I don't think you ever said what OS you have. I've never had to set
anything in sysctl.conf on RHEL/CentOS 6. Did you try disabling RRP
entirely? If you have a managed switch, make sure persistent multicast
groups are enabled or try a different switch entirely.
*Something* is interrupting your network traffic. What does
iptables-save show? Are these physical or virtual machines?
The more information about your environment that you can share, the
better we can help.
On 23/11/13 22:29, Slava Bendersky wrote:
> Hello Digimer,
> As an idea, might be some settings in sysctl.conf ?
>
> Slava.
>
>
> ------------------------------------------------------------------------
> *From: *"Slava Bendersky" <volga629@xxxxxxxxxxxxx>
> *To: *"Digimer" <lists@xxxxxxxxxx>
> *Cc: *discuss@xxxxxxxxxxxx
> *Sent: *Saturday, November 23, 2013 10:27:22 PM
> *Subject: *Re: information request
>
> Hello Digimer,
> Yes I set to passive and selinux is disabled
>
> [root@eusipgw01 ~]# sestatus
> SELinux status: disabled
> [root@eusipgw01 ~]# cat /etc/corosync/corosync.conf
> totem {
> version: 2
> token: 160
> token_retransmits_before_loss_const: 3
> join: 250
> consensus: 300
> vsftype: none
> max_messages: 20
> threads: 0
> nodeid: 2
> rrp_mode: passive
> interface {
> ringnumber: 0
> bindnetaddr: 10.10.10.0
> mcastaddr: 226.94.1.1
> mcastport: 5405
> }
> }
>
> logging {
> fileline: off
> to_stderr: yes
> to_logfile: yes
> to_syslog: off
> logfile: /var/log/cluster/corosync.log
> debug: off
> timestamp: on
> logger_subsys {
> subsys: AMF
> debug: off
> }
> }
>
>
> Slava.
>
> ------------------------------------------------------------------------
> *From: *"Digimer" <lists@xxxxxxxxxx>
> *To: *"Slava Bendersky" <volga629@xxxxxxxxxxxxx>
> *Cc: *"Steven Dake" <sdake@xxxxxxxxxx>, discuss@xxxxxxxxxxxx
> *Sent: *Saturday, November 23, 2013 7:04:43 PM
> *Subject: *Re: information request
>
> First up, I'm not Steven. Secondly, did you follow Steven's
> recommendation to not use active RRP? Does the cluster form with no RRP
> at all? Is selinux enabled?
>
> On 23/11/13 18:29, Slava Bendersky wrote:
>> Hello Steven,
>> In multicast it log filling with this message
>>
>> Nov 24 00:26:28 corosync [TOTEM ] A processor failed, forming new
>> configuration.
>> Nov 24 00:26:28 corosync [TOTEM ] A processor joined or left the
>> membership and a new membership was formed.
>> Nov 24 00:26:31 corosync [CPG ] chosen downlist: sender r(0)
>> ip(10.10.10.1) ; members(old:2 left:0)
>> Nov 24 00:26:31 corosync [MAIN ] Completed service synchronization,
>> ready to provide service.
>>
>> In uudp it not working at all.
>>
>> Slava.
>>
>>
>> ------------------------------------------------------------------------
>> *From: *"Digimer" <lists@xxxxxxxxxx>
>> *To: *"Slava Bendersky" <volga629@xxxxxxxxxxxxx>
>> *Cc: *"Steven Dake" <sdake@xxxxxxxxxx>, discuss@xxxxxxxxxxxx
>> *Sent: *Saturday, November 23, 2013 6:05:56 PM
>> *Subject: *Re: information request
>>
>> So multicast works with the firewall disabled?
>>
>> On 23/11/13 17:28, Slava Bendersky wrote:
>>> Hello Steven,
>>> I disabled iptables and no difference, error message the same, but at
>>> least in multicast is wasn't generate the error.
>>>
>>>
>>> Slava.
>>>
>>> ------------------------------------------------------------------------
>>> *From: *"Digimer" <lists@xxxxxxxxxx>
>>> *To: *"Slava Bendersky" <volga629@xxxxxxxxxxxxx>, "Steven Dake"
>>> <sdake@xxxxxxxxxx>
>>> *Cc: *discuss@xxxxxxxxxxxx
>>> *Sent: *Saturday, November 23, 2013 4:37:36 PM
>>> *Subject: *Re: information request
>>>
>>> Does either mcast or unicast work if you disable the firewall? If so,
>>> then at least you know for sure that iptables is the problem.
>>>
>>> The link here shows the iptables rules I use (for corosync in mcast and
>>> other apps):
>>>
>>> https://alteeve.ca/w/AN!Cluster_Tutorial_2#Configuring_iptables
>>>
>>> digimer
>>>
>>> On 23/11/13 16:12, Slava Bendersky wrote:
>>>> Hello Steven,
>>>> Than what I see when setup through UDPU
>>>>
>>>> Nov 23 22:08:13 corosync [MAIN ] Compatibility mode set to whitetank.
>>>> Using V1 and V2 of the synchronization engine.
>>>> Nov 23 22:08:13 corosync [TOTEM ] adding new UDPU member {10.10.10.1}
>>>> Nov 23 22:08:16 corosync [MAIN ] Totem is unable to form a cluster
>>>> because of an operating system or network fault. The most common cause
>>>> of this message is that the local firewall is configured improperly.
>>>>
>>>>
>>>> Might be missing some firewall rules ? I allowed unicast.
>>>>
>>>> Slava.
>>>>
>>>> ------------------------------------------------------------------------
>>>> *From: *"Steven Dake" <sdake@xxxxxxxxxx>
>>>> *To: *"Slava Bendersky" <volga629@xxxxxxxxxxxxx>
>>>> *Cc: *discuss@xxxxxxxxxxxx
>>>> *Sent: *Saturday, November 23, 2013 10:33:31 AM
>>>> *Subject: *Re: information request
>>>>
>>>>
>>>> On 11/23/2013 08:23 AM, Slava Bendersky wrote:
>>>>
>>>> Hello Steven,
>>>>
>>>> My setup
>>>>
>>>> 10.10.10.1 primary server -----EoIP tunnel vpn ipsec ----- dr server
>>>> 10.10.10.2
>>>>
>>>> On both servers is 2 interfaces eth0 which default gw out and eth1
>>>> where corosync live.
>>>>
>>>> Iptables:
>>>>
>>>> -A INPUT -i eth1 -p udp -m state --state NEW -m udp --dport
> 5404:5407
>>>> -A INPUT -i eth1 -m pkttype --pkt-type multicast
>>>> -A INPUT -i eth1 -p igmp
>>>>
>>>>
>>>> Corosync.conf
>>>>
>>>> totem {
>>>> version: 2
>>>> token: 160
>>>> token_retransmits_before_loss_const: 3
>>>> join: 250
>>>> consensus: 300
>>>> vsftype: none
>>>> max_messages: 20
>>>> threads: 0
>>>> nodeid: 2
>>>> rrp_mode: active
>>>> interface {
>>>> ringnumber: 0
>>>> bindnetaddr: 10.10.10.0
>>>> mcastaddr: 226.94.1.1
>>>> mcastport: 5405
>>>> }
>>>> }
>>>>
>>>> Join message
>>>>
>>>> [root@eusipgw01 ~]# corosync-objctl | grep member
>>>> runtime.totem.pg.mrp.srp.members.2.ip=r(0) ip(10.10.10.2)
>>>> runtime.totem.pg.mrp.srp.members.2.join_count=1
>>>> runtime.totem.pg.mrp.srp.members.2.status=joined
>>>> runtime.totem.pg.mrp.srp.members.1.ip=r(0) ip(10.10.10.1)
>>>> runtime.totem.pg.mrp.srp.members.1.join_count=254
>>>> runtime.totem.pg.mrp.srp.members.1.status=joined
>>>>
>>>> Is it possible that ping sends out of wrong interface ?
>>>>
>>>> Slava,
>>>>
>>>> I wouldn't expect so.
>>>>
>>>> Which version?
>>>>
>>>> Have you tried udpu instead? If not, it is preferable to multicast
>>>> unless you want absolute performance on cpg groups. In most cases the
>>>> performance difference is very small and not worth the trouble of
>>>> setting up multicast in your network.
>>>>
>>>> Fabio had indicated rrp active mode is broken. I don't know the
>>>> details, but try passive RRP - it is actually better then active
>> IMNSHO :)
>>>>
>>>> Regards
>>>> -steve
>>>>
>>>> Slava.
>>>>
>>>>
>>> ------------------------------------------------------------------------
>>>> *From: *"Steven Dake" <sdake@xxxxxxxxxx>
>>>> *To: *"Slava Bendersky" <volga629@xxxxxxxxxxxxx>,
>> discuss@xxxxxxxxxxxx
>>>> *Sent: *Saturday, November 23, 2013 6:01:11 AM
>>>> *Subject: *Re: information request
>>>>
>>>>
>>>> On 11/23/2013 12:29 AM, Slava Bendersky wrote:
>>>>
>>>> Hello Everyone,
>>>> Corosync run on box with 2 Ethernet interfaces.
>>>> I am getting this message
>>>> CPG mcast failed (6)
>>>>
>>>> Any information thank you in advance.
>>>>
>>>>
>>>>
>>>>
>>>
>>
> https://github.com/corosync/corosync/blob/master/include/corosync/corotypes.h#L84
>>>>
>>>> This can occur because:
>>>> a) firewall is enabled - there should be something in the logs
>>>> telling you to properly configure the firewall
>>>> b) a config change is in progress - this is a normal response, and
>>>> you should try the request again
>>>> c) a bug in the synchronization code is resulting in a blocked
>>>> unsynced cluster
>>>>
>>>> c is very unlikely at this point.
>>>>
>>>> 2 ethernet interfaces = rrp mode, bonding, or something else?
>>>>
>>>> Digimer needs moar infos :)
>>>>
>>>> Regards
>>>> -steve
>>>>
>>>>
>>>>
>>>> _______________________________________________
>>>> discuss mailing list
>>>> discuss@xxxxxxxxxxxx
>>>> http://lists.corosync.org/mailman/listinfo/discuss
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>> _______________________________________________
>>>> discuss mailing list
>>>> discuss@xxxxxxxxxxxx
>>>> http://lists.corosync.org/mailman/listinfo/discuss
>>>>
>>>
>>>
>>> --
>>> Digimer
>>> Papers and Projects: https://alteeve.ca/w/
>>> What if the cure for cancer is trapped in the mind of a person without
>>> access to education?
>>>
>>
>>
>> --
>> Digimer
>> Papers and Projects: https://alteeve.ca/w/
>> What if the cure for cancer is trapped in the mind of a person without
>> access to education?
>>
>
>
> --
> Digimer
> Papers and Projects: https://alteeve.ca/w/
> What if the cure for cancer is trapped in the mind of a person without
> access to education?
>
>
> _______________________________________________
> discuss mailing list
> discuss@xxxxxxxxxxxx
> http://lists.corosync.org/mailman/listinfo/discuss
>
--
Digimer
Papers and Projects: https://alteeve.ca/w/
What if the cure for cancer is trapped in the mind of a person without
access to education?
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