Please install OpenJDK before you install Elasticsearch.
# Debian / Ubuntu apt-get install openjdk-7-jre
# Red Hat / CentOS / Fedora yum install java-1.7.0-openjdk
# SuSE / SLES zypper install java-1.7.0-openjdk
Elasticsearch can be downloaded on the following website:
Important note: It's not possible to upgrade from Elasticsearch 1.x to 2.x because the old mapping of Bloonix is not compatible with Elasticsearch 2.x! You can use Elasticsearch 2.x if it's a fresh installation.
For security reasons the parameter network.bind_host should be changed in /etc/elasticsearch/elasticsearch.yml, so that Elasticsearch doesn't listen on all IP addresses. Example:
/etc/init.d/elasticsearch start # or systemctl start elasticsearch.service
Don't forget to initialize the Bloonix template for Elasticsearch. You can find more information here: Bloonix-WebGUI