[OpenSIPS-Users] Help!! How to do failover of mysql connection

[Uwe Kastens]

Hi,

As far as I know this problem is fixed in MySQL5 - but I am not sure
about ...

BR

Uwe

Brett Nemeroff schrieb:
> Before doing this, I'd seriously consider the problems associated with
> master-master replication. 
> 
> um, I don't know what they are.. but I know they are real problems. Such
> as collisions in auto-incrementing data.
> -Brett
> 
> 
> On Wed, Nov 26, 2008 at 3:06 PM, Uwe Kastens <kiste at kiste.org
> <mailto:kiste at kiste.org>> wrote:
> 
>     Hi Krunal,
> 
>     >
>     >     I am just on my way to implement the same. At the moment I am
>     planing a
>     >     kind of Mysql Master - Master together with one VIP for
>     >     Mysql-opensips-communication. So for your example you will have to
>     >     mysql-servers. opensips is connection to lets say to
>     192.168.1.4 <http://192.168.1.4>
>     >     <http://192.168.1.4/> which
>     >     points on one of your mysql-servers. You will need
>     active-active for
>     >     mysql since opensips will write some information in the
>     database as
>     >     well.
>     >
>     >
>     >
>     >      I am working with mysql-5 and heartbeat-2 in mode 1. Its nearly
>     >     working.
>     >
>     >
>     > Would you please explain it somewhat in detail?
> 
>     Sure, at the moment its only a testing platform. I took two
>     MySQL-Servers which are configured as master-master. So writing on both
>     databases is possible and is synchronized. I found a good step-by-step
>     guide under:
> 
>     http://www.howtoforge.com/mysql_master_master_replication
> 
>     I configured a very simple setup for heartbeat to share one VIP between
>     both servers for client connection. So a kind of mysql-test is needed to
>     check if the database is online on the "normal" IP-Adress. If not the
>     VIP should be switched to the other server. I found a kind of
>     nagios_mysql_check usefull.
> 
>     The openser-servers are connecting only to the vip address. Read and
>     Write are working on only one database. This should be enough for a
>     small environment.
> 
>     Why no master - slave? I found it to complicate to make a slave to a
>     master by skript.
> 
>     Why not the "normal" setup (drbd with mysql and heartbeat)? I looks to
>     complicated.
> 
>     But! I have no idea how it will work in a real world.
> 
>     BR
> 
>     kiste
>     --
> 
>     kiste lat: 54.322684, lon: 10.13586
> 
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> 
> 


-- 

kiste lat: 54.322684, lon: 10.13586