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cinder-volume service fails to start

asked 2013-01-14 15:46:06 -0600

dafridgie gravatar image

Cinder-volume fails to start package version - 2012.2-0ubuntu2~cloud0 OS - Ubuntu 12.04 - 3.2.0-35-generic #55-Ubuntu SMP Wed Dec 5 17:42:16 UTC 2012 x86_64 x86_64 x86_64 GNU/Linux

problem statement - Unable to start Cinder-volume service, it fails on startup when configured to use ceph RBD backend. The Cinder-api and Cinder scheduler service start Ok 100% of the time

Symptoms - unable to start cinder-volume with the following error appearing in cinder-volume.log:

2013-01-14 14:00:04 9327 AUDIT cinder.service [-] Starting cinder-volume node (version 2012.2-LOCALBRANCH:LOCALREVISION) 2013-01-14 14:00:04 DEBUG cinder.utils [req-2c7afcd5-12ac-414a-b175-0b449a211a4b None None] Running cmd (subprocess): rados lspools execute /usr/lib/python2.7/dist-packages/cinder/utils.py:156 2013-01-14 14:00:04 DEBUG cinder.utils [req-2c7afcd5-12ac-414a-b175-0b449a211a4b None None] Result was 254 execute /usr/lib/python2.7/dist-packages/cinder/utils.py:172 2013-01-14 14:00:04 9327 CRITICAL cinder [-] Unexpected error while running command. Command: rados lspools Exit code: 254 Stdout: '' Stderr: "2013-01-14 14:00:04.291794 7fc8bffee780 -1 asok(0x14d9a70) AdminSocketConfigObs::init: failed: AdminSocket::bind_and_listen: failed to bind the UNIX domain socket to '/var/run/ceph/client.admin.so ck': (13) Permission denied\n2013-01-14 14:00:04.292146 7fc8bffee780 -1 monclient(hunting): ERROR: missing keyring, cannot use cephx for authentication\n2013-01-14 14:00:04.292152 7fc8bffee780 0 librados: client.admin initialization error (2) No such file or directory\ncouldn't connect to cluster! error -2\n"

if you start the service manually as per this , it does start and run:

exec /bin/sh -c "exec cinder-volume --config-file=/etc/cinder/cinder.conf --log-file=/var/log/cinder/cinder-volume.log" cinder

the service stays up and connects to RBD volumes successfully

I suspect i need to do something to Cinders rootwrap configuration, but cant find a lot of guidance as to how to get this setup

Any suggestions or guidance would be really appreciated

My Cinder.conf is as follows:

[DEFAULT] debug=true sql_connection = mysql://cinder:(pw>@<cloud controller="" ip="">:3306/cinder rabbit_password = <rabbitpw> rootwrap_config = /etc/cinder/rootwrap.conf api_paste_confg = /etc/cinder/api-paste.ini volume_driver = cinder.volume.driver.RBDDriver rbd_pool=nova rbd_user=admin rbd_secret_uuid=<secretuiuidhere) volume_tmp_dir="/var/lib/nova/voltemp&lt;/p">

(StrOpt) where to store temporary image files if the volume driver

does not write them directly to the volume

iscsi_helper = tgtadm

volume_name_template = volume-%s volume_group = volumes

verbose = True

auth_strategy = keystone state_path = /var/lib/cinder

volumes_dir = /var/lib/cinder/volumes

Also, if there is a detailed installation guide showing all configuration steps needed to integrate Cinder into Openstack and Ceph, I'd appreciate a link to any documentation available

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answered 2013-01-15 18:48:01 -0600

dafridgie gravatar image

Ok, solved it It was a specific permissions problem on the ceph keyring file that prevented the keyring being read by the cinder user Thanks to Inktank for their guidance on this! Once the keyring could be read by the cinder user, the volume service fired up as it should

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Asked: 2013-01-14 15:46:06 -0600

Seen: 1,226 times

Last updated: Jan 15 '13