Change Details

Steps: [x] Stop replication on pc1014. [x] Merge CR to change pc2 primary to be pc1014: https://gerrit.wikimedia.org/r/c/operations/mediawiki-config/+/786955 [x] Deploy: `scap sync-file wmf-config/ProductionServices.php "Set pc1014 as pc2 primary T306983"` [] Downtime pc2: `sudo cookbook sre.hosts.downtime --hours 1 -r "Rebooting pc1012 T306983" 'A:db-section-pc2'` [] Reboot pc1012: `SKIP_DBCTL=1 SKIP_START_SLAVE=1 ~kormat/bin/reboot-host T303174 pc1012.eqiad.wmnet` [] Revert previous CR [] Deploy: `scap sync-file wmf-config/ProductionServices.php "Set pc1012 as pc2 primary T306983"` [] Start replication on pc1014. Note that pc2012 will stay trying to replicate from pc1012 during this time.

Steps: [x] Stop replication on pc1014. [x] Merge CR to change pc2 primary to be pc1014: https://gerrit.wikimedia.org/r/c/operations/mediawiki-config/+/786955 [x] Deploy: `scap sync-file wmf-config/ProductionServices.php "Set pc1014 as pc2 primary T306983"` [x] Downtime pc2: `sudo cookbook sre.hosts.downtime --hours 1 -r "Rebooting pc1012 T306983" 'A:db-section-pc2'` [x] Reboot pc1012: `SKIP_DBCTL=1 SKIP_START_SLAVE=1 ~kormat/bin/reboot-host T303174 pc1012.eqiad.wmnet` [] Revert previous CR [] Deploy: `scap sync-file wmf-config/ProductionServices.php "Set pc1012 as pc2 primary T306983"` [] Start replication on pc1014. Note that pc2012 will stay trying to replicate from pc1012 during this time.

Steps: [x] Stop replication on pc1014. [x] Merge CR to change pc2 primary to be pc1014: https://gerrit.wikimedia.org/r/c/operations/mediawiki-config/+/786955 [x] Deploy: `scap sync-file wmf-config/ProductionServices.php "Set pc1014 as pc2 primary T306983"` [x] Downtime pc2: `sudo cookbook sre.hosts.downtime --hours 1 -r "Rebooting pc1012 T306983" 'A:db-section-pc2'` [x] Reboot pc1012: `SKIP_DBCTL=1 SKIP_START_SLAVE=1 ~kormat/bin/reboot-host T303174 pc1012.eqiad.wmnet` [] Revert previous CR [] Deploy: `scap sync-file wmf-config/ProductionServices.php "Set pc1012 as pc2 primary T306983"` [] Start replication on pc1014. Note that pc2012 will stay trying to replicate from pc1012 during this time.