openstack/tripleo-heat-templates
Code Issues Proposed changes

Disable RabbitMQ busy-wait for dirty cpu and dirty i/o schedulers

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This aligns the defaults with the recommendations from upstream:

https://www.rabbitmq.com/runtime.html#busy-waiting

Change-Id: Ief7fb44f53b55a73d76ef3aa29dcd17194a6fc98
This commit is contained in:
John Eckersberg 2021-03-22 12:17:09 -04:00 committed by Michele Baldessari
parent 690c7eda33
commit ecff7b7056
2 changed files with 14 additions and 4 deletions
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9
deployment/rabbitmq/rabbitmq-container-puppet.yaml
View File

@ -76,10 +76,11 @@ parameters:
RabbitAdditionalErlArgs:
description:
Additional parameters passed to the Erlang subsystem. The string
needs to be enclosed in quotes twice. We default to +sbwt none
in order to have the erlang vm be less busy on spinlocks, but
we allow a simple way of overriding it.
default: "'+sbwt none'"
needs to be enclosed in quotes twice. We default to '+sbwt none
+sbwtdcpu none +sbwtdio none' in order to have the erlang vm be
less busy on spinlocks, but we allow a simple way of overriding
it.
default: "'+sbwt none +sbwtdcpu none +sbwtdio none'"
type: string
MonitoringSubscriptionRabbitmq:
default: 'overcloud-rabbitmq'

9
releasenotes/notes/erl-sbwtdcpu-sbwtdio-b26506a0430480dc.yaml Normal file
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@ -0,0 +1,9 @@
---
other:
- |
The default value of the parameter 'RabbitAdditionalErlArgs' was
updated to include the new options '+sbwtdcpu none +sbwtdio none'
which disables busy-wait for dirty cpu schedulers and dirty i/o
schedulers respectively. This aligns with the flags recommended
by RabbitMQ upstream
(https://www.rabbitmq.com/runtime.html#busy-waiting).