Re: [Dspace-tech] Clustering of Dspace servers
On Wed, Sep 19, 2007 at 09:26:52AM +0530, Nandita Chaudhri wrote: I was told Dspace does not respond well to software clustering of servers but is OK with hardware clustering. That depends on what you mean by software clustering. If we want a high availabilty application in Dspace what is the recommended configuration for the servers and software if any required. Regards, A long time ago, a few of us looked into the feasibility of clustering DSpace, and recorded the results here: http://wiki.dspace.org/index.php/HOWTO_Clustering There are three layers which you may want to cluster, each having a different level of difficulty in implementation: filesystem (relatively easy), tomcat (still reasonably simple), and the database (much harder). The conclusion that I came to about clustering the database was that to do so with open source tools was, at the time, pretty much infeasible. cheers, Jim -- James Rutherford | Hewlett-Packard Limited registered Office: Research Engineer | Cain Road, HP Labs | Bracknell, Bristol, UK | Berks +44 117 312 7066 | RG12 1HN. [EMAIL PROTECTED] | Registered No: 690597 England The contents of this message and any attachments to it are confidential and may be legally privileged. If you have received this message in error, you should delete it from your system immediately and advise the sender. To any recipient of this message within HP, unless otherwise stated you should consider this message and attachments as HP CONFIDENTIAL. - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2005. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ ___ DSpace-tech mailing list DSpace-tech@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/dspace-tech
Re: [Dspace-tech] Clustering of Dspace servers
On Wed, 2007-09-19 at 11:51 +0200, Christian Voelker wrote: So in case Sequoia and Terracotta turn out not to be the way to go, then Slony deserves a second look. But I agree that all this doesnt sound to be a job for an afternoon. NB: Terracotta is not part of a solution for replicating the database. It would / could be used for replicating session data between multiple web servers. In that case it is complimentary to either Sequoia or Slony, not an alternative. G -- Graham Triggs Technical Architect Open Repository BioMed Central Ltd Middlesex House 34-42 Cleveland Street London, W1T 4LB This e-mail is confidential and should not be used by anyone who is not the original intended recipient. BioMed Central Limited does not accept liability for any statements made which are clearly the sender's own and not expressly made on behalf of BioMed Central Limited. No contracts may be concluded on behalf of BioMed Central Limited by means of e-mail communication. BioMed Central Limited Registered in England and Wales with registered number 3680030 Registered Office Middlesex House, 34-42 Cleveland Street, London W1T 4LB - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2005. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ ___ DSpace-tech mailing list DSpace-tech@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/dspace-tech
[Dspace-tech] Clustering of Dspace servers
I was told Dspace does not respond well to software clustering of servers but is OK with hardware clustering. If we want a high availabilty application in Dspace what is the recommended configuration for the servers and software if any required. Regards, - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2005. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/___ DSpace-tech mailing list DSpace-tech@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/dspace-tech
