-Xms and -Xmx should be equal - reduced -Xmx to 128M

Makefile

@@ -70,7 +70,7 @@ jdk8: useradd elasticsearch-service
 	install -d -m755 -o elasticsearch -g elasticsearch /var/log/elasticsearch
 
 	sed -e 's|^-Xms.*|-Xms128m|' -i /etc/elasticsearch/jvm.options
-	sed -e 's|^-Xmx.*|-Xms1g|' -i /etc/elasticsearch/jvm.options
+	sed -e 's|^-Xmx.*|-Xms128m|' -i /etc/elasticsearch/jvm.options
 
 	@echo "d /run/elasticsearch 755 elasticsearch elasticsearch -" > /usr/lib/tmpfiles.d/elasticsearch.conf
 	@echo "vm.max_map_count = 262144" >> /etc/sysctl.d/elasticsearch.conf