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production.md

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To run in production

On Ubuntu:

echo "vm.max_map_count=262144" | sudo tee -a /etc/sysctl.conf
sudo sysctl -w vm.max_map_count=262144
echo 'GRUB_CMDLINE_LINUX="cgroup_enable=memory swapaccount=1"' | sudo tee -a /etc/default/grub
sudo update-grub
sudo reboot

NOTE: This increases the virtual memory maps as well as allows docker to disable memory swappiness.

$ docker run -d -p 9200:9200 \
                --name elastic \
                --cap-add=IPC_LOCK --ulimit nofile=65536:65536 --ulimit memlock=-1:-1 \
                --memory="4g" --memory-swap="4g" --memory-swappiness=0 \
                -e ES_JAVA_OPTS="-Xms2g -Xmx2g" \
                blacktop/elasticsearch \
                -Ebootstrap.memory_lock=true

NOTE: This will limit the container memory to 4GB and the ES heap size to 2GB as well as allow ES to lock the memory.