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| Discuss what's fucking going on, and which programs are best and worst. One-time "program" announcements from "established" webmasters are allowed. | 
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|  02-15-2005, 02:16 AM | #1 | 
| Confirmed User Join Date: Oct 2003 Location: Cyberspace 
					Posts: 2,662
				 | 
				
				Server clusters
			 anyone know where i can get information on how to cluster linux servers? is it even possible? | 
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|  02-15-2005, 02:20 AM | #2 | 
| Confirmed User Join Date: Mar 2004 
					Posts: 2,047
				 | ofcourse. You can do it via hardware or software. Hardware clustering will cost you good amount of money... Read up on Rsync. | 
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|  02-15-2005, 02:22 AM | #3 | |
| Confirmed User Join Date: Oct 2003 Location: Cyberspace 
					Posts: 2,662
				 | Quote: 
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|  02-15-2005, 02:41 AM | #4 | 
| Confirmed User Join Date: Mar 2004 
					Posts: 2,047
				 | no problem    | 
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|  02-15-2005, 02:43 AM | #5 | 
| Confirmed User Join Date: Jan 2005 
					Posts: 764
				 | nah im not sure 
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|  02-15-2005, 02:57 AM | #6 | 
| Confirmed User Join Date: Apr 2002 Location: /root/ 
					Posts: 4,997
				 | rsync can be used if your data doesn't update too often otherwise its a pain. I'd suggest nfs on a raid5 server if you dont want to use a netapp. thats the storage part. for load balancing you can use a server with a program like pen or an apache2 with mod_proxy or mod_backhand... or squid if you wanna do caching... or.... the solutions are endless, google is your friend. | 
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|  02-15-2005, 03:16 AM | #7 | 
| Confirmed User Join Date: Jul 2003 Location: back of beyond 
					Posts: 2,951
				 | I sure hope you work it out... | 
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|  02-15-2005, 07:21 AM | #8 | 
| Confirmed User Join Date: Dec 2002 Location: San Diego, CA 
					Posts: 3,047
				 | Check out beowoulf :-) thats a real supercomputer cluster. Also search for MDI | 
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|  02-15-2005, 07:56 AM | #9 | 
| Confirmed User Join Date: Jun 2003 Location: Everywhere at once 
					Posts: 991
				 | rsync is not a cluster, per se.  Its a way of synchronizing servers in (near) real time.  All my porn servers are synchronized with failover or load balancing across multiple servers using rsync. Thats not the same as a cluster though. The disadvantage of clusters is expense and complexity. Also I prefer load balanced servers be at different hosting companies, something not usually possible with a cluster. You have to ask yourself if you really want a cluster - for most web servers load balanced replicated servers are often a better and cheaper solution. 
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|  07-31-2005, 06:48 PM | #10 | 
| Registered User Join Date: Oct 2001 Location: Amsterdam, The Netherlands 
					Posts: 76
				 | If you still need help about this matter you can contact me about this. We do nothing but building web clusters ;-) ICQ: 1616336 http://www.muntinternet.com 
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|  07-31-2005, 07:24 PM | #11 | 
| Confirmed User Join Date: Nov 2003 Location: New Joisey 
					Posts: 3,087
				 | We have perfected a linux software based cluster system based on ipvs, lvs and a reverse proxy system. It is a awesome setup that handles 100's of millions of hits a day on off the shelf servers 
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|  07-31-2005, 07:34 PM | #12 | 
| Confirmed User Join Date: May 2004 Location: the woodwork 
					Posts: 885
				 | There are lots of possibilities.  We're using EMIC and PolyServe software applications on RedHat ES 3.  This is makes more sense on a large setup, but it provides a very scalable clustering solution. 
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|  09-14-2005, 06:31 AM | #13 | 
| Registered User Join Date: Sep 2005 
					Posts: 62
				 | load balancing applications/hardware is the key. then of course the data synchronisation.... or you can also read more about LVS (freeware) | 
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|  09-14-2005, 06:38 AM | #14 | 
| Confirmed User Join Date: Feb 2002 Location: Amsterdam 
					Posts: 9,377
				 | load balancing with distrubuted DNS or round robin dns if you have to. cheaper and for just highload traffic way better than a cluster... 
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