From 0d59488780da6269dc71072581f075f6859606ea Mon Sep 17 00:00:00 2001
From: Alex Schultz <aschultz@redhat.com>
Date: Thu, 6 Apr 2017 15:36:51 -0600
Subject: Enable splay for os-collect-config

At scale, having the os-collect-config instances all check in at the
same time can cause performance problems. This change enables splay and
sets it to a default maximum random sleep of 30 seconds prior to the
os-collect-config polling.

Change-Id: Iab8b51f4e5fb4727b8aa7e081f5cbfcbf11f7fcb
Depends-On: I88f623c9e8db9ed4a186918206a63faec8f7f673
Closes-Bug: #1677314
---
 puppet/compute-role.yaml | 10 ++++++++++
 1 file changed, 10 insertions(+)

(limited to 'puppet/compute-role.yaml')

diff --git a/puppet/compute-role.yaml b/puppet/compute-role.yaml
index ebdd762d..c6031ea7 100644
--- a/puppet/compute-role.yaml
+++ b/puppet/compute-role.yaml
@@ -127,6 +127,15 @@ parameters:
     type: string
     description: Command which will be run whenever configuration data changes
     default: os-refresh-config --timeout 14400
+  ConfigCollectSplay:
+    type: number
+    default: 30
+    description: |
+      Maximum amount of time to possibly to delay configuation collection
+      polling. Defaults to 30 seconds. Set to 0 to disable it which will cause
+      the configuration collection to occur as soon as the collection process
+      starts.  This setting is used to prevent the configuration collection
+      processes from polling all at the exact same time.
   UpgradeInitCommand:
     type: string
     description: |
@@ -149,6 +158,7 @@ resources:
     metadata:
       os-collect-config:
         command: {get_param: ConfigCommand}
+        splay: {get_param: ConfigCollectSplay}
     properties:
       image: {get_param: NovaImage}
       image_update_policy:
-- 
cgit 1.2.3-korg