From 367ab6212334c0510c8b836e0ae0252323f6537e Mon Sep 17 00:00:00 2001
From: Clark Boylan <clark.boylan@gmail.com>
Date: Fri, 18 Oct 2013 16:59:47 -0700
Subject: [PATCH] Make ES Heap Size configurable.

wiki.o.o is much smaller than our typical elasticsearch nodes. For it to
use elasticsearch it needs to allocate a much smaller heap. Make the
heap size configurable (keep the 16g default) and set the heap size to
1g for wiki.o.o.

Change-Id: I0c5fb4865eb07c0fa5bbe4cf698a9f0e9ea9f2fc
---
 manifests/init.pp                                            | 5 +++--
 .../elasticsearch.default.erb                                | 2 +-
 2 files changed, 4 insertions(+), 3 deletions(-)
 rename files/elasticsearch.default => templates/elasticsearch.default.erb (96%)

diff --git a/manifests/init.pp b/manifests/init.pp
index 560edc5..661ffe9 100644
--- a/manifests/init.pp
+++ b/manifests/init.pp
@@ -16,7 +16,8 @@
 #
 class elasticsearch (
   $discover_nodes = ['localhost'],
-  $version = '0.20.5'
+  $version = '0.20.5',
+  $heap_size = '16g'
 ) {
   # install java runtime
   package { 'java7-runtime-headless':
@@ -96,7 +97,7 @@ class elasticsearch (
 
   file { '/etc/default/elasticsearch':
     ensure  => present,
-    source  => 'puppet:///modules/elasticsearch/elasticsearch.default',
+    content => template('elasticsearch/elasticsearch.default.erb'),
     replace => true,
     owner   => 'root',
     group   => 'root',
diff --git a/files/elasticsearch.default b/templates/elasticsearch.default.erb
similarity index 96%
rename from files/elasticsearch.default
rename to templates/elasticsearch.default.erb
index 1d1aac6..97ca450 100644
--- a/files/elasticsearch.default
+++ b/templates/elasticsearch.default.erb
@@ -3,7 +3,7 @@
 #ES_GROUP=elasticsearch
 
 # Heap Size (defaults to 256m min, 1g max)
-ES_HEAP_SIZE=16g
+ES_HEAP_SIZE=<%= heap_size %>
 
 # Heap new generation
 #ES_HEAP_NEWSIZE=