install-elasticsearch.sh

#!/bin/sh
#Installs ElasticSearch. Expects that jdk is not installed on the server.
#Before starting, make a directory in /mnt/es and sudo chmod 666 /mnt/es (r+w)

#See https://gist.github.com/aliakhtar/c74b4cb0c8dfa95ebf4a for jdk.sh

./jdk.sh

wget https://download.elasticsearch.org/elasticsearch/release/org/elasticsearch/distribution/deb/elasticsearch/2.2.0/elasticsearch-2.2.0.deb

sudo dpkg -i elastic*.deb

rm -f elastic*.deb

sudo update-rc.d elasticsearch defaults 95 10

sudo swapoff --all

echo "INFORMATION:"
echo "Make sure the IO scheduler is using noop or deadline if usign SSD."
echo "For an array of SSDs, use noop, for a single SSD, use deadline."
echo "To check, run: cat /sys/block/xvdb/queue/scheduler (replacing xvdb with id of your ssd (from lsblk )"


echo "Settings to change in /etc/default/elasticsearch : \n"

echo "ES_HEAP_SIZE=3500m" #don't use 3.5g, it cannot handle decimals

echo "MAX_LOCKED_MEMORY=unlimited"

echo "DATA_DIR=/mnt/es"

echo "CONF_FILE=/etc/elasticsearch/elasticsearch.yml"

echo "Settings to change in /etc/elasticsearch/elasticsearch.yml : \n"

echo "cluster.name: Your_Cluster"

echo "To start: sudo service elasticsearch start"