openstack/openstack-virtual-baremetal
Code Issues Proposed changes

Use xlarge flavor for undercloud nodes

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Minimal requirements for undercloud nodes are described here:
https://images.rdoproject.org/docs/baremetal/requirements.html

Specifically, it says:

"The undercloud VM or baremetal machine requires: [...] 16 GB free
memory"

It's not just documentation that asks to change default flavor. If you
try to deploy using tripleo-quickstart in RDO cloud / OVB, you will hit
both tripleo-validations failures like:

There are 4 cores in the system, but there should be at least 8.
The RAM on the undercloud node is 7822 MB, the minimal recommended value
is 16384 MB.

And even when validations are ignored, the resulting environment fails
because mariadb (or another crucial service) is killed by oom-killer. I
personally experienced mariadb killed and as a result, heat-api
failing when listing stacks with ECONNREFUSED from db server, which
finally resulted in overcloud deployment failure.

xlarge is the smallest default flavor that provides 16gb ram, and so
this patch uses this flavor.
This commit is contained in:
Ihar Hrachyshka 2018-01-24 13:13:51 -08:00
parent 9908855a08
commit 79788ab96a
4 changed files with 4 additions and 4 deletions
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2
doc/source/deploy/baremetal.rst
View File

@ -89,7 +89,7 @@ method, which creates most of the resources needed automatically.
#. Boot a VM to serve as the undercloud::
nova boot undercloud --flavor m1.large --image centos7 --nic net-id=[tenant net uuid] --nic net-id=[provisioning net uuid]
nova boot undercloud --flavor m1.xlarge --image centos7 --nic net-id=[tenant net uuid] --nic net-id=[provisioning net uuid]
neutron floatingip-create [external net uuid]
neutron port-list
neutron floatingip-associate [floatingip uuid] [undercloud instance port id]

2
environments/base.yaml
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@ -72,7 +72,7 @@ parameter_defaults:
# Nova flavor to use for the undercloud instance
# Type: string
undercloud_flavor: m1.large
undercloud_flavor: m1.xlarge
# Image to boot as the undercloud instance
# Type: string

2
templates/env.yaml.example
View File

@ -17,7 +17,7 @@ parameters:
# QuintupleO-specific params ignored by virtual-baremetal.yaml
undercloud_name: undercloud
undercloud_image: CentOS-7-x86_64-GenericCloud
undercloud_flavor: m1.large
undercloud_flavor: m1.xlarge
external_net: external
public_net_shared: false
provision_net_shared: false

2
templates/quintupleo.yaml
View File

@ -96,7 +96,7 @@ parameters:
undercloud_flavor:
type: string
default: m1.large
default: m1.xlarge
description: Nova flavor to use for the undercloud instance
undercloud_image: