Tip

2 - Config

Example

totem {
  version: 2
  cluster_name: clusterName

  knet_transport: udp
  transport: knet

  # generate key: corosync-keygen -k /etc/corosync/authkey_clusterName
  # all nodes in the cluster must share the same key
  keyfile: /etc/corosync/authkey_clusterName
  crypto_cipher: aes256
  crypto_hash: sha256
  secauth: yes

  link_mode: passive
  # passive, active, rr
  netmtu: 1500
  ip_version: ipv4
  # ipv4, ipv6, ipv4-6

  interface {
    ringnumber: 0
    bindnetaddr: 192.168.1.0
    # network-address of subnet
    mcastport: 5405
    # +2 for next cluster
  }
  interface {
    ringnumber: 1
    bindnetaddr: 10.0.0.0
    # network-address of subnet
    mcastport: 5405
    # +2 for next cluster
  }

}

logging {
  # debugging
  debug: off
  fileline: off
  function_name: off
  #timestamp: hires

  to_stderr: yes
  to_syslog: yes
  syslog_facility: daemon
  syslog_priority: info
  # alert, crit, debug (same as debug = on), emerg, err, info, notice, warning

  logger_subsys {
    subsys: QUORUM
    debug: off
  }
}

quorum {
  provider: corosync_votequorum
}

nodelist {
  node {
    name: node1
    nodeid: 1
    ring0_addr: 192.168.1.1
    # private ip
    ring1_addr: 10.0.0.1
    # public ip
  }
  node {
    name: node2
    nodeid: 2
    ring0_addr: 192.168.1.2
    # private ip
    ring1_addr: 10.0.0.2
    # public ip
  }
}

system {}
nozzle {}

Testing

root@lha01:~# corosync -f
> parse error in config: ...

Starting

root@lha01:~# systemctl enable corosync.service
root@lha01:~# systemctl enable pacemaker.service
root@lha01:~# systemctl start corosync.service
root@lha01:~# systemctl start pacemaker.service

Checking

root@lha01:~# systemctl status corosync.service
> ● corosync.service - Corosync Cluster Engine
>      Loaded: loaded (/lib/systemd/system/corosync.service; enabled; vendor preset: enabled)
>      Active: active (running) since Sat 2023-04-01 16:30:46 CEST; 9min ago

root@lha01:~# systemctl status pacemaker.service
> ● pacemaker.service - Pacemaker High Availability Cluster Manager
>      Loaded: loaded (/lib/systemd/system/pacemaker.service; enabled; vendor preset: enabled)
>      Active: active (running) since Sat 2023-04-01 16:31:05 CEST; 9min ago

root@lha01:~# crm status
> Cluster Summary:
>   * Stack: corosync
>   * Current DC: lha02 (version 2.0.5-ba59be7122) - partition with quorum
>   * Last updated: Sat Apr  1 16:31:39 2023
>   * Last change:  Sat Apr  1 16:31:11 2023 by hacluster via crmd on lha02
>   * 2 nodes configured
>   * 0 resource instances configured
>
> Node List:
>   * Online: [ lha01 lha02 ]
>
> Full List of Resources:
>   * No resources