Zabbix plugin¶
The Zabbix plugin actively sends information to a Zabbix server like:
Ceph status
I/O operations
I/O bandwidth
OSD status
Storage utilization
Requirements¶
The plugin requires that the zabbix_sender executable is present on all machines running ceph-mgr. It can be installed on most distributions using the package manager.
Dependencies¶
Installing zabbix_sender can be done under Ubuntu or CentOS using either apt or dnf.
On Ubuntu Xenial:
apt install zabbix-agent
On Fedora:
dnf install zabbix-sender
Enabling¶
Add this to your ceph.conf on nodes where you run ceph-mgr:
[mgr]
mgr modules = zabbix
If you use any other ceph-mgr modules, make sure they’re in the list too.
Restart the ceph-mgr daemon after modifying the setting to load the module.
Configuration¶
Two configuration keys are vital for the module to work:
zabbix_host
identifier (optional)
The parameter zabbix_host controls the hostname of the Zabbix server to which zabbix_sender will send the items. This can be a IP-Address if required by your installation.
The identifier parameter controls the identifier/hostname to use as source when sending items to Zabbix. This should match the name of the Host in your Zabbix server.
When the identifier parameter is not configured the ceph-<fsid> of the cluster will be used when sending data to Zabbix.
This would for example be ceph-c4d32a99-9e80-490f-bd3a-1d22d8a7d354
Additional configuration keys which can be configured and their default values:
mgr/zabbix/zabbix_port: 10051
mgr/zabbix/zabbix_sender: /usr/bin/zabbix_sender
mgr/zabbix/interval: 60
Configuration keys¶
Configuration keys can be set on any machine with the proper cephx credentials, these are usually Monitors where the client.admin key is present.
ceph config-key set <key> <value>
For example:
ceph config-key set mgr/zabbix/zabbix_host zabbix.localdomain
ceph config-key set mgr/zabbix/identifier ceph.eu-ams02.local
Debugging¶
Should you want to debug the Zabbix module increase the logging level for ceph-mgr and check the logs.
[mgr]
debug mgr = 20
With logging set to debug for the manager the plugin will print various logging lines prefixed with mgr[zabbix] for easy filtering.
