Converse to adding capacity to our OpenStack Object Storage cluster, there may be times where we need to scale back or remove a failed node for service. You may need to remove a compute node from a cluster for troubleshooting or maintenance reasons.
We can do this by removing nodes from the zones in our cluster. In the following example, we will remove node 172.16.0.212 in z5, which only has one storage device attached, /dev/sdb1.
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Log in to the OpenStack Object Storage Proxy Server. To log on to our OpenStack Object Storage Proxy host that was created using Vagrant, issue the following command:
Vagrant ssh shift
|Related Article: Openstack Cloud Tutorial|
Carry out the following to remove a storage node from a zone:
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Removing the node from OpenStack object storage cluster, using the swift-ring-builder remove command. Once done, we are then free to decommission that node. We repeat it for each node (or device) in the zone.
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