OpenStack Rally 性能测试

注意点：在测试nova，在配置文件里面如果不指定网络id，那么默认是外网的网络（该网络是共享的），如果想要指定网络，那么该网络必须是共享的状态，否则将会报错：无法发现网络。如果测试多于50台的虚拟机需要修改默认值，因为默认值是有限制的可用如下命令查看：

[root@rally nova]# nova absolute-limits   
+-------------------------+---------+
| Name                    | Value   |
+-------------------------+---------+
| maxServerMeta           | 128     |
| maxPersonality          | 100     |
| maxImageMeta            | 128     |
| maxPersonalitySize      | 10240   |
| maxTotalRAMSize         | 5120000 |
| maxSecurityGroupRules   | 20      |
| maxTotalKeypairs        | 100     |
| totalRAMUsed            | 58960   |
| maxSecurityGroups       | 10      |
| totalFloatingIpSUSEd    | 0       |
| totalInstancesUsed      | 24      |
| totalSecurityGroupsUsed | 1       |
| maxTotalFloatingIps     | 10      |
| maxTotalInstances       | 200     |
| totalCoresUsed          | 51      |
| maxTotalCores           | 500     |
+-------------------------+---------+
 

修改默认值可以在界面，管理员->默认值，进行修改；其次可以在运行nova-api服务的节点上修改配置文件nova.conf
安装rally：

[root@rally nova]#git clone https://github.com/openstack/rally.git 
[root@rally rally]# /usr/bin/easy_install pip （安装pip,有就不需要装了）
[root@rally rally]# mkdir /root/.pip[root@rally rally]# vim /root/.pip/pip.conf  （设置pip源，加快安装速度）[global]index-url=http://pypi.douban.com/simple
[root@rally nova]#pip install -U virtualenv 安装虚拟环境（可装可不装，一般为了系统的干净还是装个虚拟环境）
[root@rally nova]#virtualenv .venv
[root@rally nova]#. .venv/bin/activate
[root@rally nova]#yum install gcc-c++      （安装编译工具）
[root@rally nova]#cd rally
[root@rally rally]#./install_rally.sh....
======================================================================Information about your Rally installation:* Method: system* Database at: /var/lib/rally/database* Configuration file at: /etc/rally======================================================================
安装完成，数据库的配置这里暂时没做。

 创建一个随便命名的.json格式文件：

这是keystone版本为v2[root@rally rally]# cat existing.json
{
"type": "ExistingCloud",
"auth_url": 'http://172.16.105.189:35357/v2.0/',
"admin":{
    "username": admin,
    "password": admin,
    "tenant_name": admin
    }
}keystone版本为v3时用以下模板参考https://github.com/openstack/rally/blob/master/samples/deployments/existing-keystone-v3.json
[root@rally rally]# cat existing.json
{"type": "ExistingCloud","auth_url": 'http://ip:5000/v3/',"region_name": "RegionOne","endpoint_type": "public","admin":{"username": "admin","password": "xxx","project_name": "admin","project_domain_name": "default","user_domain_name": "default" }}
 
[root@rally rally]# rally deployment create --file=existing.json --name=existing           +--------------------------------------+----------------------------+----------+------------------+--------+| uuid | created_at | name | status | active |+--------------------------------------+----------------------------+----------+------------------+--------+| 15ef811a-6460-407c-b391-c0f435f1ae54 | 2015-03-05 10:09:36.468176 | existing | deploy->finished | |+--------------------------------------+----------------------------+----------+------------------+--------+Using deployment: 15ef811a-6460-407c-b391-c0f435f1ae54
 
[root@rally rally]# rally deployment checkkeystone endpoints are valid and following services are available:+------------+-----------+-----------+| services | type | status |+------------+-----------+-----------+| ceilometer | metering | Available || cinder     | volume   | Available || cinderv2   | volumev2 | Available || glance     | image    | Available || keystone   | identity | Available || neutron    | network  | Available || nova       | compute  | Available || nova_ec2   | ec2      | Available || novav3     | computev3 | Available |+------------+-----------+-----------+
如此便可继续往下进行OpenStack基准测试了。

举个测试启动虚拟机的例子：boot.json文件内容如下：

doc/samples/tasks/scenarios/nova/boot.json

[root@rally nova]# cat boot.json 
{
    "NovaServers.boot_server": [
        {
            "args": {
                "flavor": {
                    "name": "m1.large"
                },
                "image": {
                    "name": "Windows_Server_2008R2_SP1_Standard_64bit"
                },
                "nics":[{"net-id": "c7048568-c966-4d57-a927-90dd8830fb96"}],(默认是没有这行的)
            },
            "runner": {
                "type": "constant",
                "times": 100,                     （测试次数100）
                "concurrency": 2                 （并发数）
            },
            "context": {
                "users": {
                    "tenants": 3,                
                    "users_per_tenant": 2
                }
            }
        }
    ]
}

[root@rally nova]# . /root/rally/.venv/bin/activate
[root@rally nova]# rally -v task start boot.json（/root/rally/doc/samples/tasks/scenarios/nova这是当前的目录）

以上的图是测试结果。

当通过rally deployment check检查OpenStack的service状态时，出现__unknown__,这是由于keystone 的service catalog没有返回service name并且rally无法通过type识别service，但此时可以利用rally plugin show api_version，来指定相应的api版本，举个例子：

# In this example we will launch NovaKeypair.create_and_list_keypairs
        # scenario on 2.2 api version.
        {
            "NovaKeypair.create_and_list_keypairs": [
                {
                    "args": {
                        "key_type": "x509"
                    },
                    "runner": {
                        "type": "constant",
                        "times": 10,
                        "concurrency": 2
                    },
                    "context": {
                        "users": {
                            "tenants": 3,
                            "users_per_tenant": 2
                        },
                        "api_versions": {
                            "nova": {
                                "version": 2.2
                            }
                        }
                    }
                }
            ]
        }

相关链接：http://rally.readthedocs.org/en/latest/

https://rally.readthedocs.org/en/latest/tutorial/step_0_installation.html

https://rally.readthedocs.org/en/latest/tutorial/step_1_setting_up_env_and_running_benchmark_from_samples.html