debug
4 11 2015
If you deploy a lot of pods on each nodes, you might faced to an ressource error. Openshift 3 have a limits set on how many pods can be run on a node by default ? The answer is yes, by default the limits is 40 pods per node. It can be to low for […]
ansible, debug, docker, kubernate, openshift3, redhat
19 10 2015
gaelL | apache, debug, devops, linux, mariadb, mysql, netstat, nginx, php, socket, ss, troubleshooting |
The last week we had a production incident on one of our customer Monitoring was red, check_http was in timeout state and the web server doesn’t wanted to handle new connexions. So what is our problem, what happened to this web site, it was fine for long time and today, we have just a lot […]
apache, debug, devops, mysql
12 08 2015
Figure out how recover from split brain Recently my whole rabbitmq cluster 3.5 crashed. Generally just restart the last node up before the crash is enough. But sometimes not. I would point out that I have learned in some worst case scenario with rabbitmq. I’m not going to talk about a simple node crash, rabbitmq handle this […]
debug, devops, openstack, rabbitmq, troubleshooting
4 07 2015
One day I had a bug on OpenStack platform. If I remember well it was a nova problem. Lucky day for a debug session, all nova logs was in DEBUG level ! But as you may know, when you set this log level in OpenStack services, the output can be really, really, really verbose. So […]
debug, devops, glance, linux, neutron, nova, openstack, tools