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#longhorn-storage
Title
# longhorn-storage
a

adamant-kite-43734

11/13/2022, 8:39 PM
This message was deleted.
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famous-shampoo-18483

11/14/2022, 10:46 AM
I guess you mean the old instance manager pods? If there is no replica running (
running
means the related volume is detached) insides a non-default instance-manager-r pod, the pod will be cleaned up automatically. Similar logic applied to the instance-manager-e pods, but a running engine means the related volume is attached on the node. In other words, after the Longhorn system upgrade, Longhorn will directly deploy a set of instance manager pod as the default one. But at this moment, all attached volumes have running engines/replicas in the old instance managers. If you do live upgrade for the running volumes, the replicas will be migrated to the new instance-manager-r pods then Longhorn can clean up the old instance-manager-r pods automatically. But if you want to clean up the old instance-manager-e pods, you need to detach the old running volumes from the related nodes. In the future, Longhorn may merge the instance-manager-r and instance-manager-e pod on a node into one single pod. And we will consider the improvement of the engine upgrade part.
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