We did have a talk with the folks over at http://www.linuxlabs.com/clustgres
They were honest enough to say that even with the Dolphon interconnects, that writing would be slower than usual. We have not made a complete decision on that yet, but are still looking at alternatives.
It seems that Clustres might be a good solution. They use a SAN, the Dolphin interconnects, and multiple diskless nodes. In theory I am sure it works, but this is one of the chicken/egg problems where we want to see it in general use first before committing :-)
- Ericson
Greg Spiegelberg wrote:
2 dual PIII-1.4GHz Linux RedHat 3.0 servers each with onboard AIC7xxx and 2 U160 drives (mirrored), 2 GB of ECC memory, 2 onboard Intel Ether Pro 100Mbps type NIC's, 1 Qlogic 2310 HBA on a 1GBs SAN using a Candera 510 storage cluster with Xyratex SATA on the backend configured with 1+0 LUN's. It will be using a private network and a small disk on the SAN as the interconnect.
Once I have it running and I've run the necessary tests for myself I could run a few tests for anyone else who is interested. Deadline is June 18th when either I scrap it and try a different solution or we have to buy in which case I'll need it for our production databases. Below is the config I intend to use for PostgreSQL 7.4.2.
Greg
PostgreSQL 7.4.2 config & compile configure \ --prefix=/psfs1/apps/pgsql-7.4.2 \ --enable-thread-safety \ --enable-largefiles \ --enable-odbc \ --enable-multibyte \ --enable-shared \ --enable-syslog \ --with-perl \ --with-CXX \ --with-pam \ --with-maxbackends=128 \ --with-tcl \ --with-readline \ --with-zlib make -j 2 CPPFLAGS="-O3 -DALLOW_ABSOLUTE_DBPATHS -DLOCK_DEBUG" all
Ericson Smith wrote:
Do you mean that you are actually testing this product now? If so, what's the hardware configuration (nodes, storage server, interconnects) that you are using?
Warmest regards, Ericson Smith Tracking Specialist/DBA +-----------------------+-----------------------------------------+ | http://www.did-it.com | "3 Years ago I was worth $5M on paper!" | | eric@did-it.com | "Sweet! Can I have fries with that?" | | 516-255-0500 | - Tom Tomorrow | +-----------------------+-----------------------------------------+
Greg Spiegelberg wrote:
Robert,
I am currently evaluating PolyServe Matrix Server which is a clustering solution including a clustered file system (mounted read-write everywhere).
Anything special anyone wants to know? I'm using PostgreSQL 7.4.2 in a Linux cluster.
Greg
Robert Treat wrote:
On Thu, 2004-05-20 at 14:30, Kris Kiger wrote:
Has anyone heard of clusgres or, better yet, had any experience with it? I came across it while searching for active clustering projects.
http://www.linuxlabs.com/clusgres.html
Thanks in advance for the info!
I have heard of it but I've not heard of any reports on these lists of
how well it works. If you (or anyone else) gives it a spin please try to
post an account to the list and/or if you send me the info it could
probably make its way on to techdocs.
Robert Treat
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