Heartbeats does not solve it. You need fencing tokens to reject writes if the lock has expired. See this amazing article by Martin Kleppman, author of Designin

Heartbeats does not solve it. You need fencing tokens to reject writes if the lock has expired. See this amazing article by Martin Kleppman, author of Designing Data-Intensive Applications. "How to do distributed locking" https://martin.kleppmann.com/2016/02/08/how-to-do-distributed-locking.html https://martin.kleppmann.com/2016/02/08/how-to-do-distribute...