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6.4.5. Additional Region and Zone Tasks
List all available regions with the following command:
# oo-admin-ctl-region -c list
Remove region and zone tags from a node with the following command:
# oo-admin-ctl-district -c unset-region -n district_name -i server_identity
Remove zones from a region with the following command:
# oo-admin-ctl-region -c remove-zone -r region_name -z zone_name
Destroy empty regions with the following command:
# oo-admin-ctl-region -c destroy -r region_nameProcedure 6.10. To Require New Applications Use Zones:
- In the
/etc/openshift/plugins.d/openshift-origin-msg-broker-mcollective.conffile on the broker host, set theZONES_REQUIRE_FOR_APP_CREATEparameter totrueto require that new applications only use nodes tagged with a zone. Whentrue, gear placement will fail if there are no zones available with the correct gear profile:ZONES_REQUIRE_FOR_APP_CREATE=true
- Restart the broker service:
#
service openshift-broker restart
Procedure 6.11. To Enforce the Minimum Number of Zones per Gear Group
- In the
/etc/openshift/plugins.d/openshift-origin-msg-broker-mcollective.conffile on the broker host, set theZONES_MIN_PER_GEAR_GROUPparameter to the desired minimum number of zones between which gears in application gear groups are distributed:ZONES_MIN_PER_GEAR_GROUP=number_of_zones
- Restart the broker service:
#
service openshift-broker restart
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