Sébastien Han

| Comments | Tag: ceph

Ceph: monitoring with the Ceph Admin API

For quite some time, Ceph has an admin API. This article demonstrates and gives some hints to monitor Ceph.

Check health status:

$ curl localhost:5000/api/v0.1/health
HEALTH_OK

OSD tree:

$ curl localhost:5000/api/v0.1/osd/tree
# id    weight  type name   up/down reweight
-1  2   root default
-4  2       datacenter dc
-5  2           room laroom
-6  2               row larow
-3  2                   rack lerack
-2  2                       host ceph
0   1                           osd.0   up  1
1   1                           osd.1   up  1

OSD status:

$ curl localhost:5000/api/v0.1/osd/stat
     osdmap e1371: 2 osds: 2 up, 2 in

Monitors status:

$ curl localhost:5000/api/v0.1/mon/stat
e3: 1 mons at {1=192.168.251.100:6790/0}, election epoch 1, quorum 0 1

$ curl localhost:5000/api/v0.1/mon_status
{"name":"1","rank":0,"state":"leader","election_epoch":1,"quorum":[0],"outside_quorum":[],"extra_probe_peers":[],"sync_provider":[],"monmap":{"epoch":3,"fsid":"1c13637d-6c6f-47e3-92ca-3687f9cf9b52","modified":"2013-03-15 16:47:55.482545","created":"2013-03-11 10:33:18.021677","mons":[{"rank":0,"name":"1","addr":"192.168.251.100:6790\/0"}]}}


For a complete API overview please look at: http://dmsimard.com/2014/01/01/documentation-for-ceph-rest-api/

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