Blogs relevant to

failover

MongoDB Shutdown Methods: db.shutdownServer() vs systemctl stop

MongoDB

replica set

database management

QuiescePeriod

shutdown

Mastering MySQL Group Replication Primary Promotion Techniques

auto-switch

auto-switch by weight

DBA

failover

fault tolerance

Prevent ProxySQL from directing traffic to broken MySQL replica

InnoDB

MySQL DBA

mysqld

group replication

opensource

PostgreSQL automatic failover with pg_auto_failover

Features

opensource

High Availability

postgresql

tools

ProxySQL Series : ProxySQL Native Cluster

High Availability

MySQL

ProxySQL

Mydbops

opensource

ProxySQL Series: Amazon Aurora (RDS) Read-Write Split.

cloud

MySQL

Mydbops

failover

Performance

TokuDB hot Backup and Recovery.

database

database management

MySQL

opensource

failover