[PVE-User] [v4.1] Ceph Server and systemd

[Alexandre DERUMIER]

Hi,

>>root at camelot:~# systemctl start ceph-osd at 8 
>>Failed to start ceph-osd at 8.service: Unit ceph-osd at 8.service failed to 
>>load: No such file or directory. 

systemd unit file are supported since infernalis only.


/etc/init.d/ceph start osd.8

is the correct command before infernalis


>>root at camelot:~# systemctl status ceph-osd at 8 
>>● ceph-osd at 8.service 
>>Loaded: not-found (Reason: No such file or directory) 
>>Active: inactive (dead) 

not sure you'll be able to have status with systemctl without unit file.

are you sure that it was not started by /etc/init.d/ceph start osd.8 ?

/etc/init.d/ceph status osd.8 should give you status





----- Mail original -----
De: "Eneko Lacunza" <elacunza at binovo.es>
À: "proxmoxve" <pve-user at pve.proxmox.com>
Envoyé: Lundi 25 Janvier 2016 16:08:59
Objet: [PVE-User] [v4.1] Ceph Server and systemd

Hi all, 

This weekend osd.8 of our 9-osd ceph/proxmox v4.1 cluster went down. It 
seems there was some kind of error with the RAID disk controller, but 
that's another issue (server is fine right know thanks ;) ). 

This morning I've tried to restart osd.8 from the cli . Looking around 
it seemed that the correct command was: 

systemctl start ceph-osd at 8 

But it hasn't worked: 
# /etc/init.d/ceph start osd.8 
[ ok ] Starting ceph (via systemctl): ceph.service. 
root at camelot:~# systemctl start ceph-osd at 8 
Failed to start ceph-osd at 8.service: Unit ceph-osd at 8.service failed to 
load: No such file or directory. 
root at camelot:~# systemctl status ceph-osd at 8 
● ceph-osd at 8.service 
Loaded: not-found (Reason: No such file or directory) 
Active: inactive (dead) 

I was able to restart osd.8 from Proxmox GUI though (extra points for 
Proxmox Ceph Server!) 

Now, if I check services in systemd: 

# systemctl|grep ceph-osd 
var-lib-ceph-osd-ceph\x2d1.mount loaded active mounted 
/var/lib/ceph/osd/ceph-1 
var-lib-ceph-osd-ceph\x2d3.mount loaded active mounted 
/var/lib/ceph/osd/ceph-3 
var-lib-ceph-osd-ceph\x2d8.mount loaded active mounted 
/var/lib/ceph/osd/ceph-8 
run-30379.service loaded active running /bin/bash -c ulimit -n 32768; 
/usr/bin/ceph-osd -i 8 --pid-file /var/run/ceph/osd.8.pid -c 
/etc/pve/ceph.conf --cluster ceph -f 
run-3134.service loaded active running /bin/bash -c ulimit -n 32768; 
/usr/bin/ceph-osd -i 3 --pid-file /var/run/ceph/osd.3.pid -c 
/etc/ceph/ceph.conf --cluster ceph -f 
run-3368.service loaded active running /bin/bash -c ulimit -n 32768; 
/usr/bin/ceph-osd -i 1 --pid-file /var/run/ceph/osd.1.pid -c 
/etc/ceph/ceph.conf --cluster ceph -f 
run-3609.service loaded active exited /bin/bash -c ulimit -n 32768; 
/usr/bin/ceph-osd -i 8 --pid-file /var/run/ceph/osd.8.pid -c 
/etc/ceph/ceph.conf --cluster ceph -f 

I'm not yet very comfortable with systemd, but it doesn't seem a good 
state, as there are 2 osd.8 services now? And the osd.8 service started 
from GUI has slightly different command line, altough it should be OK AFAIK. 

What is the correct CLI command to start/stop Ceph daemons? 

Thanks for your suggestions... 

Eneko 

-- 
Zuzendari Teknikoa / Director Técnico 
Binovo IT Human Project, S.L. 
Telf. 943575997 
943493611 
Astigarraga bidea 2, planta 6 dcha., ofi. 3-2; 20180 Oiartzun (Gipuzkoa) 
www.binovo.es 

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