greygraph on CentOS

Sunday, April 1st, 2012 Posted in centos, en_US, fedora, monitorização, performance | No Comments »

Today I gave a look at greygraph, a mailgraph-based tool for displaying sqlgrey graphs. Here are the adaptations to run it in CentOS. Have a look at the README inside the ... Read more..

Mounting disk images with multiple partitions

Tuesday, February 1st, 2011 Posted in en_US, filesystems, hardware | No Comments »

This is a common scenario: you made a disk image from a disk which wanted to wipe out, but when you finally arrange some time to do proper backup (you're ... Read more..

Listing miscellaneous Apache parameters in SNMP

Monday, September 28th, 2009 Posted in en_US, monitorização | No Comments »

We recently had to look at a server which occasionaly died with DoS. I was manually monitoring a lot of stuff while I was watching a persistent BIG apache worker ... Read more..

Analysing MySQL slow queries

Saturday, July 4th, 2009 Posted in en_US, mysql, performance | No Comments »

While I'm engaged in my MySQL DBA mode, I usually come across the hard task of surfing around the slow query log. Everybody trying to trace MySQL performance problems will hit ... Read more..