1.3 KiB
galeranotify
Python E-Mail script for use with Galera wsrep_notify_cmd
This script immediately generates an E-Mail if Your cluster state changes, so You won't miss a second. Also duplicates are dropped. Using Galera for instance in combination with commercial backup software like Comvault leads to a whole buch of notifications without a state change. This is caused by Comvault illegaly LOCKing slave-tables while dumping data out of the cluster. Since the LOCK didn't last too long, the locked slave is pulled back to synced shortly after. Each locked table causes an E-Mail. Therefore galeranotify remembers its previous state and drops the message if no state change has really happend.
Installation
Install it via pip is the easiest way
pip install git+https://git.binary-kitchen.de/sprinterfreak/galeranotify
- Place the galeranotify.yml under /etc/mysql and configure it.
- Set 'wsrep_notify_cmd = galeranotify' in your my.cnf file
- Restart MySql.
SELinux
A SELinux policy (galeranotify.pp) is also included that allows the mysql user to connect to a standard remote smtp port (port 25). If you are using an alternate SMTP port (common with SSL), this rule will not work for you.
Usage:
semodule -i galeranotify.pp
This rule was generated on Centos 6.4 64-bit. It may or may not work for your particular setup.