| Summary: | CapacityFilter in capacity_filter.py does not calculate correctly a free space | ||
|---|---|---|---|
| Product: | Red Hat OpenStack | Reporter: | Shinobu KINJO <skinjo> |
| Component: | openstack-cinder | Assignee: | Gorka Eguileor <geguileo> |
| Status: | CLOSED ERRATA | QA Contact: | nlevinki <nlevinki> |
| Severity: | medium | Docs Contact: | |
| Priority: | medium | ||
| Version: | 6.0 (Juno) | CC: | adahms, eharney, geguileo, sgotliv, tbarron, yeylon |
| Target Milestone: | --- | Keywords: | ZStream |
| Target Release: | 6.0 (Juno) | Flags: | skinjo:
needinfo?
(sgotliv) |
| Hardware: | Unspecified | ||
| OS: | Unspecified | ||
| Whiteboard: | |||
| Fixed In Version: | openstack-cinder-2014.2.4-4.el7ost | Doc Type: | Enhancement |
| Doc Text: |
With this update, the scheduler now calculates reserved space against total space instead of against the remaining free space. This is achieved by multiplying reserved_percentage by total_space. This update synchronizes the method for calculating reserved space in Red Hat Enterprise Linux OpenStack Platform 6 with that of Red Hat Enterprise Linux OpenStack Platform 7 and above.
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Story Points: | --- |
| Clone Of: | Environment: | ||
| Last Closed: | 2016-03-10 17:06:44 UTC | Type: | Bug |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
*** Bug 1302584 has been marked as a duplicate of this bug. *** We will be synchronizing the free space calculation in OSP6 with OSP7 and later, so that reserved_percentage is used against total space instead of remaining free space. As written in commet#12 customer will test it on his env. fix is in openstack-cinder-2014.2.4-6.el7ost.noarch Since the problem described in this bug report should be resolved in a recent advisory, it has been closed with a resolution of ERRATA. For information on the advisory, and where to find the updated files, follow the link below. If the solution does not work for you, open a new bug report. https://rhn.redhat.com/errata/RHBA-2016-0436.html |
Description of problem: In order to calculate free space correctly, free needs to be based on free_space value. Is it possible to backport CapacityFilter class in [2] to Juno based OSP? [1] openstack-cinder-2014.2.4-2.el7ost.noarch 29 class CapacityFilter(filters.BaseHostFilter): 30 """CapacityFilter filters based on volume host's capacity utilization.""" 31 32 def host_passes(self, host_state, filter_properties): ... 55 reserved = float(host_state.reserved_percentage) / 100 56 free = math.floor(free_space * (1 - reserved)) [2] openstack-cinder-2015.1.2-5.el7ost.noarch 31 class CapacityFilter(filters.BaseHostFilter): 32 """CapacityFilter filters based on volume host's capacity utilization.""" 33 34 def host_passes(self, host_state, filter_properties): ... 50 free_space = host_state.free_capacity_gb 51 total_space = host_state.total_capacity_gb 52 reserved = float(host_state.reserved_percentage) / 100 ... 78 free = free_space - math.floor(total * reserved) Rgds, Shinobu Version-Release number of selected component (if applicable): [1] openstack-cinder-2014.2.4-2.el7ost.noarch.rpm How reproducible: Steps to Reproduce: 1. 2. 3. Actual results: Expected results: Additional info: