etcdctl member promote 8e9e05c52164694d No help topic for 'promote'/ flag provided but not defined: -learner #449

[TrucullentFreddi]

Please read https://etcd.io/docs/latest/reporting_bugs/
Why is there inaccurate information on the official website? Why do I use the syntax specified in the off documentation, and it tells me that the syntax is incorrect?
When i use etcdctl member add infra4 --peer-urls=http://10.0.1.14:2380 --learne. i get an error " flag provided but not defined: -learner"
After i used etcdctl member add node_name, i get error #0: client: etcd member http://192.168.12.131:2379 has no leader.
etcdctl memner list
client: etcd cluster is unavailable or misconfigured; error #0: client: endpoint http://127.0.0.1:2379 exceeded header timeout
; error #1: dial tcp 127.0.0.1:4001: connect: connection refused
But after i used this commands( member add), it loked like
etcdctl member list
8e9e05c52164694d: name=pg_node3 peerURLs=http://localhost:2380 clientURLs=http://192.168.12.133:2379 isLeader=true

etcdctl cluster-health
cluster may be unhealthy: failed to list members
Error: client: etcd cluster is unavailable or misconfigured; error #0: client: endpoint http://127.0.0.1:2379 exceeded header timeout
; error #1: dial tcp 127.0.0.1:4001: connect: connection refused

error #0: client: endpoint http://127.0.0.1:2379 exceeded header timeout
error #1: dial tcp 127.0.0.1:4001: connect: connection refused

systemctl start etcd.service
^Z
[1]+ Stopped systemctl start etcd.service
[root@pg_node1 ~]# ^C

[root@pg_node1 ~]# systemctl status etcd.service
● etcd.service - Etcd Server
Loaded: loaded (/usr/lib/systemd/system/etcd.service; enabled; vendor preset: disabled)
Active: activating (start) since Wed 2021-08-18 03:55:47 EDT; 45s ago
Main PID: 2045 (etcd)
CGroup: /system.slice/etcd.service
└─2045 /usr/bin/etcd --name=pg_node1 --data-dir=/var/lib/etcd/default.etcd --listen-client-urls=http://192.168.12.131:2379,http://127.0.0.1:2379

Aug 18 03:56:32 pg_node1 etcd[2045]: failed to find member 8e9e05c52164694d in cluster cdf818194e3a8c32
Aug 18 03:56:32 pg_node1 etcd[2045]: failed to find member 8e9e05c52164694d in cluster cdf818194e3a8c32
Aug 18 03:56:32 pg_node1 etcd[2045]: failed to dial f838e30c28c4af8e on stream Message (peer f838e30c28c4af8e failed to find local node 8e9e05c52164694d)
Aug 18 03:56:32 pg_node1 etcd[2045]: failed to dial f838e30c28c4af8e on stream MsgApp v2 (peer f838e30c28c4af8e failed to find local node 8e9e05c52164694d)
Aug 18 03:56:32 pg_node1 etcd[2045]: failed to find member 8e9e05c52164694d in cluster cdf818194e3a8c32
Aug 18 03:56:32 pg_node1 etcd[2045]: failed to find member 8e9e05c52164694d in cluster cdf818194e3a8c32
Aug 18 03:56:32 pg_node1 etcd[2045]: failed to dial f838e30c28c4af8e on stream Message (peer f838e30c28c4af8e failed to find local node 8e9e05c52164694d)
Aug 18 03:56:32 pg_node1 etcd[2045]: failed to dial f838e30c28c4af8e on stream MsgApp v2 (peer f838e30c28c4af8e failed to find local node 8e9e05c52164694d)
Aug 18 03:56:32 pg_node1 etcd[2045]: failed to find member 8e9e05c52164694d in cluster cdf818194e3a8c32
Aug 18 03:56:32 pg_node1 etcd[2045]: failed to find member 8e9e05c52164694d in cluster cdf818194e3a8c32

journalctl -xe
Aug 18 03:57:46 pg_node1 etcd[2063]: failed to dial f838e30c28c4af8e on stream MsgApp v2 (peer f838e30c28c4af8e failed to find local node 8e9e05c52164694d)
Aug 18 03:57:46 pg_node1 etcd[2063]: failed to dial f838e30c28c4af8e on stream Message (peer f838e30c28c4af8e failed to find local node 8e9e05c52164694d)
Aug 18 03:57:46 pg_node1 etcd[2063]: failed to find member 8e9e05c52164694d in cluster cdf818194e3a8c32
Aug 18 03:57:46 pg_node1 etcd[2063]: failed to find member 8e9e05c52164694d in cluster cdf818194e3a8c32

[stale]

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