[Pacemaker] Multicast pitfalls? corosync [TOTEM ] Retransmit List:

Thu Feb 13 17:53:53 UTC 2014

Corosync configuration is ok, can you use tcpdump for check connection ?

Bye
Walter

From: Beo Banks [mailto:beo.banks at googlemail.com]
Sent: giovedì 13 febbraio 2014 18:32
To: The Pacemaker cluster resource manager
Subject: Re: [Pacemaker] Multicast pitfalls? corosync [TOTEM ] Retransmit List:

here you are

i have add 2 lines windows_size and i switch from active to passive.
but both options doen st solve the issue :(

compatibility: whitetank
totem {
 version: 2
 secauth: on
 threads: 0
 token: 10000
 token_retransmits_before_loss_const: 10
 # How long to wait for join messages in the membership protocol (ms)
        join: 60
 rrp_mode: passive
        # Turn off the virtual synchrony filter
        vsftype: none
        # Number of messages that may be sent by one processor on receipt of the
        max_messages: 20
 # Limit generated nodeids to 31-bits (positive signed integers)
        clear_node_high_bit: yes
 windows_size: 100
 # issue with multicast
 interface {
  ringnumber: 0
  bindnetaddr: 10.0.0.0
  mcastaddr: 226.94.1.1
  mcastport: 5405
  ttl: 1
 }
 interface {
  ringnumber: 1
  bindnetaddr: 172.XX.XX.0
  mcastaddr: 227.94.1.2
  mcastport: 5405
  ttl: 1
 }

}
amf {
 mode: disabled
}
logging {
 fileline: off
 to_stderr: no
 to_logfile: yes
 to_syslog: yes
 logfile: /var/log/cluster/corosync.log
 debug: off
 timestamp: on
 logger_subsys {
  subsys: AMF
  debug: off
  tags: enter|leave|trace1|trace2|trace3|trace4|trace6
 }
}

thanks walter...

2014-02-13 18:17 GMT+01:00 <walter.pisani at erptech.it<mailto:walter.pisani at erptech.it>>:
Can you post /etc/corosync/corosync.conf ?

Thanks
Walter

From: Beo Banks [mailto:beo.banks at googlemail.com<mailto:beo.banks at googlemail.com>]
Sent: giovedì 13 febbraio 2014 18:01
To: The Pacemaker cluster resource manager
Subject: Re: [Pacemaker] Multicast pitfalls? corosync [TOTEM ] Retransmit List:

hi thanks...for your help.

i have two node cluster
both node are running on seperate hosts.

the 2x hosts have 2 nic's ....eth0 is 172.XXX...whatever and eth1 is direct connection (crossover cable) between the hosts.

the issue must be my kvm host,or?

2014-02-13 17:40 GMT+01:00 <walter.pisani at erptech.it<mailto:walter.pisani at erptech.it>>:
Hi,

Check if your switch support multicat, however you can use unicast.

Bye
Walter

From: Beo Banks [mailto:beo.banks at googlemail.com<mailto:beo.banks at googlemail.com>]
Sent: giovedì 13 febbraio 2014 17:22
To: pacemaker at oss.clusterlabs.org<mailto:pacemaker at oss.clusterlabs.org>
Subject: [Pacemaker] Multicast pitfalls? corosync [TOTEM ] Retransmit List:

Hi,

i have a fresh 2 node cluster (kvm host1 -> guest = nodeA | kvm host2 -> guest = NodeB) and it seems to work but from time to time i have a lot of errors like

Feb 13 13:41:04 corosync [TOTEM ] Retransmit List: 196 198 184 185 186 187 188 189 18a 18b 18c 18d 18e 18f 190 191 192 193 194 195 197 199
Feb 13 13:41:04 corosync [TOTEM ] Retransmit List: 197 199 184 185 186 187 188 189 18a 18b 18c 18d 18e 18f 190 191 192 193 194 195 196 198
Feb 13 13:41:04 corosync [TOTEM ] Retransmit List: 196 198 184 185 186 187 188 189 18a 18b 18c 18d 18e 18f 190 191 192 193 194 195 197 199
Feb 13 13:41:04 corosync [TOTEM ] Retransmit List: 197 199 184 185 186 187 188 189 18a 18b 18c 18d 18e 18f 190 191 192 193 194 195 196 198
Feb 13 13:41:04 corosync [TOTEM ] Retransmit List: 196 198 184 185 186 187 188 189 18a 18b 18c 18d 18e 18f 190 191 192 193 194 195 197 199
Feb 13 13:41:04 corosync [TOTEM ] Retransmit List: 197 199 184 185 186 187 188 189 18a 18b 18c 18d 18e 18f 190 191 192 193 194 195 196 198
i used the newest rhel 6.5 version.

i have also already try solve the issue with
echo 1 > /sys/class/net/virbr0/bridge/multicast_querier (host system)
but no chance...

i have disable iptables,selinux..same issue

how can solve it?

thanks beo

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