After i reboot my OS X, i find that i couldn’t start the MySQL server and it throws the following error:
hatuey:5.6.19 yingkityuen$ mysql.server start
Starting MySQL
. ERROR! The server quit without updating PID file (/usr/local/var/mysql/hatuey.local.pid).
Go to the above folder and delete the mysql error log which is ended with .err. In my case, i executed the following command:
Recently i have been working with Dashing which is a great tool to displaying information as a dashboard. I would like to show the dashboard on a big TV. Everything works fine on my Mac but when it is shown on the TV screen, the onclick event is not triggered.
I need to check which event is triggered when i press on the TV screen. The web developer console in Chrome of Firebug in Firefox could help you to determine which event is triggered. For example, the menu bar of Eureka! has the following HTML structure.
It works quite well, but then i realize if there is error in the grunt execution, Ant will still mark the Ant build successful and this may lead to some downstream failure in a continuous integration workflow. Continue reading Ant – Execute Grunt and fail it on error→
collectd is a statistics gathering tools which helps system admin to analysis the system conditions. It includes both server and client implementations. The collectd client send metrics to the collectd server.
I installed the collectd on a CentOS 7 machine and try to send the metrics to a Graphite instance. But no matter how i changed the setup, the Graphite couldn’t receive any data. Finally, i realized that it is blocked by the SELinux policy. Continue reading collectd – Cannot send out matrics→