Quorum Queue, Build Update Failes to Elect a Leader

[akk017]

Describe the bug

Context:
Build Update meaning, pack a new version of definition.json, conf wih rabbitmq 3.12.4(machine compatible one) into zip, deploy it into machine and runit.

How Build Update is Currently Happening:
let say, there are 3 Node in a Cluster.

1. Node A - Get a update, stop the rabbitmq-server (killing it pid), and unzip and start a new rabbitmq
2. Same as Node A for Node B
3. Same as Node A for Node C

Issue:
Since we are using quorum queues, some of queues are running after a complete update and some are not, their state is "?"

Reproduction steps

1. RabbitMQ Version: 3.12.4
2. Erlang: 26.0.2

Reproduciton Step:

1. Create a cluster of 3 Nodes.
2. Declare 200 Queue.
3. Kill One and Start Again, for all Node (A, B, C)

One could see some of queue are in "?" State.

Reson Being:

All Replica in Follower state

Expected behavior

After One Node Dies, Another Node Should be elected as Leader for all queues

Additional context

No response

[mkuratczyk]

RabbitMQ 3.12 has been out of support for over a year: https://www.rabbitmq.com/release-information

There were many improvements to quorum queues since then, including fixes around leader election.
Please open a new issue if you have this problem on 4.0.