[Users] how to refresh REGISTER state when restarting redundant proxy
andreas.granig at inode.info
Mon Apr 23 10:24:58 CEST 2007
Juha Heinanen wrote:
> Christian Schlatter writes:
> > What issues are you referring to? We are using openser together with a
> > mysql 5.0 cluster for quite some time and never had any issues.
> how do you upgrade your openser tables when new fields are
> added/removed, which happens on every new release?
We use a combination of mysql cluster 5.0.x for the location table and
master/slave replication for everything else for over a year now.
Altering the cluster table is basically done by:
- disabling all except one node at the SIP load balancer and stop mysql
on the disabled nodes
- putting the remaining active node into single-user-mode
- altering the table on this node
- exiting single-user-mode
- putting back the deactivated nodes into the system
You have to schedule that to a time of day where one proxy/registrar can
handle all the traffic, but beside that it works quite smoothly...
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