{{Deployment calendar event card
    |when=2021-08-24 23:00 SF
    |length=0.5
    |window=Database primary switchover for s7
    |who={{ircnick|kormat|Stevie Beth Mhaol}}, {{ircnick|marostegui|Manuel 'Early Bird' Arostegui}}, {{ircnick|Amir1|Amir}}
    |what=https://phabricator.wikimedia.org/T300006
}}

sudo pt-config-diff --defaults-file /root/.my.cnf h=es1024.eqiad.wmnet h=es1023.eqiad.wmnet

sudo cookbook sre.hosts.downtime --hours 1 -r "Primary switchover es5 T300006" 'A:db-section-es5'

sudo dbctl instance es1023 set-weight 0
sudo dbctl config commit -m "Set es1023 with weight 0 T300006"

sudo db-switchover --timeout=15 --only-slave-move es1024 es1023

sudo cumin 'es1024* or es1023*' 'disable-puppet "primary switchover T300006"'

!log Starting es5 eqiad failover from es1024 to es1023 - T300006

sudo dbctl --scope eqiad section es5 ro "Maintenance until 05:15 UTC - T300006"
sudo dbctl config commit -m "Set es5 eqiad as read-only for maintenance - T300006"

sudo db-switchover --skip-slave-move es1024 es1023
echo "===== es1024 (OLD)"; sudo db-mysql es1024 -e 'show slave status\G'
echo "===== es1023 (NEW)"; sudo db-mysql es1023 -e 'show slave status\G'

sudo dbctl --scope eqiad section es5 set-master es1023
sudo dbctl --scope eqiad section es5 rw
sudo dbctl config commit -m "Promote es1023 to es5 primary and set section read-write T300006"

sudo cumin 'es1024* or es1023*' 'run-puppet-agent -e "primary switchover T300006"'

events_coredb_master.sql on the new primary es1023
events_coredb_slave.sql on the new slave es1024

sudo dbctl instance es1024 set-candidate-master --section es5 true
sudo dbctl instance es1023 set-candidate-master --section es5 false

sudo dbctl instance es1024 depool
sudo dbctl config commit -m "Depool es1024 T300006"