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Old 06-21-2009, 03:37 AM   #1
xshad0wfx
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CentOS 5.3 Server Clustering/ Storage Cluster settup


Hi i hope this is the right place to paste this but after finding in adequate answers on google and centOS, i decided to post my question here. I want to settup a server cluster and storage system. My website space is getting filled up fast and i think im gonna need another machine to reduce the lag for the hits and for more storage space. So my question is, is there a tutorial or person out there who can explain to a complete noob how server clustring works and if its possible to have uploaded files be "clustered" so new uploaded files will be upliaded to the hardrive on machine 2 without editing my web script. if i do have to edit my webscript thats not a big deal, it'd just make it easier for me to not have to do that =). For example if "John" uploads a movie and it's which is normaly stored in var/www/html/videos is it possible to be stored on the other system instead of the initial one without having any impact on the website script at all?? If its possible that would be great. I just have no idea how server clustering works because this is the first time i've had to do it.
 
Old 06-21-2009, 03:49 AM   #2
micxz
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You could use rsync over ssh to keep the file stucture the same.
 
Old 06-21-2009, 04:53 AM   #3
vap16oct1984
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Quote:
Originally Posted by micxz View Post
You could use rsync over ssh to keep the file stucture the same.
Well i guess yes ur at right place first of all i thanks u for this goo question. when i go through it i found there are so many question here well i try to explain all these by taking one at a time.

Server clustering:-A computer cluster is a group of linked computers, working together closely so that in many respects they form a single computer. The components of a cluster are commonly, but not always, connected to each other through fast local area networks. Clusters are usually deployed to improve performance and/or availability over that provided by a single computer, while typically being much more cost-effective than single computers of comparable speed or availability.


Type of cluster
1.High Availability clustering
2.Load balancing clustering
3.Compute cluster
4.Grid computing

Now my question is which type of cluster you are going to use.
Pls tell me then accordingly i will tell u how it's work.

Regards,
Mr VAP
+91-9868457272
"for any help u call me any time"
 
Old 06-21-2009, 11:34 AM   #4
xshad0wfx
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Load-balancing clusters sounds like the one i need, im hoping if i share the load my computers wont get overloaded and they wont crash therefor making it useless to have a High Availability cluster. But by using this cluster settup, would it be possible to redirect video uploads if it reads the storage is 38/40gigs full to the other computers web directory folder.
 
Old 06-21-2009, 02:38 PM   #5
micxz
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There is a super cool book orielly's Linux Server Hacks that has a few tips on load balancing using rsync, distributing load with round robin DNS or apache rewritemap. It's a good read'
 
Old 06-22-2009, 04:41 AM   #6
vap16oct1984
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hope issue is resolved now if sitll having any confusion feel free to ask.
 
Old 05-29-2010, 11:59 AM   #7
sukhbir_shrm
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Unable to create the cluster Luci database objects

Dear VAP

i have 3 machine.
OS Redhat Enterprise Server 5.3

Install Luci on Computer1
Install ricci on Computer2
Install ricci on Computer3

All the computer name records in all system host file

using Database Server mysql

When i try to create new cluster then showing error...

Status messages:

* Host ClusterNode1.Nivians.net is already authenticated
* Host ClusterNode2.Nivians.net is already authenticated

[dismiss]


The following errors occurred:

* Unable to create the cluster Luci database objects

Please help me /................

Sukhbir Sharma
9910413136
 
Old 05-29-2010, 01:02 PM   #8
micxz
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This seems like a thread hijack. But it's hard to help either without the facts.
 
Old 05-30-2010, 06:25 AM   #9
vap16oct1984
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Hi Sukbhir,

Well its hard to tell exactly what is the problem.

PLs go through this likh... it will help you to set up step by step.

Hope it will resolve ur problem.

http://www.scribd.com/doc/3162599/Re...Administration
 
Old 05-30-2010, 08:52 PM   #10
sukhbir_shrm
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Unhappy Linux Cluster

Dear Vap,

i am telling you what exactly what we want. we want to create this scenario.

i want to configure Shorewall firewall in my office. Main Concern. So we want to install and configure two server.

So for the fault tolerance we want to use two server. because if one server is down then there is no effect on my shorewall. it will be work.

So please help me what should i do for create this scenario.....

Thanks
Sukhbir Sharma
9910413136
 
Old 05-30-2010, 09:01 PM   #11
kumar.manoj412
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You can try by creating another cluster and deleting the previous one. I faced the same issue last week, I reconfigure the cluster and it worked for me. Don't forget to remove cluster.conf file from node machines, else it will give error "node is a member of (some previous ) cluster"

regards
Manoj
9896926759


Quote:
Originally Posted by sukhbir_shrm View Post
Dear VAP

i have 3 machine.
OS Redhat Enterprise Server 5.3

Install Luci on Computer1
Install ricci on Computer2
Install ricci on Computer3

All the computer name records in all system host file

using Database Server mysql

When i try to create new cluster then showing error...

Status messages:

* Host ClusterNode1.Nivians.net is already authenticated
* Host ClusterNode2.Nivians.net is already authenticated

[dismiss]


The following errors occurred:

* Unable to create the cluster Luci database objects

Please help me /................

Sukhbir Sharma
9910413136
 
Old 05-30-2010, 09:30 PM   #12
sukhbir_shrm
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Registered: May 2010
Posts: 3

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Unable to create the cluster Luci database objects

Dear Manoj,

My node are already blank. likes..........
there is no any cluster.conf files are there

i have install only ricci service on both nodes. and install luci on differnet server. look like that
Install Luci on Computer1
Install ricci on Computer2
Install ricci on Computer3

Now tell me step by step, i ready to recreate this scenario once again...

thanks
Sukhbir
 
Old 05-30-2010, 09:35 PM   #13
kumar.manoj412
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Dear Sukhbir,

You can follow the steps provided in the following link

http://sources.redhat.com/cluster/co...er_manual.html


If you face any kind of issue then you can call me (+91 9896926759)

regards
Manoj



Quote:
Originally Posted by sukhbir_shrm View Post
Dear Manoj,

My node are already blank. likes..........
there is no any cluster.conf files are there

i have install only ricci service on both nodes. and install luci on differnet server. look like that
Install Luci on Computer1
Install ricci on Computer2
Install ricci on Computer3

Now tell me step by step, i ready to recreate this scenario once again...

thanks
Sukhbir
 
  


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