[SOLVED] How to fix corosync Retransmit list ?

L

lazypaul

Member
Aug 20, 2020
47
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2 of my nodes have this showing in syslog

Code: 
Sep 16 15:38:17 backupkvm01 corosync[2184]:   [TOTEM ] Retransmit List: 1a
Sep 16 15:38:17 backupkvm01 corosync[2184]:   [TOTEM ] Retransmit List: 1b
Sep 16 15:38:17 backupkvm01 corosync[2184]:   [TOTEM ] Retransmit List: 21 22 23
Sep 16 15:38:17 backupkvm01 corosync[2184]:   [TOTEM ] Retransmit List: 34
Sep 16 15:38:17 backupkvm01 corosync[2184]:   [TOTEM ] Retransmit List: 35
Sep 16 15:38:17 backupkvm01 corosync[2184]:   [TOTEM ] Retransmit List: 36
Sep 16 15:38:18 backupkvm01 corosync[2184]:   [KNET  ] rx: host: 5 link: 1 is up
Sep 16 15:38:18 backupkvm01 corosync[2184]:   [KNET  ] host: host: 5 (passive) best link: 1 (pri: 15)
Sep 16 15:38:18 backupkvm01 corosync[2184]:   [KNET  ] rx: host: 4 link: 1 is up
Sep 16 15:38:18 backupkvm01 corosync[2184]:   [KNET  ] host: host: 4 (passive) best link: 1 (pri: 15)
Sep 16 15:38:18 backupkvm01 corosync[2184]:   [KNET  ] rx: host: 3 link: 1 is up
Sep 16 15:38:18 backupkvm01 corosync[2184]:   [KNET  ] rx: host: 2 link: 1 is up
Sep 16 15:38:18 backupkvm01 corosync[2184]:   [KNET  ] host: host: 3 (passive) best link: 1 (pri: 15)
Sep 16 15:38:18 backupkvm01 corosync[2184]:   [KNET  ] host: host: 2 (passive) best link: 1 (pri: 15)
Sep 16 15:38:18 backupkvm01 corosync[2184]:   [TOTEM ] Retransmit List: 3b
Sep 16 15:38:18 backupkvm01 corosync[2184]:   [KNET  ] pmtud: PMTUD link change for host: 5 link: 1 from 469 to 1397
Sep 16 15:38:18 backupkvm01 corosync[2184]:   [KNET  ] pmtud: PMTUD link change for host: 4 link: 1 from 469 to 1397
Sep 16 15:38:18 backupkvm01 corosync[2184]:   [KNET  ] pmtud: PMTUD link change for host: 3 link: 1 from 469 to 1397
Sep 16 15:38:18 backupkvm01 corosync[2184]:   [KNET  ] pmtud: PMTUD link change for host: 2 link: 1 from 469 to 1397
Sep 16 15:38:18 backupkvm01 corosync[2184]:   [TOTEM ] Retransmit List: 3c
Sep 16 15:38:18 backupkvm01 corosync[2184]:   [TOTEM ] Retransmit List: 3d
Sep 16 15:38:18 backupkvm01 corosync[2184]:   [TOTEM ] Retransmit List: 3e
Sep 16 15:38:18 backupkvm01 corosync[2184]:   [TOTEM ] Retransmit List: 3f
Sep 16 15:38:18 backupkvm01 corosync[2184]:   [TOTEM ] Retransmit List: 41
Sep 16 15:38:18 backupkvm01 corosync[2184]:   [TOTEM ] Retransmit List: 42
Sep 16 15:38:18 backupkvm01 corosync[2184]:   [TOTEM ] Retransmit List: 44
Sep 16 15:38:18 backupkvm01 corosync[2184]:   [TOTEM ] Retransmit List: 46
Sep 16 15:38:22 backupkvm01 corosync[2184]:   [TOTEM ] Retransmit List: 5f
Sep 16 15:38:22 backupkvm01 corosync[2184]:   [TOTEM ] Retransmit List: 60
Sep 16 15:38:22 backupkvm01 corosync[2184]:   [TOTEM ] Retransmit List: 61
Sep 16 15:38:27 backupkvm01 corosync[2184]:   [TOTEM ] Retransmit List: 74
Sep 16 15:38:27 backupkvm01 corosync[2184]:   [TOTEM ] Retransmit List: 75
Sep 16 15:38:27 backupkvm01 corosync[2184]:   [TOTEM ] Retransmit List: 76
Sep 16 15:38:28 backupkvm01 corosync[2184]:   [TOTEM ] Retransmit List: 7f
Sep 16 15:38:28 backupkvm01 corosync[2184]:   [TOTEM ] Retransmit List: 80


My corosync.conf

Code: 
root@backupkvm01:~/pvetools# cat /etc/pve/corosync.conf
logging {
  debug: off
  to_syslog: yes
}

nodelist {
  node {
    name: backupkvm01
    nodeid: 1
    quorum_votes: 1
    ring0_addr: 10.0.142.1
    ring1_addr: 192.168.142.1
  }
  node {
    name: backupkvm02
    nodeid: 2
    quorum_votes: 1
    ring0_addr: 10.0.142.2
    ring1_addr: 192.168.142.2
  }
  node {
    name: backupkvm03
    nodeid: 3
    quorum_votes: 1
    ring0_addr: 10.0.142.3
    ring1_addr: 192.168.142.3
  }
  node {
    name: backupkvm04
    nodeid: 4
    quorum_votes: 1
    ring0_addr: 10.0.142.4
    ring1_addr: 192.168.142.4
  }
  node {
    name: backupkvm05
    nodeid: 5
    quorum_votes: 1
    ring0_addr: 10.0.142.5
    ring1_addr: 192.168.142.5
  }
}

quorum {
  provider: corosync_votequorum
}

totem {
  cluster_name: BackupKvm
  config_version: 26
  interface {
    knet_link_priority: 10
    linknumber: 0
    ringnumber: 0
  }
  interface {
    knet_link_priority: 15
    linknumber: 1
    ringnumber: 1
  }
  ip_version: ipv4-6
  link_mode: passive
  secauth: on
  version: 2
}
 
Hi,

this normally happens if the network is not reliable.
Check your network and check the syslog for nic errors.
 
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