diff options
| -rwxr-xr-x | extraconfig/tasks/major_upgrade_controller_pacemaker_1.sh | 6 | ||||
| -rw-r--r-- | extraconfig/tasks/major_upgrade_pacemaker_migrations.sh | 19 |
2 files changed, 24 insertions, 1 deletions
diff --git a/extraconfig/tasks/major_upgrade_controller_pacemaker_1.sh b/extraconfig/tasks/major_upgrade_controller_pacemaker_1.sh index d4200e5f..23074fcb 100755 --- a/extraconfig/tasks/major_upgrade_controller_pacemaker_1.sh +++ b/extraconfig/tasks/major_upgrade_controller_pacemaker_1.sh @@ -20,9 +20,13 @@ check_disk_for_mysql_dump STONITH_STATE=$(pcs property show stonith-enabled | grep "stonith-enabled" | awk '{ print $2 }') pcs property set stonith-enabled=false -# Migrate to HA NG +# Migrate to HA NG and fix up rabbitmq queues +# We fix up the rabbitmq ha queues after the migration because it will +# restart the rabbitmq resource. Doing it after the migration means no other +# services will be restart as there are no other constraints if [[ -n $(is_bootstrap_node) ]]; then migrate_full_to_ng_ha + rabbitmq_mitaka_newton_upgrade fi # After migrating the cluster to HA-NG the services not under pacemaker's control diff --git a/extraconfig/tasks/major_upgrade_pacemaker_migrations.sh b/extraconfig/tasks/major_upgrade_pacemaker_migrations.sh index cd78f838..5b834b2b 100644 --- a/extraconfig/tasks/major_upgrade_pacemaker_migrations.sh +++ b/extraconfig/tasks/major_upgrade_pacemaker_migrations.sh @@ -169,3 +169,22 @@ function migrate_full_to_ng_ha { fi fi } + +# This function will make sure that the rabbitmq ha policies are converted from mitaka to newton +# In mitaka we had: Attributes: set_policy="ha-all ^(?!amq\.).* {"ha-mode":"all"}" +# In newton we want: Attributes: set_policy="ha-all ^(?!amq\.).* {"ha-mode":"exactly","ha-params":2}" +# The nr "2" should be CEIL(N/2) where N is the number of Controllers (i.e. rabbit instances) +# Note that changing an attribute like this makes the rabbitmq resource restart +function rabbitmq_mitaka_newton_upgrade { + if pcs resource show rabbitmq-clone | grep -q -E "Attributes:.*\"ha-mode\":\"all\""; then + # Number of controller is obtained by counting how many hostnames we + # have in controller_node_names hiera key + nr_controllers=$(($(hiera controller_node_names | grep -o "," |wc -l) + 1)) + nr_queues=$(($nr_controllers / 2 + ($nr_controllers % 2))) + if ! [ $nr_queues -gt 0 -a $nr_queues -le $nr_controllers ]; then + echo_error "ERROR: The nr. of HA queues during the M/N upgrade is out of range $nr_queues" + exit 1 + fi + pcs resource update rabbitmq set_policy='ha-all ^(?!amq\\.).* {"ha-mode":"exactly","ha-params":'"$nr_queues}" --wait=600 + fi +} |