Bug 1369511

Summary:	NUMATopologyFilter raise exception and not continue filter next node when there is no wanted pagesize in current filtered host
Product:	Red Hat OpenStack	Reporter:	Aviv Guetta <aguetta>
Component:	openstack-nova	Assignee:	Sahid Ferdjaoui <sferdjao>
Status:	CLOSED ERRATA	QA Contact:	Prasanth Anbalagan <panbalag>
Severity:	medium	Docs Contact:
Priority:	medium
Version:	8.0 (Liberty)	CC:	awaugama, berrange, dasmith, eglynn, kchamart, sbauza, sferdjao, sgordon, srevivo, vromanso
Target Milestone:	---	Keywords:	ZStream
Target Release:	8.0 (Liberty)
Hardware:	x86_64
OS:	Linux
Whiteboard:
Fixed In Version:	openstack-nova-12.0.4-9.el7ost	Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2016-11-14 19:56:34 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:
Embargoed:

Description Aviv Guetta 2016-08-23 15:18:25 UTC

Description of problem:
Backport of bug https://bugs.launchpad.net/nova/+bug/1473308 to RHOSP8.
Fix (Mitaka): 
https://review.openstack.org/#/c/200630/

Version-Release number of selected component (if applicable):
nova-scheduler: 12.0.4.4

Steps to Reproduce:
1.Create a VM with NUMATopologyFilter (configured by Host Aggergate and Flavor)
2.If the first compute doesn't match the hugepage size, an exception will raise and the operation is abort (no host available). 

Actual results:
an exception will raise and operation is abort (no host available)

Expected results:
scheduler should continue to the next host and should .

Additional info:
Fix is available for Mitaka since March, It's a very short modification in the code.

Comment 5 Prasanth Anbalagan 2016-11-08 16:55:24 UTC

node 2 gets selected when node 1 does not satisfy the hugepages criteria

# yum list installed | grep openstack-nova
openstack-nova-api.noarch            1:12.0.4-16.el7ost      @rhelosp-8.0-puddle
openstack-nova-cert.noarch           1:12.0.4-16.el7ost      @rhelosp-8.0-puddle
openstack-nova-common.noarch         1:12.0.4-16.el7ost      @rhelosp-8.0-puddle
openstack-nova-compute.noarch        1:12.0.4-16.el7ost      @rhelosp-8.0-puddle
openstack-nova-conductor.noarch      1:12.0.4-16.el7ost      @rhelosp-8.0-puddle
openstack-nova-console.noarch        1:12.0.4-16.el7ost      @rhelosp-8.0-puddle
openstack-nova-novncproxy.noarch     1:12.0.4-16.el7ost      @rhelosp-8.0-puddle
openstack-nova-scheduler.noarch      1:12.0.4-16.el7ost      @rhelosp-8.0-puddle


node1
=====
# cat /proc/meminfo | grep Huge
AnonHugePages:    157696 kB
HugePages_Total:     256
HugePages_Free:      256
HugePages_Rsvd:        0
HugePages_Surp:        0
Hugepagesize:       2048 kB

node2
======
# cat /proc/meminfo | grep Huge
AnonHugePages:   1468416 kB
HugePages_Total:       4
HugePages_Free:        2
HugePages_Rsvd:        0
HugePages_Surp:        0
Hugepagesize:    1048576 kB
[root@seal27 ~(keystone_admin)]# 

# nova flavor-show 100
+----------------------------+---------------------------------------------------------------+
| Property                   | Value                                                         |
+----------------------------+---------------------------------------------------------------+
| OS-FLV-DISABLED:disabled   | False                                                         |
| OS-FLV-EXT-DATA:ephemeral  | 0                                                             |
| disk                       | 5                                                             |
| extra_specs                | {"hw:cpu_policy": "dedicated", "hw:mem_page_size": "1048576"} |
| id                         | 100                                                           |
| name                       | m1.pinned                                                     |
| os-flavor-access:is_public | True                                                          |
| ram                        | 2048                                                          |
| rxtx_factor                | 1.0                                                           |
| swap                       |                                                               |
| vcpus                      | 1                                                             |
+----------------------------+---------------------------------------------------------------+

# nova list
+--------------------------------------+------+--------+------------+-------------+---------------------+
| ID                                   | Name | Status | Task State | Power State | Networks            |
+--------------------------------------+------+--------+------------+-------------+---------------------+
| b4345499-9c68-48d8-9149-dc276775ef7a | vm1  | ACTIVE | -          | Running     | public=172.24.4.228 |
+--------------------------------------+------+--------+------------+-------------+---------------------+
# nova show vm1 | grep host
| OS-EXT-SRV-ATTR:host                 | node2                             |
| OS-EXT-SRV-ATTR:hypervisor_hostname  | node2
| hostId                               | 92570924d2576283fd550dbb94c707509298cbfe9f62c6eb8cf2cabc |
#

Comment 7 errata-xmlrpc 2016-11-14 19:56:34 UTC

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-2016-2713.html