sensu-go v6.0 要求etcd版本> v3.4以上;
./sensu-backend start -c backend.yaml
error:
- {"component":"etcd","level":"fatal","msg":"cluster cannot be downgraded (current version: 3.3.22 is lower than determined cluster version: 3.4).","pkg":"etcdserver/membership","time":"2020-08-18T10:12:35+08:00"}按照下面的指令升级etcd 版本为3.4
➜ cat go.mod|grep etcd
github.com/coreos/etcd v3.3.22+incompatible
+ ➜ go mod edit -require=github.com/coreos/etcd@v3.4.0
➜ cat go.mod|grep etcd
github.com/coreos/etcd v3.4.0
go.etcd.io/bbolt v1.3.4