Usage Server

The Usage Server takes data from the events in the system and enables usage-based billing for accounts in cloudstack. The usage records show the amount of resources, such as VM run time or template storage space, consumed by guest instances.When multiple Management Servers are present, the Usage Server may be installed on any number of them. The Usage Servers will coordinate usage processing. A site that is concerned about availability should install Usage Servers on at least two Management Servers.The Usage Server runs at least once per day. It can be configured to run multiple times per day.

For install Usage server

yum install cloudstack-usage 
Once installed, start the Usage Server with the following command.

service cloudstack-usage start

Enable the service at boot

chkconfig cloudstack-usage on

Global Paramiters need to change by requirement

In MYSQL-database there is a database cloud_usage contain all the information with time stamp.                   

usage_event               

 usage_event_details       

 usage_ip_address          

 usage_job                 

 usage_load_balancer_policy

 usage_network             

 usage_network_offering    

 usage_port_forwarding     

 usage_security_group      

 usage_storage             

 usage_vm_disk             

 usage_vm_instance         

 usage_vmsnapshot          

 usage_volume              

 usage_vpn_user            

 user_statistics           

 vm_disk_statistics     

Example-mysql> select * from usage_event\G

id: 378

type: VM.CREATE

account_id: 2

created: 2015-04-06 09:27:01

zone_id: 1

resource_id: 37

resource_name: mycent1

offering_id: 27

template_id: 5

size: NULL

resource_type: XenServer

processed: 1

virtual_size: NULL

When you what to check usage record by using api fallow the below

http://192.168.0.41:8080/client/api?command=listVirtualMachines&response=json&sessionkey=DsWC5M7cN%2B2UZE%2FM7NDVplhPKpo%3D&listAll=true&page=1&pagesize=20&_=1428328631608 (copy Url add the api call for usage like below )

Here I am generate usage record for one account for one day.

http://192.168.0.41:8080/client/api?command=listUsageRecords&response=xml&sessionkey=P18GL7ltdP8pyMEZpgTpWfOJm1w%3D&listAll=true&page=1&pagesize=20&_=1428322026900&&&startdate=2015-04-05&enddate=2015-04-06