Date: Wed, 31 Oct 2007 23:16:44 +1100 (EST) From: Peter Ross <Peter.Ross@alumni.tu-berlin.de> To: Jordi Prats <jprats@cesca.es> Cc: freebsd-cluster@freebsd.org Subject: Re: HA cluster Message-ID: <20071031222808.V1141@klein.bigpond.com> In-Reply-To: <4727BDD6.8060105@cesca.es> References: <4727BDD6.8060105@cesca.es>
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Hi Jordi, On Wed, 31 Oct 2007, Jordi Prats wrote: > Currently I have two (redundant) load balancers with LVS, I checked the Website.. the most of them are on application level so they should be available under FreeBSD as well. E.g. I have a Red Hat szenario with Apache as the loadbalancer and clustered tomcat 6.0 behind. A developer has the same setup at a FreebSD-7 box and tests it there. > and several NFS, I believe the Red Had Cluster uses GFS to have concurrent r/w access to the SAN? I try to imagine to use FreeBSD stuff as gmirror, ZFS, iscsi, CARP etc... it all does not sum up to something similiar - but it may be my lack of imagination only. NFSv4 is designed to support for replication and migration but I have no idea about the FreeBSD implementation status. I just find this old status report: http://www.freebsd.org/news/status/report-2006-01-2006-03.html#FreeBSD-NFS-Status-Report "FreeBSD NFSv4 server is pretty stable now and available via anonymous ftp. NFSv4.1 features are not a part of it yet and are not likely to happen until at least the end of 2006. Contact rick@snowhite.cis.uoguelph.ca for details." The sources for current only contains code for a NFSv4 client. To be fair I do not know about the Linux implematation either. A document last updated in March (http://wiki.linux-nfs.org/wiki/index.php/Server_state) predicts this implemented in 2.6.19. We have 2.6.23 by now but I cannot find it in the kernel changelogs.. > MySQL and PostgreSQL servers using RedHat cluster suite. As already pointed out there are replication solutions for postgresql and MySQL - they should work under FreeBSD in the same way as for Linux. Regards Peter
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