Avoid bandwidth usage db query in notifications when the virt driver does not support collecting such data

Bug #1764392 reported by Balazs Gibizer on 2018-04-16
6
This bug affects 1 person
Affects Status Importance Assigned to Milestone
OpenStack Compute (nova)
Low
Unassigned

Bug Description

The notify_usage_exist() function always query the DB to get the bandwidth usage data. But such data is only available if the CONF.bandwidth_poll_interval is set to a positive number (600 is the default) and the virt driver supports such data collection. Today only xenapi driver supports this data collection. So it would make sense to avoid the DB query when it is known that such data is not available.

Changed in nova:
importance: Undecided → Low
tags: added: notifications
Balazs Gibizer (balazs-gibizer) wrote :

There is an ML post asking about the support of the whole bandwidth usage codepath in the xenapi driver. http://lists.openstack.org/pipermail/openstack-dev/2018-April/129397.html

Matt Riedemann (mriedem) on 2018-04-19
Changed in nova:
status: New → Confirmed
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