Habitat Supervisor quorum issue

README.md

How to make Redis not HA.

1. Export redis to a container.

  sudo hab pkg export docker core/redis

2. Create some docker network

docker network create --subnet=192.168.123.0/24 hab-crash

3. Start three containers, in three terminals

bash node-a.sh
bash node-b.sh
bash node-c.sh

4. Kill any of the nodes a few times, and it does not elect a new leader again.

node-a.sh

docker run --name node-a --net hab-crash --ip 192.168.123.2 --rm -e HAB_REDIS='protected-mode="no"' core/redis --topology=leader

node-b.sh

docker run --name node-b --net hab-crash --ip 192.168.123.3 --rm -e HAB_REDIS='protected-mode="no"' core/redis  --topology=leader --peer 192.168.123.2

node-c.sh

docker run --name node-c --net hab-crash --ip 192.168.123.4 --rm -e HAB_REDIS='protected-mode="no"' core/redis  --topology=leader --peer 192.168.123.2

demo: https://www.youtube.com/watch?v=cVIH87B-ZO0