Archive for the 'sysadmin' Category
Monday, January 9th, 2012
“I P R E S E N T T O Y O U , D E A R R E A D E R , T H I S parable about how the different ways we organize our work result in different levels of customer satisfaction.”, by T H O M A S A . L I M O N C E L L I
Posted in management, organization, sysadmin, time, work, workflow | Comments Off | permalink
Monday, December 5th, 2011
Configuration of Reddit website as GitHub repo.
Posted in configuration, github, haproxy, high_load, reddit, repository, sysadmin | Comments Off | permalink
Sunday, October 23rd, 2011
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
Sunday, September 25th, 2011
Interesting test results comparing and analyzing SSL performance. Using right combination of software and proper tunning, you can get up to 14000 TPS (re-shake every 80 requests) on HP DL 380 G7, with two Xeon L5630 (running at 2.13GHz for a total of…
Posted in benchmark, comparison, Linux, networking, nginx, openssl, performance, Security, ssl, STUD, stunnel, sysadmin, tls | Comments Off | permalink
Sunday, September 25th, 2011
Also see http://lists.kde.org/?l=kde-scm-interest&m=1276129572… Especially the attachment linked from that page.
Posted in development, git, gitolite, gitosis, infrastructure, KDE, reviewboard, sysadmin, tools | Comments Off | permalink
Wednesday, September 21st, 2011
All sysadmins: take a note: Wikipedia opened access to it’s site configuration management: a git repository with config files for various system software
Posted in configuration, management, policy, site-config, sysadmin | Comments Off | permalink
Friday, May 6th, 2011
HA Proxy [synthetic] benchmarks on 10Gbit traffic. Linux network stack is the bottle neck here, not HAProxy, i.e. you can 10G line rate on big frames and few connections.
Posted in 10G, benchmark, haproxy, hardware, http, Linux, loadbalancing, performance, proxy, scalability, sysadmin | Comments Off | permalink
Friday, May 6th, 2011
Posted in 10G, benchmark, haproxy, hardware, http, Linux, loadbalancing, performance, proxy, scalability, sysadmin | Comments Off | permalink
Friday, May 6th, 2011
It appears to be an interesting bug in some versions of Oracle 10g, on Linux 2.6.x oracle process goes in loop doing times() system call if machine uptime < 199 days. Nice!!! / Oracle refs are bug 4612267 and 5867987 ) . The solution is to reboot.
Posted in 10G, 2.6, bugs, database, dba, Linux, oracle, sysadmin | Comments Off | permalink