Cinder服务使用

Cinder环境

Cinder配置

重新创建卷组cinder-volumes

[root@openstack centos]# vgremove cinder-volumes
  Configuration setting "snapshot_autoextend_percent" invalid. It's not part of any section.
  Configuration setting "snapshot_autoextend_threshold" invalid. It's not part of any section.
  Volume group "cinder-volumes" successfully removed
[root@openstack centos]# pvremove /dev/loop1
  Configuration setting "snapshot_autoextend_percent" invalid. It's not part of any section.
  Configuration setting "snapshot_autoextend_threshold" invalid. It's not part of any section.
  Labels on physical volume "/dev/loop1" successfully wiped
[root@openstack centos]# pvdisplay
  Configuration setting "snapshot_autoextend_percent" invalid. It's not part of any section.
  Configuration setting "snapshot_autoextend_threshold" invalid. It's not part of any section.
  --- Physical volume ---
  PV Name               /dev/sda2
  VG Name               centos
  PV Size               286.91 GiB / not usable 3.00 MiB
  Allocatable           yes
  PE Size               4.00 MiB
  Total PE              73447
  Free PE               1
  Allocated PE          73446
  PV UUID               wWjJHc-i4A0-JuRb-OCrb-5aFn-YPli-cKOo9W

[root@openstack cinder]# fdisk /dev/sda

  The device presents a logical sector size that is smaller than
  the physical sector size. Aligning to a physical sector (or optimal
  I/O) size boundary is recommended, or performance may be impacted.
  Welcome to fdisk (util-linux 2.23.2).

  Changes will remain in memory only, until you decide to write them.
  Be careful before using the write command.

  Command (m for help): p

  Disk /dev/sda: 500.1 GB, 500107862016 bytes, 976773168 sectors
  Units = sectors of 1 * 512 = 512 bytes
  Sector size (logical/physical): 512 bytes / 4096 bytes
  I/O size (minimum/optimal): 4096 bytes / 4096 bytes
  Disk label type: dos
  Disk identifier: 0x0009d821

     Device Boot      Start         End      Blocks   Id  System
  /dev/sda1   *        2048     1026047      512000   83  Linux
  /dev/sda2         1026048   602710015   300841984   8e  Linux LVM
  /dev/sda3       602710016   798031871    97660928   8e  Linux LVM

  Command (m for help): q

[root@openstack cinder]# pvcreate /dev/sda3
  Configuration setting "snapshot_autoextend_percent" invalid. It's not part of any section.
  Configuration setting "snapshot_autoextend_threshold" invalid. It's not part of any section.
  Physical volume "/dev/sda3" successfully created
[root@openstack cinder]# pvdisplay
  Configuration setting "snapshot_autoextend_percent" invalid. It's not part of any section.
  Configuration setting "snapshot_autoextend_threshold" invalid. It's not part of any section.
  --- Physical volume ---
  PV Name               /dev/sda2
  VG Name               centos
  PV Size               286.91 GiB / not usable 3.00 MiB
  Allocatable           yes
  PE Size               4.00 MiB
  Total PE              73447
  Free PE               1
  Allocated PE          73446
  PV UUID               wWjJHc-i4A0-JuRb-OCrb-5aFn-YPli-cKOo9W

  "/dev/sda3" is a new physical volume of "93.14 GiB"
  --- NEW Physical volume ---
  PV Name               /dev/sda3
  VG Name
  PV Size               93.14 GiB
  Allocatable           NO
  PE Size               0
  Total PE              0
  Free PE               0
  Allocated PE          0
  PV UUID               sfF8Ys-NkAr-XZmT-Hkaa-xVCO-g2BY-mC7mHK
[root@openstack cinder]# vgcreate cinder-volumes /dev/sda3
  Configuration setting "snapshot_autoextend_percent" invalid. It's not part of any section.
  Configuration setting "snapshot_autoextend_threshold" invalid. It's not part of any section.
  Volume group "cinder-volumes" successfully created
[root@openstack cinder]# systemctl restart openstack-cinder-volume.service target.service
[root@openstack cinder]# cinder-manage service list
  No handlers could be found for logger "oslo_config.cfg"
  /usr/lib/python2.7/site-packages/oslo_db/sqlalchemy/enginefacade.py:241: NotSupportedWarning: Configuration option(s) ['use_tpool'] not supported
    exception.NotSupportedWarning
  Binary           Host                                 Zone             Status     State Updated At
  cinder-backup    openstack                            nova             enabled    :-)   2016-04-14 08:15:25
  cinder-scheduler openstack                            nova             enabled    :-)   2016-04-14 08:15:25
  cinder-volume    openstack                            nova             enabled    :-)   2016-04-14 08:15:16

Openstack 问题处理

cinder-volume服务启动失败

[root@openstack openstack]# cinder-manage service list
No handlers could be found for logger "oslo_config.cfg"
/usr/lib/python2.7/site-packages/oslo_db/sqlalchemy/enginefacade.py:241: NotSupportedWarning: Configuration option(s) ['use_tpool'] not supported
  exception.NotSupportedWarning
Binary           Host                                 Zone             Status     State Updated At
cinder-backup    openstack                            nova             enabled    :-)   2016-04-14 08:44:31
cinder-scheduler openstack                            nova             enabled    :-)   2016-04-14 08:44:31
cinder-volume    openstack                            nova             enabled    XXX   2016-04-14 08:29:44
[root@openstack openstack]# systemctl start openstack-cinder-volume.service
A dependency job for openstack-cinder-volume.service failed. See 'journalctl -xe' for details.
[root@openstack openstack]# journalctl -xe
-- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel
--
-- Unit openstack-losetup.service has failed.
--
-- The result is failed.
Apr 14 16:44:43 openstack.rdo systemd[1]: Dependency failed for OpenStack Cinder Volume Server.
-- Subject: Unit openstack-cinder-volume.service has failed
-- Defined-By: systemd
-- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel
--
-- Unit openstack-cinder-volume.service has failed.
--
-- The result is dependency.
Apr 14 16:44:43 openstack.rdo systemd[1]: Job openstack-cinder-volume.service/start failed with result 'dependency'.
Apr 14 16:44:43 openstack.rdo systemd[1]: Unit openstack-losetup.service entered failed state.
Apr 14 16:44:43 openstack.rdo systemd[1]: openstack-losetup.service failed.
Apr 14 16:44:43 openstack.rdo polkitd[916]: Unregistered Authentication Agent for unix-process:9686:87206 (system bus name :1.105, object path /org/fr
Apr 14 16:44:51 openstack.rdo account-server[1309]: Beginning replication run
Apr 14 16:44:51 openstack.rdo account-server[1309]: Replication run OVER
Apr 14 16:44:51 openstack.rdo account-server[1309]: Attempted to replicate 0 dbs in 0.00175 seconds (0.00000/s)
Apr 14 16:44:51 openstack.rdo account-server[1309]: Removed 0 dbs
Apr 14 16:44:51 openstack.rdo account-server[1309]: 0 successes, 0 failures
Apr 14 16:44:51 openstack.rdo account-server[1309]: no_change:0 ts_repl:0 diff:0 rsync:0 diff_capped:0 hashmatch:0 empty:0
Apr 14 16:44:52 openstack.rdo object-server[1279]: Begin object update sweep
Apr 14 16:44:52 openstack.rdo object-server[9755]: Object update sweep of swiftloopback completed: 0.00s, 0 successes, 0 failures
Apr 14 16:44:52 openstack.rdo object-server[1279]: Object update sweep completed: 0.02s
Apr 14 16:44:57 openstack.rdo container-server[1333]: Beginning replication run
Apr 14 16:44:57 openstack.rdo container-server[1333]: Replication run OVER
Apr 14 16:44:57 openstack.rdo container-server[1333]: Attempted to replicate 0 dbs in 0.00048 seconds (0.00000/s)
Apr 14 16:44:57 openstack.rdo container-server[1333]: Removed 0 dbs
Apr 14 16:44:57 openstack.rdo container-server[1333]: 0 successes, 0 failures
Apr 14 16:44:57 openstack.rdo container-server[1333]: no_change:0 ts_repl:0 diff:0 rsync:0 diff_capped:0 hashmatch:0 empty:0

根据日志可以看出是openstack-cinder-volume.service服务没起来，因为我前面删掉了原本的loop设备，所以导致这个问题，我们先看下这两个service文件，正确的阅读方式请参见 systemd.unit 中文手册

[root@openstack ~]# cd /usr/lib/systemd/system/
[root@openstack system]# cat openstack-cinder-volume.service
[Unit]
Description=OpenStack Cinder Volume Server
After=syslog.target network.target

[Service]
Type=simple
User=cinder
ExecStart=/usr/bin/cinder-volume --config-file /usr/share/cinder/cinder-dist.conf --config-file /etc/cinder/cinder.conf --logfile /var/log/cinder/volume.log

[Install]
WantedBy=multi-user.target

[root@openstack system]# cat openstack-losetup.service
[Unit]
Description=Setup cinder-volume loop device
DefaultDependencies=false
Before=openstack-cinder-volume.service
After=local-fs.target

[Service]
Type=oneshot
ExecStart=/usr/bin/sh -c '/usr/sbin/losetup -j /var/lib/cinder/cinder-volumes | /usr/bin/grep /var/lib/cinder/cinder-volumes || /usr/sbin/losetup -f /var/lib/cinder/cinder-volumes'
ExecStop=/usr/bin/sh -c '/usr/sbin/losetup -j /var/lib/cinder/cinder-volumes | /usr/bin/cut -d : -f 1 | /usr/bin/xargs /usr/sbin/losetup -d'
TimeoutSec=60
RemainAfterExit=yes

[Install]
RequiredBy=openstack-cinder-volume.service

既然我们已经自己手动创建了cinder-volumes，那么我们就不需要openstack-losetup.service这个脚本了，所以我们把Before+RequiredBy去掉即可

[root@openstack system]# cat openstack-losetup.service
[Unit]
Description=Setup cinder-volume loop device
DefaultDependencies=false
#Before=openstack-cinder-volume.service
After=local-fs.target

[Service]
Type=oneshot
ExecStart=/usr/bin/sh -c '/usr/sbin/losetup -j /var/lib/cinder/cinder-volumes | /usr/bin/grep /var/lib/cinder/cinder-volumes || /usr/sbin/losetup -f /var/lib/cinder/cinder-volumes'
ExecStop=/usr/bin/sh -c '/usr/sbin/losetup -j /var/lib/cinder/cinder-volumes | /usr/bin/cut -d : -f 1 | /usr/bin/xargs /usr/sbin/losetup -d'
TimeoutSec=60
RemainAfterExit=yes

[Install]
#RequiredBy=openstack-cinder-volume.service

重启系统

[root@openstack Init]# cinder-manage service list
No handlers could be found for logger "oslo_config.cfg"
/usr/lib/python2.7/site-packages/oslo_db/sqlalchemy/enginefacade.py:241: NotSupportedWarning: Configuration option(s) ['use_tpool'] not supported
  exception.NotSupportedWarning
Binary           Host                                 Zone             Status     State Updated At
cinder-backup    openstack                            nova             enabled    :-)   2016-04-14 10:06:47
cinder-scheduler openstack                            nova             enabled    :-)   2016-04-14 10:06:48
cinder-volume    openstack                            nova             enabled    :-)   2016-04-14 10:06:48