x/python-ganttclient
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Simple usage extension for nova. Uses db to calculate tenant_usage for specified time periods.

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Methods:
    * index: return a list of tenant_usages, with option of incuding detailed server_usage
    * show: returns a specific tenant_usage object

tenant_usage object:
    * tenant_usage.total_memory_mb_usage: sum of memory_mb * hours for all instances in tenant for this period
    * tenant_usage.total_local_gb_usage: sum of local_gb * hours for all instances in tenant for this period
    * tenant_usage.total_vcpus_usage: sum of vcpus * hours for all instances in tenant for this period
    * tenant_usage.total_hours: sum of all instance hours for this period
    * tenant_usage.server_usages: A detailed list of server_usages, which describe the usage of a specific server

For larger instances db tables, indexes on instance.launched_at and instance.terminated_at should significantly help performance.
This commit is contained in:
Vishvananda Ishaya
2011-09-01 00:16:34 +00:00
committed by Tarmac
parent 218c1ddae0 cccef48f10
commit 8149659e4c
1 changed files with 2 additions and 3 deletions
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5
bin/instance-usage-audit
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@@ -102,9 +102,8 @@ if __name__ == '__main__':
logging.setup()
begin, end = time_period(FLAGS.instance_usage_audit_period)
print "Creating usages for %s until %s" % (str(begin), str(end))
instances = db.instance_get_active_by_window(context.get_admin_context(),
begin,
end)
ctxt = context.get_admin_context()
instances = db.instance_get_active_by_window_joined(ctxt, begin, end)
print "%s instances" % len(instances)
for instance_ref in instances:
usage_info = utils.usage_from_instance(instance_ref,