验证操作¶

验证Telemetry服务操作。为了简单些，下面的这些步骤只包括了镜像服务计量信息。如果环境中ceilometer集成了其他服务会包含更多计量信息。

1. 获得 admin 凭证来获取只有管理员能执行的命令的访问权限：

   $ . admin-openrc
   

2. 列出可用的 meters：

   $ ceilometer meter-list
   +--------------+-------+-------+--------------------------------------+---------+------------+
   | Name         | Type  | Unit  | Resource ID                          | User ID | Project ID |
   +--------------+-------+-------+--------------------------------------+---------+------------+
   | image        | gauge | image | acafc7c0-40aa-4026-9673-b879898e1fc2 | None    | cf12a15... |
   | image.size   | gauge | B     | acafc7c0-40aa-4026-9673-b879898e1fc2 | None    | cf12a15... |
   +--------------+-------+-------+--------------------------------------+---------+------------+
   

3. 从镜像服务下载CirrOS镜像：

   $ IMAGE_ID=$(glance image-list | grep 'cirros' | awk '{ print $2 }')
   $ glance image-download $IMAGE_ID > /tmp/cirros.img
   

4. 再次列出可用的 meters 以验证镜像下载的检查：

   $ ceilometer meter-list
   +----------------+-------+-------+--------------------------------------+---------+------------+
   | Name           | Type  | Unit  | Resource ID                          | User ID | Project ID |
   +----------------+-------+-------+--------------------------------------+---------+------------+
   | image          | gauge | image | acafc7c0-40aa-4026-9673-b879898e1fc2 | None    | cf12a15... |
   | image.download | delta | B     | acafc7c0-40aa-4026-9673-b879898e1fc2 | None    | cf12a15... |
   | image.serve    | delta | B     | acafc7c0-40aa-4026-9673-b879898e1fc2 | None    | cf12a15... |
   | image.size     | gauge | B     | acafc7c0-40aa-4026-9673-b879898e1fc2 | None    | cf12a15... |
   +----------------+-------+-------+--------------------------------------+---------+------------+
   

5. 从 image.download 表读取使用量统计值。

   $ ceilometer statistics -m image.download -p 60
   +--------+---------------------+---------------------+------------+------------+------------+------------+-------+----------+----------------------------+----------------------------+
   | Period | Period Start        | Period End          | Max        | Min        | Avg        | Sum        | Count | Duration | Duration Start             | Duration End               |
   +--------+---------------------+---------------------+------------+------------+------------+------------+-------+----------+----------------------------+----------------------------+
   | 60     | 2015-04-21T12:21:45 | 2015-04-21T12:22:45 | 13200896.0 | 13200896.0 | 13200896.0 | 13200896.0 | 1     | 0.0      | 2015-04-21T12:22:12.983000 | 2015-04-21T12:22:12.983000 |
   +--------+---------------------+---------------------+------------+------------+------------+------------+-------+----------+----------------------------+----------------------------+
   

6. 删除之前下载的镜像文件 /tmp/cirros.img：

   $ rm /tmp/cirros.img