Etcd insufficient Members critical
Etcd cluster should have an odd number of members
>>>
count
(
) % 2 == 0
The query count(etcd_server_id) % 2 == 0 counts the current etcd members reporting a server ID and checks if that count is an even number (i.e., divisible by 2). The alert triggers when the total number of etcd members is even, meaning the cluster lacks the recommended odd number of members.
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