openstack
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tripleo-heat-templates
Code Issues Proposed changes

Increase reserved memory for computes when enabling DVR 

This patch adds an example increased value for NovaReservedHostMemory
and some documentation around tuning this value when DVR is enabled.

Closes-Bug: #1630583

Change-Id: I2718d72d307a1c90061606e5f36c96f964cd2fb5
This commit is contained in:
Brent Eagles 2016-10-05 15:36:00 -02:30
parent ff86a856a6
commit eec4587bc7
1 changed files with 13 additions and 0 deletions
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13
environments/neutron-ovs-dvr.yaml
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@ -37,3 +37,16 @@ parameter_defaults:
# NeutronL3HA can be returned to false. All new systems should be deployed
# with NeutronL3HA set to false.
NeutronL3HA: false
# Enabling DVR deploys additional services to the compute nodes that through
# normal operation will consume memory. The amount required is roughly
# proportional to the number of Neutron routers that will be scheduled to
# that host. It is necessary to reserve memory on the compute nodes to avoid
# memory issues when creating instances that are connected to routed
# networks. The current expected consumption is 50 MB per router in addition
# to the base reserved amount. Deployers should refer to existing
# documentation, release notes, etc. for additional information on estimating
# an appropriate value. The provided value here is based on an estimate of 10
# routers and is an example value *only* and should be reviewed and modified
# if necessary before deploying.
NovaReservedHostMemory: 2560