Install & Run Elasticsearch
1. Configure the TMP dir by editing the below value in this file /etc/elasticsearch/jvm.options
-Djava.io.tmpdir=/var/log/elasticsearch
2. After that edit the system configuration to enable swappiness
sysctl -w vm.swappiness=1 >> /etc/sysctl.conf
sysctl -p
3. And finally restart the service
systemctl restart elasticsearch
