"Invalid block device mapping" error on a creating >200 instances
Affects | Status | Importance | Assigned to | Milestone | ||
---|---|---|---|---|---|---|
Mirantis OpenStack | Status tracked in 10.0.x | |||||
10.0.x |
Confirmed
|
High
|
Ivan Kolodyazhny | |||
8.0.x |
Won't Fix
|
High
|
Ivan Kolodyazhny | |||
9.x |
Won't Fix
|
High
|
Ivan Kolodyazhny |
Bug Description
Problem discovered on MOS 8.0 ISO #361
When I start a large amount of instances (in my case, 250), a big part of them failed with error like "Build of instance 070995e4-
Message: Build of instance 070995e4-
Code: 500
Details: File "/usr/lib/
Environment:
* 50 baremetal nodes
* Ceph *is not* used
- Cinder LVM over iSCSI for volumes is enabled, rest of checkboxes are disabled
* Ceilometer, Murano and Sahara *are* installed
* Each node has 32142MB RAM, 12 CPU
Steps to reproduce:
* Upload an image with Ubuntu Trusty
* Proceed to Horizon
* Proceed to 'Instances', click on 'Launch instance'
* Select m1.small flavour (1 vCPU, root disk - 20GB, RAM - 2048 MB)
* Set 'Boot from image (creates a new volume)'
* Choose uploaded image
* Set device size to 20 GB
* Ensure that 'Delete on Terminate' checkbox is active
* Set 250 instances
* Choose network
* Click on 'Launch'
Expected results:
* All instances are up and running
Real result:
* Only 81 instance started. 169 failed with error above
* Cinder has 235 created volumes available or in-use
Due to bug https:/
https:/
Please find cinder and nova output attached.
Related upstream bug: https:/
tags: | added: move-to-mu |
tags: | added: release-notes |
tags: |
added: 8.0 release-notes-done removed: release-notes |
description: | updated |
We don't have such large environment, but we are going to give it a try on smaller scale, keeping the number of VMs and volumes used