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
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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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Ravindra Savaram is a Technical Lead at Mindmajix.com. His passion lies in writing articles on the most popular IT platforms including Machine learning, DevOps, Data Science, Artificial Intelligence, RPA, Deep Learning, and so on. You can stay up to date on all these technologies by following him on LinkedIn and Twitter.