Script / Service: Add ES_MIN_MEM and ES_MAX_MEM, closes #156

bin/elasticsearch.in.sh

@@ -1,9 +1,16 @@
 CLASSPATH=$CLASSPATH:$ES_HOME/lib/*
 
+if [ "x$ES_MIN_MEM" = "x" ]; then
+    ES_MIN_MEM=256
+fi
+if [ "x$ES_MAX_MEM" = "x" ]; then
+    ES_MAX_MEM=1024
+fi
+
 # Arguments to pass to the JVM
 JAVA_OPTS=" \
-        -Xms128M \
-        -Xmx1G \
+        -Xms${ES_MIN_MEM}m \
+        -Xmx${ES_MAX_MEM}m \
         -Djline.enabled=true \
         -XX:+AggressiveOpts \
         -XX:+UseParNewGC \

bin/service/elasticsearch.conf

@@ -1,4 +1,6 @@
 set.default.ES_HOME=<Path to ElasticSearch Home>
+set.default.ES_MIN_MEM=256
+set.default.ES_MAX_MEM=1024
 
 #********************************************************************
 # Wrapper Timeout Properties
@@ -46,10 +48,10 @@ wrapper.java.additional.8=-XX:+CMSParallelRemarkEnabled
 wrapper.java.additional.9=-XX:+HeapDumpOnOutOfMemoryError
 
 # Initial Java Heap Size (in MB)
-wrapper.java.initmemory=128
+wrapper.java.initmemory=%ES_MIN_MEM%
 
 # Maximum Java Heap Size (in MB)
-wrapper.java.maxmemory=1024
+wrapper.java.maxmemory=%ES_MAX_MEM%
 
 # Application parameters.  Add parameters as needed starting from 1
 wrapper.app.parameter.1=org.elasticsearch.bootstrap.Bootstrap