ovn: delete the db file if the node with new empty db file cannot join cluster for more than 120s #3101
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What type of this PR
Examples of user facing changes:
Which issue(s) this PR fixes:
If db files on all of the ovn nodes are corrupted because of power loss, ovn db servers cannot recover automatically.
After the db recovery, kube-ovn-controller should be restarted manually to create ovn resources.
WHAT
copilot:summary
copilot:poem
HOW
copilot:walkthrough