diff options
author | Michele Baldessari <michele@acksyn.org> | 2016-10-01 17:42:54 +0200 |
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committer | Michele Baldessari <michele@acksyn.org> | 2016-10-03 10:49:39 +0200 |
commit | 1d7231aae2b523c249da8bada3d33c889c94abb9 (patch) | |
tree | fe49d804536044297f3df1010c4531ddee49dcde /extraconfig/tasks/major_upgrade_pacemaker_migrations.sh | |
parent | 7ac30a97c4f814cced30598eab11ebc0cf31ca63 (diff) |
Change the rabbitmq ha policies during an M/N Upgrade
This takes care of the M->N upgrade path when changing
the ha rabbitmq policy.
Partial-Bug: #1628998
Change-Id: I2468a096b5d7042bc801a742a7a85fb1521c1c02
Diffstat (limited to 'extraconfig/tasks/major_upgrade_pacemaker_migrations.sh')
-rw-r--r-- | extraconfig/tasks/major_upgrade_pacemaker_migrations.sh | 19 |
1 files changed, 19 insertions, 0 deletions
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 +} |