Corosync and multicast

[RobFantini]

Hello

per https://pve.proxmox.com/wiki/Multicast_notes#Using_omping this should show the multicast address on proxmox 4.X :

corosync-cmapctl -g totem.interface.0.mcastaddr

however I get this result:

# corosync-cmapctl -g totem.interface.0.mcastaddr
Can't get key totem.interface.0.mcastaddr. Error CS_ERR_NOT_EXIST

mcast related keys stored in the Corosync Cluster Configuration Map :

# corosync-cmapctl|  grep mcast
runtime.config.totem.rrp_problem_count_mcast_threshold (u32) = 100
runtime.totem.pg.mrp.srp.mcast_retx (u64) = 0
runtime.totem.pg.mrp.srp.mcast_rx (u64) = 847962
runtime.totem.pg.mrp.srp.mcast_tx (u64) = 349199

We're using a 3 node cluster .

I wonder if not having a totem.interface.0.mcastaddr key is a bug or something i set wrong?

 

[dietmar]

Please can you post the corosync.conf file?

 

[spirit]

I wonder if not having a totem.interface.0.mcastaddr key is a bug or something i set wrong?

On my test cluster, I see it on 1 node, but not others nodes. (cluster is working fine).

Edit:

It's working fine after upgrade to last pve-no-subscription packages. (The node where is was working was already upgraded)

 

[RobFantini]

Please can you post the corosync.conf file?

logging {
  debug: off
  to_syslog: yes
}

nodelist {
  node {
    name: sys4
    nodeid: 2
    quorum_votes: 1
    ring0_addr: sys4
  }

  node {
    name: sys3
    nodeid: 1
    quorum_votes: 1
    ring0_addr: sys3
  }

  node {
    name: dell1
    nodeid: 3
    quorum_votes: 1
    ring0_addr: dell1
  }

}

quorum {
  provider: corosync_votequorum
}

totem {
  cluster_name: cluster-v4
  config_version: 20
  ip_version: ipv4
  secauth: on
  version: 2
  interface {
    bindnetaddr: 10.1.10.181
    ringnumber: 0
  }

}

 

[Q-wulf]

you are using native linux-bridge and not OVS-Bridge right? Can't remember.
if using OVS - check https://pve.proxmox.com/wiki/Open_vSwitch for multicast notes.

 

[RobFantini]

upgrade to 4.1 fixed the issue here .. thanks.


maybe this will fix the red node issue ( https://forum.proxmox.com/threads/24671-Nodes-going-red** )

 

[RobFantini]

you are using native linux-bridge and not OVS-Bridge right? Can't remember.
if using OVS - check https://pve.proxmox.com/wiki/Open_vSwitch for multicast notes.

I use for example:

auto vmbr0
iface vmbr0 inet static
        address 10.1.xx.xx
        netmask 255.255.255.0
        gateway 10.1.xx.xx
        bridge_ports eth0
        bridge_stp off
        bridge_fd 0

 

[Q-wulf]

I use for example:

auto vmbr0
iface vmbr0 inet static
        address 10.1.xx.xx
        netmask 255.255.255.0
        gateway 10.1.xx.xx
        bridge_ports eth0
        bridge_stp off
        bridge_fd 0

That is native Linux bridges.
---
if you use OVS you have stuff like "ovs_type", "ovs_ports","ovs_bridge".
also your pveversion -v would list

openvswitch-switch: 2.3.2-2

Pretty sure you'd know if you use OVS. The reason i was asking is because OVS does not have have IGMP snooping (that is in 2.4) and you'd need such a querier on your hardware switches.

Tl;dr file this under informative but off topic