...
| Code Block |
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# Friendly one liner
for a in adminlb apimon cache cinder glance heatapi heatengine horizon keystone munin neutronapi novaapi novaservices puppetdb redis servicelb; do for b in $(seq 0 2); do ssh $a$b "halt" ; done ; done
# Broken down for readability
for a in adminlb apimon cache cinder glance heatapi heatengine horizon keystone munin neutronapi novaapi novaservices puppetdb redis servicelb;
do for b in $(seq 0 2);do
ssh $a$b "halt"
done
done |
...
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# for a in $(seq 0 2); do ssh mysql$a halt; sleep 60 ; done # On each mysql node each mysql node systemctl status mysql systemctl stop mysql systemctl status mysql halt |
6 - Kanin
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# for a in $(seq 0 2); do ssh kanin$a halt; sleep 15; done
# On each kanin node
systemctl status rabbitmq-server
systemctl stop rabbitmq-server
systemctl status rabbitmq-server
halt |
7 - Redis
Check which redis is master on http://adminapi.stack.it.ntnu.no:9000/
( the one with green line)
Turn of the others first.
Redis-cli command to find which role a redis server has:
| Code Block |
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# On each redis server
redis-cli -a "<password>" info replication | grep role
# Masters will print "role:master" and slaves will print "role:slave" |
Note which is last down and power it first on
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check : http://adminapi.stack.it.ntnu.no:9000/ # On non masters systemctl status mysqlredis systemctl stop mysqlredis systemctl status mysql |
6 - Kanin
| Code Block |
|---|
for a in $(seq 0 2); do ssh kanin$a halt; sleep 15; doneredis halt |
7 - Shut down cephmon
| Code Block |
|---|
for a in $(seq 0 2); do ssh cephmon$a halt; done |
...
vent til ceph -s health ok.
Lars Erik ødelegger nummereringa her:
skru på en adminlb, en servicelb og minst en puppetdb før røkla
7 røkla.
Bruk openstack kommando for å se at ting virker tm.
...