etcdserver/*: add "etcd_cluster_version" metric #10257
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Signed-off-by: Gyuho Lee <leegyuho@amazon.com>
Signed-off-by: Gyuho Lee <leegyuho@amazon.com>
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lgtm |
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Thank you very much @gyuho ! |
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This will be useful for #7308 (rollback support).
We can monitor local
etcd_cluster_versionmetrics from each node, to decide whether the downgrade/upgrade target version has been agreed./cc @wenjiaswe @jpbetz