[OpenSIPS-Users] RabbitMQ Timer Route Not Working

[Kneeoh]

Is there an unsubscribe option? I'm going to try removing haproxy and just let the vip be shared among the rabbit cluster nodes and see if that tricks it.



On Tuesday, June 10, 2014 9:01 AM, Răzvan Crainea <razvan at opensips.org> wrote:
Hi, Kneeoh!

I think that the only solution that would work properly was your first 
approach. However, since this is not yet implemented, all I can think of 
is an external process that periodically test if the node is up. If it 
is not, unsubscribe it and re-subscribe the second node.

PS: I haven't really used haproxy so I have no idea how it works.

Best regards,

Razvan Crainea
OpenSIPS Core Developer
http://www.opensips-solutions.com




On 06/06/2014 06:15 PM, Kneeoh wrote:
> Hi Razvan, thank you for the reply. I don't necessarily need expiration of subscriptions to rabbit or the timer route per se. I'm just trying to figure out (with the existing capabilities) how to make opensips fail to another member in the rabbit cluster in the event that the current node dies. My first thought was that you could simply stack entry points like:
>
> subscribe_event("E_ACC_CDR", "rabbitmq:rabbitmq:rabbit at 192.168.2.30;rabbitmq:rabbit at 192.168.2.31;rabbitmq:rabbit at 192.168.2.33/cdr1")
>
> However, it sounds like that's not in the present implementation of the rabbit module.
>
> So my second thought was to trick opensips and put HAProxy between it and Rabbit, which works, but if I fail an HAProxy via corosync to the other HAproxy something with the subscription breaks. Since it looked like the two options were either put the subscribes in the startup route (only happens once so probably won't failover) OR use the timer route to subscribe (which is what i'm doing) I figured that in the event of an HAProxy failure, I might miss a few messages but on the next timer fire opensips would resubscribe to haproxy which would relay that to the appropriate rabbit server (I haven't failed over any rabbit servers in this scenario so haproxy2 is talking to the same rabbit server as haproxy1. All i'm doing is killing haproxy1 right now and letting the VIP go to haproxy2). However it doesn't look like this is working and I can't tell if its because the subscription isn't happening, OR it is happening but opensips sees it already exists in the
>   subscribers list and does nothing (I think this is the case). If this IS the case perhaps a solution would be to kill the subscriber entry on new subscribe. If I'm way off, let me know, I'd really like to figure this out. Am I going about this all wrong? How would you handle a rabbit node failure?
>
> Regards
>