The guides on the Zabbix and Ceph websites explain in different ways how to monitor Ceph with Zabbix, but neither of the guides are complete and work out the box….
Monitor Ceph (reef) with Zabbix
Ceph – distribute data evenly in near full pool
Sometimes when a pool or an OSD is nearful in Ceph, rebalancing tends to stop and you end up with a Ceph cluster in a warn state. The following couple…
Ceph rbd: mgr command failed: (2) No such file or directory
With Ceph Reef running rbd perf image iotop results in the following error: To resolve the error simply specify the pool as follows:
Solve InvalidAccessKeyId when accessing Ceph RGW dashboard
With Ceph Quincy, I sometimes received the following error: RGW REST API failed request InvalidAccessKeyId. This is as a result of the RGW dashboard user not having the correct permissions….
Remove Monitor/Manager from Ceph
This will keep mon_hostname_1 and mon_hostname_2 as monitors and remove any other monitors that were previously there. The same can be achieved for managers with the following:
Acknowledge/Remove Ceph alert
Ceph will show you a health warning status or something similar until the warning/alert is removed or after a defined period of time has elapsed. To remove warnings: You’ll then…
Add Manager/mgr or Monitor/mon Ceph Orchestrator
To add another Manager/mgr to Ceph using the Orchestrator: To add another Monitor/mon to Ceph using the Orchestrator:
Add/Zap OSD using Ceph Orchestrator
To add an OSD using Ceph Orchestrator: Replace hostname-of-osd with the hostname of the osd server. Replace /dev/sda with the path of the drive you’re trying to add. To Zap/clean…