From 80786e0d2390eef3f1a9404f42a6cb3306d38314 Mon Sep 17 00:00:00 2001
From: gordon chung <gord@live.ca>
Date: Wed, 23 Jul 2014 14:06:31 -0400
Subject: [PATCH] enable multiple collector workers

currently, a single worker thread writes received samples into
database. this is fine for most occasions but during message
spikes, it is not enough. this patch increase amount of workers to
half the number of processors (so we can ensure ceilometer maintains
lightweight design)

this will also help validate mulitple worker setup works.

Partial-Bug: #1336755
Change-Id: I33037f2f9ebfda43238e5cd0cff75adbed65d055
---
 lib/ceilometer | 1 +
 1 file changed, 1 insertion(+)

diff --git a/lib/ceilometer b/lib/ceilometer
index 7bd1421118..4030aca9a1 100644
--- a/lib/ceilometer
+++ b/lib/ceilometer
@@ -154,6 +154,7 @@ function configure_ceilometer {
 
     if [ "$CEILOMETER_BACKEND" = 'mysql' ] || [ "$CEILOMETER_BACKEND" = 'postgresql' ] ; then
         iniset $CEILOMETER_CONF database connection `database_connection_url ceilometer`
+        iniset $CEILOMETER_CONF DEFAULT collector_workers $(( ($(nproc) + 1) / 2 ))
     else
         iniset $CEILOMETER_CONF database connection mongodb://localhost:27017/ceilometer
         configure_mongodb