1703110 – uneven instance placement on compute nodes

Bug 1703110 - uneven instance placement on compute nodes

Summary: uneven instance placement on compute nodes

Keywords:
Status:	CLOSED DUPLICATE of bug 1701334
Alias:	None
Product:	Red Hat OpenStack
Classification:	Red Hat
Component:	openstack-nova
Sub Component:
Version:	13.0 (Queens)
Hardware:	Unspecified
OS:	Unspecified
Priority:	unspecified
Severity:	unspecified
Target Milestone:	---
Target Release:	---
Assignee:	Kashyap Chamarthy
QA Contact:	OSP DFG:Compute
Docs Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+	depends on / blocked

Reported:	2019-04-25 14:21 UTC by Eduard Barrera
Modified:	2023-09-18 00:16 UTC (History)
CC List:	8 users (show)
Fixed In Version:
Doc Type:	If docs needed, set a value
Doc Text:
Clone Of:
Environment:
Last Closed:	2019-05-24 13:32:25 UTC
Target Upstream Version:
Embargoed:

Attachments	(Terms of Use)

Description Eduard Barrera 2019-04-25 14:21:31 UTC

Description of problem:

we are having a problem where the scheduler is not distrubuting correctly the instances across all the available compute node:

There is a group of nodes where no instances are scheduled:


2019-04-24 15:11:51.734 1 DEBUG nova.scheduler.filter_scheduler [req-1c573bd7-30f9-434a-96e8-ac1fc6668c58 db59947485d447e1a7c58477d94d8805 a2764e78bb344151877bde6ffdd713e2 - default default] 

Weighed [
(overcloud-compute-std-9.localdomain, overcloud-compute-std-9.localdomain)   ram: 863930MB disk: 854016MB io_ops: 0 instances: 8,

(overcloud-compute-std-13.localdomain, overcloud-compute-std-13.localdomain) ram: 843450MB disk: 841728MB io_ops: 0 instances: 9, 
(overcloud-compute-std-14.localdomain, overcloud-compute-std-14.localdomain) ram: 720570MB disk: 768000MB io_ops: 0 instances: 15, 
(overcloud-compute-std-1.localdomain, overcloud-compute-std-1.localdomain)   ram: 720570MB disk: 768000MB io_ops: 0 instances: 15, 
(overcloud-compute-std-6.localdomain, overcloud-compute-std-6.localdomain)   ram: 720570MB disk: 768000MB io_ops: 0 instances: 15, 
(overcloud-compute-std-12.localdomain, overcloud-compute-std-12.localdomain) ram: 720570MB disk: 768000MB io_ops: 0 instances: 15, 
(overcloud-compute-std-11.localdomain, overcloud-compute-std-11.localdomain) ram: 720570MB disk: 768000MB io_ops: 0 instances: 15, 
(overcloud-compute-std-0.localdomain, overcloud-compute-std-0.localdomain)   ram: 862906MB disk: 841728MB io_ops: 1 instances: 9, 

Instances snot scheduled on this nodes:

(overcloud-compute-std-15.localdomain, overcloud-compute-std-15.localdomain) ram: 1027770MB disk: 944128MB io_ops: 0 instances: 0, 
(overcloud-compute-std-5.localdomain, overcloud-compute-std-5.localdomain)   ram: 1027770MB disk: 944128MB io_ops: 0 instances: 0,
(overcloud-compute-std-8.localdomain, overcloud-compute-std-8.localdomain)   ram: 1027770MB disk: 944128MB io_ops: 0 instances: 0, 
(overcloud-compute-std-3.localdomain, overcloud-compute-std-3.localdomain)   ram: 1027770MB disk: 944128MB io_ops: 0 instances: 0, 
(overcloud-compute-std-7.localdomain, overcloud-compute-std-7.localdomain)   ram: 1027770MB disk: 944128MB io_ops: 0 instances: 0, 
(overcloud-compute-std-4.localdomain, overcloud-compute-std-4.localdomain)   ram: 1027770MB disk: 944128MB io_ops: 0 instances: 0, 
(overcloud-compute-std-2.localdomain, overcloud-compute-std-2.localdomain)   ram: 1027770MB disk: 942080MB io_ops: 0 instances: 0, 
(overcloud-compute-std-10.localdomain, overcloud-compute-std-10.localdomain) ram: 1027770MB disk: 944128MB io_ops: 0 instances: 0
] _get_sorted_hosts /usr/lib/python2.7/site-packages/nova/scheduler/filter_scheduler.py:424



Version-Release number of selected component (if applicable):
OSP13

How reproducible:
always

Steps to Reproduce:
Via horizon or an application consuming openstack api

Actual results:
Instances not distributed to all compute nods

Expected results:
Instances  distributed to all compute nods


There is no cells, no host aggregates

Comment 3 Matthew Booth 2019-05-24 13:32:25 UTC


*** This bug has been marked as a duplicate of bug 1701334 ***

Comment 4 Red Hat Bugzilla 2023-09-18 00:16:08 UTC

The needinfo request[s] on this closed bug have been removed as they have been unresolved for 120 days

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