MW switch back date: Tue 14th Sept 2021
- Replication eqiad -> codfw is running
- s1
- s2
- s3
- s4
- s5
- s6 see T288594#7324150
- s7
- s8
- x1
- x2
- es4
- es5
- pc1
- pc2
- pc3
- Check and disable GTID on eqiad masters for the above sections.
- Check that all eqiad slaves have GTID enabled
- Check which notifications are disabled for eqiad hosts
- Check event scheduler is enabled on eqiad hosts
- Check that query killers are installed and enabled on eqiad hosts
- Update section_params in hieradata/common/profile/mariadb.yaml: https://gerrit.wikimedia.org/r/c/operations/puppet/+/719168
- Review DB MW weights
- s1
- s2
- s3
- s4
- s5
- s6
- s7
- s8
- x1
- x2
- es4
- es5
- pc1
- pc2
- pc3