Thursday Jan 12, 2012

About GlassFish network topologies and load-balancing

Note: if you're reading this using a feedreader, please make sure you've updated to the updated TheAquarium feed.

Load-balancing is a topic that comes up often with GlassFish users and Markus has posted a piece covering both proxying and load-balancing.

He covers Unix techniques such as iptables, authbind and Apache mod_proxy as both a reverse-proxy or rewriting engine but also the Jsvc utility. He also touches on different load-balancing options: Oracle GlassFish Server, mod_jk, and mod_proxy_balancer. Feel free to share your load-balancing experiences on his blog.

Note that GlassFish 3.1.2 will strengthen its support for mod_proxy_ajp and that load-balancing provisioning is handled by early builds of GlassFish 4.0 as shown in this video from JavaOne 2011.


Saturday Jun 21, 2008

Magnum - The Big, The Nano, The Ice Cream


Sun has announced a new InfiniBand switch, the NanoMagnum (DataCenter Switch 3x24); see BMSeer intro and Sun's Press Release. Josh has a Detailed Note that shows how NanoMagnum works, including how 4 NanoMagnums can provide full interconnectivity with 288 nodes (blade servers).

NanoMagnum's bigger brother Magnum (DataCenter Switch 3456) can connect 3456 nodes, or 13,824 in a group of 4. There is a nice description of the two switches in this Interactive Tour. The full systems are the Constellation Systems: home page, tour.

And then there is also the Magnum Ice Cream. Arguably more useful in hot days like today :-)

I've tagged this entry with (geeky) Toys :-)

Saturday Oct 21, 2006

Java EE JavaDocs now at Docs.Java.Sun.Com

Duke Reading in a Comfy Chair

James has added the Java EE 5 documentation to DocWeb, his Social Network experiment in community-driven translation. Some additional navigation mechanisms are likely to show up: there are just too many classes. See James' blog for details. runs on GlassFish. I have started an informal page on GlassFish Deployments at the GlassFish wiki; I'll see if I have time to add a few sites tomorrow, but feel free to add your site directly.