[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-users] multiple streaming servers in a xen cloud
Simons thanks for detailed reply I here is the information you requested quotes from your messages On Mon, Aug 9, 2010 at 3:05 PM, Simon Billis <simon@xxxxxxxxxx> wrote: > Hi, >> I have multiple video streaming servers running on some virtual >> machines running on Xen. >> >> For different subdomains. >> i.e. >> site1.mydomain.com >> site2.mydomain.com >> site3.mydomain.com >> site4.mydomain.com > > I assume that these different sites are streaming different content and do > not need to be load balanced or HA. Yes very correct. >> The front end to the world is apache2 on Dom0 > > This is not recommended, you would be better off creating another DomU and > having apache in there. I am not clear with this point. The Dom0 has public IP so you mean to say I create another guest which would have my public IP. >> To be able to reach the streaming server I >> embed a javascript in HTML pages >> as follows >> Code: >> >> <embed ..... >> var="rtmp://site1.my_domain.com" >> >> the problem is the website are many >> >> site1.mydomain.com >> site2.mydomain.com >> site3.mydomain.com >> site4.mydomain.com >> >> each on a separate virtual machine. > > This is the important bit - If each machine is a different DomU and you have > setup the networking in such a fashion that each DomU has its own IP address > then nothing has to be done to the url to make this work >. You don't even > have to change the listening port on the streaming servers. Each DomU has its own IP but these are known to machines on my LAN. Meaning in a subnet of Class C 192.168.1.2 to 192.168.1.5 are DomU IPs and Dom0 IP is 192.168.1.1 also Dom0 has a public IP. >> Each of these four have their own streaming servers the front end to >> each of these four is apache running on Dom0. > > This is one instance of apache with either a number of virtual hosts or a > single host with a, for example, single page with the different urls on it. > Each Virtual Machine has an Apache vhost on it. And on Dom0 I have separate vhosts running which use Reverse Proxy to reach the virtual hosts on guest machines. i.e. for DomU 1 at Dom0 the vhost is <VirtualHost *:80> ServerName site1.mydomain.com ProxyPass / http://domU1 ProxyPassReverse / http://domU1 </VirtualHost > and the virtual host at DomU 1 is <VirtualHost *:80> ServerName site1.mydomain.com DocumentRoot /var/www ..... ...rest of the stuff </VirtualHost > >> If I run rtmp on each of the subdomains (the virtual machines) at a >> different port >> >> how will I make sure >> a request such as >> >> rtmp://site1.mydomain.com >> rtmp://site2.mydomain.com >> >> goes to their respective servers. >> from the front end server from Dom0. For some time leave this part of question let us run all the rtmp server on 1935 only. > The simplest thing to do is either ensure that the DomU's containing the > streaming servers are on different IP addresses I am using different IP (but they are only available on LAN) to internet the end user does not even know that he got served via Different Virtual Machines. > and then you can use those > urls for the specific DomU without change, or if you really want to have > different ports then specify the port in the url such as: > rtmp://site1.mydomain.com:8888 where 8888 is the port that the streaming > server is listening on. Not very clear about this one. > >> What do I need to handle in this case ? >> >> IPTABLES came to mind instantly but from the client browser on >> internet when some one requests >> rtmp://site1.mydomain.com >> >> how will I make sure this rtmp request is mapped to a port different >> than >> 1935 as there are three other streaming servers which are also to >> respond to their respective requests Well I want the requests coming at 1935 for rtmp protocol based on host names be served via different virtual machines.(which have different domains to server) >> For handling HTTP requests in this case I use Apache Reverse Proxy >> but for rtmp requests I am not clear as which direction to proceed. >> > > In general, try to keep it simple, the above can work, but is difficult to > implement and maintain. It requires an good knowledge and understanding of > iptables and Squid in each case. Well all this is for a learning experience so let me know, I know how to set up IPTABLE and Squid. What else is needed. > If you provide some specific information on the networking side of the > DomU's then I might be able to be more specific. DomU1 192.168.1.2 DomU2 192.168.1.3 DomU3 192.168.1.4 DomU4 192.168.1.5 Dom0 is 192.168.1.1 > Rgds > > Simon. > > > Let me know if you need any more information. -- Tapas http://mightydreams.blogspot.com http://wiki.xensource.com/xenwiki/Xen_on_4_app_servers _______________________________________________ Xen-users mailing list Xen-users@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-users
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