[SOLVED] Wrong IP when adding a node to a cluster

davi_sehn · Nov 20, 2020

Hi, I'm new on proxmox and its communitty, and I faced an error that i couldn’t solve.

The error is that when I'm copying the information to join the cluster I created, the node IP "changes" from *.*.*.12 to *.*.*.175.
When I try to connect to the node with this information I get this message:
detected the following error(s):
* local node address: cannot use IP '*.*.*.174', not found on local node!

TASK ERROR: Check if node may join a cluster failed!

and I don't know what to do! Can someone please help me?

Moayad · Nov 20, 2020

Hi,

Please post your network config for *.*.*.175 node

Did you tried to join node to cluster by CLI [1]? - maybe need to clear your cache browser.

[1] https://pve.proxmox.com/pve-docs/chapter-pvecm.html#_join_node_to_cluster_via_command_line

davi_sehn · Nov 20, 2020

Hi, here is the network configs (ip a):

root@pve2:~# ip a
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
valid_lft forever preferred_lft forever
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
2: eno1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq master vmbr0 state UP group default qlen 1000
link/ether 6c:3b:e5:51:09:fc brd ff:ff:ff:ff:ff:ff
3: eno2: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN group default qlen 1000
link/ether 6c:3b:e5:51:09:fd brd ff:ff:ff:ff:ff:ff
4: vmbr0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
link/ether 6c:3b:e5:51:09:fc brd ff:ff:ff:ff:ff:ff
inet 10.1.1.12/24 brd 10.1.1.255 scope global vmbr0
valid_lft forever preferred_lft forever
inet6 fe80::6e3b:e5ff:fe51:9fc/64 scope link
valid_lft forever preferred_lft forever

and when I tried to join the cluster via CLI I got the exact same error message.

NOTE: I do have some VMs on the cluster's node (10.1.1.12), but I have none in the node I'm trying to connect to the cluster.

Moayad · Nov 23, 2020

Hi again,

Please post output of cat /etc/network/interfaces and pveversion -v for both nodes

davi_sehn · Nov 23, 2020

Ok, here are the outputs from pve2 (10.1.1.12, the node I created the cluster on):

Code:

root@pve2:~# cat /etc/network/interfaces
# network interface settings; autogenerated
# Please do NOT modify this file directly, unless you know what
# you're doing.
#
# If you want to manage parts of the network configuration manually,
# please utilize the 'source' or 'source-directory' directives to do
# so.
# PVE will preserve these directives, but will NOT read its network
# configuration from sourced files, so do not attempt to move any of
# the PVE managed interfaces into external files!

auto lo
iface lo inet loopback

iface eno1 inet manual

iface eno2 inet manual

auto vmbr0
iface vmbr0 inet static
        address 10.1.1.12/24
        gateway 10.1.1.1
        bridge-ports eno1
        bridge-stp off
        bridge-fd 0

Code:

root@pve2:~# pveversion -v
proxmox-ve: 6.2-1 (running kernel: 5.4.34-1-pve)
pve-manager: 6.2-4 (running version: 6.2-4/9824574a)
pve-kernel-5.4: 6.2-1
pve-kernel-helper: 6.2-1
pve-kernel-5.4.34-1-pve: 5.4.34-2
ceph-fuse: 12.2.11+dfsg1-2.1+b1
corosync: 3.0.3-pve1
criu: 3.11-3
glusterfs-client: 5.5-3
ifupdown: 0.8.35+pve1
ksm-control-daemon: 1.3-1
libjs-extjs: 6.0.1-10
libknet1: 1.15-pve1
libproxmox-acme-perl: 1.0.3
libpve-access-control: 6.1-1
libpve-apiclient-perl: 3.0-3
libpve-common-perl: 6.1-2
libpve-guest-common-perl: 3.0-10
libpve-http-server-perl: 3.0-5
libpve-storage-perl: 6.1-7
libqb0: 1.0.5-1
libspice-server1: 0.14.2-4~pve6+1
lvm2: 2.03.02-pve4
lxc-pve: 4.0.2-1
lxcfs: 4.0.3-pve2
novnc-pve: 1.1.0-1
proxmox-mini-journalreader: 1.1-1
proxmox-widget-toolkit: 2.2-1
pve-cluster: 6.1-8
pve-container: 3.1-5
pve-docs: 6.2-4
pve-edk2-firmware: 2.20200229-1
pve-firewall: 4.1-2
pve-firmware: 3.1-1
pve-ha-manager: 3.0-9
pve-i18n: 2.1-2
pve-qemu-kvm: 5.0.0-2
pve-xtermjs: 4.3.0-1
qemu-server: 6.2-2
smartmontools: 7.1-pve2
spiceterm: 3.1-1
vncterm: 1.6-1
zfsutils-linux: 0.8.3-pve1

and here are the outputs from pve (10.1.1.10, the node I was trying to join the cluster):

Code:

root@pve:~# cat /etc/network/interfaces
# network interface settings; autogenerated
# Please do NOT modify this file directly, unless you know what
# you're doing.
#
# If you want to manage parts of the network configuration manually,
# please utilize the 'source' or 'source-directory' directives to do
# so.
# PVE will preserve these directives, but will NOT read its network
# configuration from sourced files, so do not attempt to move any of
# the PVE managed interfaces into external files!

auto lo
iface lo inet loopback

iface eno1 inet manual

iface eno2 inet manual

auto vmbr0
iface vmbr0 inet static
        address 10.1.1.10/24
        gateway 10.1.1.1
        bridge-ports eno1
        bridge-stp off
        bridge-fd 0

Code:

root@pve:~# pveversion -v
proxmox-ve: 6.2-1 (running kernel: 5.4.34-1-pve)
pve-manager: 6.2-4 (running version: 6.2-4/9824574a)
pve-kernel-5.4: 6.2-1
pve-kernel-helper: 6.2-1
pve-kernel-5.4.34-1-pve: 5.4.34-2
ceph-fuse: 12.2.11+dfsg1-2.1+b1
corosync: 3.0.3-pve1
criu: 3.11-3
glusterfs-client: 5.5-3
ifupdown: 0.8.35+pve1
ksm-control-daemon: 1.3-1
libjs-extjs: 6.0.1-10
libknet1: 1.15-pve1
libproxmox-acme-perl: 1.0.3
libpve-access-control: 6.1-1
libpve-apiclient-perl: 3.0-3
libpve-common-perl: 6.1-2
libpve-guest-common-perl: 3.0-10
libpve-http-server-perl: 3.0-5
libpve-storage-perl: 6.1-7
libqb0: 1.0.5-1
libspice-server1: 0.14.2-4~pve6+1
lvm2: 2.03.02-pve4
lxc-pve: 4.0.2-1
lxcfs: 4.0.3-pve2
novnc-pve: 1.1.0-1
proxmox-mini-journalreader: 1.1-1
proxmox-widget-toolkit: 2.2-1
pve-cluster: 6.1-8
pve-container: 3.1-5
pve-docs: 6.2-4
pve-edk2-firmware: 2.20200229-1
pve-firewall: 4.1-2
pve-firmware: 3.1-1
pve-ha-manager: 3.0-9
pve-i18n: 2.1-2
pve-qemu-kvm: 5.0.0-2
pve-xtermjs: 4.3.0-1
qemu-server: 6.2-2
smartmontools: 7.1-pve2
spiceterm: 3.1-1
vncterm: 1.6-1
zfsutils-linux: 0.8.3-pve1

Moayad · Nov 24, 2020

Hi,

Please post output of cat /etc/hosts on both node, and consider to upgrade your PVE nodes to the current version.

davi_sehn · Nov 24, 2020

Hi, here's the output from pve2:

Code:

root@pve2:~# cat /etc/hosts
127.0.0.1 localhost.localdomain localhost
10.1.1.175 pve2.gpssat.com.br pve2

# The following lines are desirable for IPv6 capable hosts

::1     ip6-localhost ip6-loopback
fe00::0 ip6-localnet
ff00::0 ip6-mcastprefix
ff02::1 ip6-allnodes
ff02::2 ip6-allrouters
ff02::3 ip6-allhosts

and here's the output from pve:

Code:

root@pve:~# cat /etc/hosts
127.0.0.1 localhost.localdomain localhost
10.1.1.174 pve.gpssat.com.br pve

# The following lines are desirable for IPv6 capable hosts

::1     ip6-localhost ip6-loopback
fe00::0 ip6-localnet
ff00::0 ip6-mcastprefix
ff02::1 ip6-allnodes
ff02::2 ip6-allrouters
ff02::3 ip6-allhosts

I just upgraded both nodes, as you said. Now they're on version 6.2-15.

Moayad · Nov 25, 2020

Is not possible to change IP or hostname after the create the cluster see here. [1]

[1] https://pve.proxmox.com/pve-docs/chapter-pvecm.html#_preparing_nodes

Moayad · Nov 25, 2020

davi_sehn said:
address 10.1.1.12/24

Also you have changed IP only in hosts file.

davi_sehn · Nov 25, 2020

But I didn't change the IPs. Nor did my superior. Is it something that can occur automatically??

Should I change the 10.1.1.174 and 10.1.1.175 IPs on /etc/hosts to the original IPs, respectively, to 10.1.1.10 and 10.1.1.12?

Edit: I think the IPs changed because of the DNS service, but I'm not sure.

Moayad · Nov 26, 2020

davi_sehn said:
Should I change the 10.1.1.174 and 10.1.1.175 IPs on /etc/hosts to the original IPs, respectively, to 10.1.1.10 and 10.1.1.12?

Yes IPs in /etc/hosts file should be same original IP, so please edit your /etc/hosts file and change to 10.1.1.10 and 10.1.1.12.
afterwards do hostname --ip to be sure that your IP has changed.

davi_sehn · Nov 26, 2020

Yes, it worked. Thanks man, you helped me a lot, I'm very grateful!

Moayad · Nov 27, 2020

Glad to help!

Please mark the thread as [SOLVED] to help other people who have the same issue Thanks!

have a nice weekend

davi_sehn · Nov 27, 2020

I've just marked it! Thanks again! Have a great weekend

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[SOLVED] Wrong IP when adding a node to a cluster

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