ian Whalen, Louis Williams, Maria van Keulen

Votes:: 0 Vote for this issue

Watchers:: 8 Start watching this issue

Created:: Jul 20 2017 05:32:43 PM UTC

Updated:: Oct 30 2023 11:15:04 PM UTC

Resolved:: Oct 16 2017 04:45:54 PM UTC

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