Hello,you cannot change the redis server attributes on the fly, but you can define many redis servers and based on the name attribute query a specific one. So if you define two, you can do round robin queries to both of them, by using a shared variable $shv(...) to know which one was used last time. In the same way, since $sht(...) can be changed via MI, you can query either first redis or second one, based on the value of $sht(). In this way you can build some failover solution just in config file of kamailio.
On 11/14/11 3:24 PM, Javier Gallart wrote:Hello
very interesting issue actually...the mtree module fits perfectly well in a key-value model becaue basically is what the mtree table structure defines; that's why redis was the first thing that came to my mind when I saw the redis module. Two problems with redis:-no "native" mt_match function, up to the user to find the best option-replication. Until the cluster feature is ready, we need to change by hand the server ip address, which implies a kamailio restart. There is no mi command for changing the server in the fly, right..(not in the module documentation at least)?
Cheers,
Daniel
Daniel, I agree that your suggestion about the mi/rpc method would be nice. I will also take a look at Mongo as Douglas suggests, and especially CouchDB, because you can talk to Couch DB via http...
Regards
Javi
On Mon, Nov 14, 2011 at 1:32 PM, Douglas Hubler <douglas@hubler.us> wrote:
On Mon, Nov 14, 2011 at 5:10 AM, Daniel-Constantin Mierlamongodb will auto promote. Caveat, (like redis if i understand
<miconda@gmail.com> wrote:
> are there any other no-sql database systems that have such mechanism? Might
> not be hard to make a connector when the time will allow -- just to know the
> best options here.
correctly), is that all writes are directed to a single master (be it
chosen dynamically), but reads can happen anywhere to spread the load.
Also, you need to accept the distaster scenario of a "network
partition" where a minority set of servers find themselves w/o a
master. Example: 5 servers in datacenter #1 and 4 servers in
datacenter #2. If the link between datacenters is broken, then all
servers in datacenter #2 will not have a master and will be read-only
until link is restored. Good part about single master is there's no
chance of inconsistent data.
Turns out local fail-over v.s. consistent data is a well explored area.
http://blog.nahurst.com/visual-guide-to-nosql-systems
I've worked w/the C++ driver to mongodb is anyone has questions.
_______________________________________________ SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list sr-users@lists.sip-router.org http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users-- Daniel-Constantin Mierla -- http://www.asipto.com Kamailio Advanced Training, Dec 5-8, Berlin: http://asipto.com/u/kat http://linkedin.com/in/miconda -- http://twitter.com/miconda