“RUNNING A JBOSS CLUSTER IN THE CLOUD”, by Bela Ban, JBoss. “JBoss Clustering uses IP
multicasting, so it doesn’t work on EC2 !@#$@” — WRONG ! Of course it DOES ! -
Posted in aws, cluster, ec2, java, jboss, JbossWorld, multicast, network, presentation, redhat | Comments Off | permalink
Notes about OpenVPN performance testing. Results, in short: easy to saturate 100Mbit network on common hardware. Possible to do a near wire-line speed on 1Gbit network (needs recent version of openssl-1.0a, fresh intel CPU that does AES in hardware …
Posted in 10G, AES, AES-NI, benchmark, intel, network, openvpn, performance, Security, shortcut:openvpn, testing, vpn | Comments Off | permalink
Presentation by Josh Berkus (PostgeSQL developer)
at MySQL User Conference 2011
Posted in databases, datawarehouse, dba, DW, OLAP, partitioning, postgresql | Comments Off | permalink
Thanks to Aloha LoadBalncer people for nice SSL protocol diagram
Posted in diagrams, https, protocol, ssl | Comments Off | permalink
Slides describe how FB uses caching at web server/php layer. ($GLOBALS->apc_cache->memcache->MySQL)
Posted in cache, caching, memcached, performance, php, web, webdev | Comments Off | permalink
Read it. Take it with a grin of salt* . Nevertheless, the piece gives you sort of accurate prospective on how business views/values your engineering position
Posted in advice, career, engineering, english | Comments Off | permalink
The subject. Monit is only used for monitoring basic service availability and standard system metrics. Munin is used to monitor tomcat internal parameters collected from tomcat manager via munin plugin
Posted in Linux, monit, monitor, munin, sysadmin, tomcat | Comments Off | permalink
The Subj. Try to solve the questions in your head, w/out using paper and pencil. [from AVVA http://avva.livejournal.com/ ]
Posted in binary, cs, fun, math, questions, quiz | Comments Off | permalink
Worm uses bug in jmx-console to execute shell code, then it installs perl-based control daemon that connects to IRS, and tries to discover other JBoss’es near by by using jgroups UDP multicast. Here is more details, including the source code http://pa…
Posted in bug, infosec, jboss, jbossas, jmx-console, update, virus, work, worm | Comments Off | permalink
Hewlett-Packard Technology brief, 2nd edition. APR/2011. This paper summarizes the technologies in the latest generation of AMD Opteron and Intel Xeon processors. These technologies include: Microarchitecture, I/O, Power management, Virtualization, Da…
Posted in 5600, 6100, 6500, 7500, amd, cpu, intel, Opteron, paper, processors, Proliant, Xeon | Comments Off | permalink
You are currently browsing the Konstantin Antselovich weblog archives for October, 2011.
Konstantin Antselovich (c) 2004-2011
powered by WordPress
Entries (RSS)
and Comments (RSS).
