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Type: Bug
Resolution: Fixed
Priority: Major - P3
Fix Version/s: 4.4.0-rc0, 4.4.0-rc1, 4.7.0
Affects Version/s: None
Component/s: Replication
Labels:
None

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

v4.4
Sprint:
Repl 2020-03-09
Linked BF Score:
50
Confidence Status:
None
Work Order:
3
CAR Domain/s:
None

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

Shard server replica set nodes in binary version 4.4 start up in FCV 4.2 by default. If they are downgraded to a v4.2 binary, the node will crash when trying parse the config 'term' field on startup. We should not write the config 'term' field when these nodes start up in FCV 4.2.

is related to

SERVER-47119 Config term does not get initialized until replSetReconfig is run

Closed

related to

SERVER-31634 FeatureCompatibilityVersion::setIfCleanStartup() should store FCV=3.4 for shardsvrs

Closed

SERVER-46288 Reconfig in 4.2 style with the current config on FCV downgrade

Closed

Assignee:: Will Schultz
Reporter:: Will Schultz
Participants:: Githook User, Kelly Lewis, Will Schultz
Votes:: 0 Vote for this issue
Watchers:: 3 Start watching this issue

Created:: Mar 03 2020 04:49:24 PM UTC
Updated:: Oct 29 2023 10:11:23 PM UTC
Resolved:: Mar 04 2020 10:09:09 PM UTC
Confidence Status Last Update:: 03/Mar/20 4:49 PM

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