1. Install elasticsearch 2.3.4 Download elasticsearch 2.3.4mkdir /opt/setupcd /opt/setupwget https://download.elastic.co/elasticsearch/release/org/elasticsearch/distribution/tar/elasticsearch/2.3.4/elasticsearch-2.3.4.tar.gz Unzip elasticsearchmkdir -p /data/es-datamkdir -p /opt/log/es-logcd /opt/setuptar xvfz elasticsearch-2.3.4.tar.gzmv elasticsearch-2.3.4 /opt/cd /opt/elasticsearch-2.3.4/confnano elasticsearch.yml Create servicenano /etc/init.d/elasticsearch chmod +x /etc/init.d/elasticsearchupdate-rc.d elasticsearch defaultsupdate-rc.d elasticsearch enable Tạo user và phân quyền groupadd esuseradd -r -M -d /opt/elasticsearch-2.3.4 -s /bin/bash espasswd es (Đặt password phức tạp)chown -R es:es /opt/elasticsearch-2.3.4/configchown -R es:es /db/es-datachown -R es:es /opt/log/es-log Set limit openfile nano /etc/security/limits.conf# allow user ‘es’ mlockalles… Elasticsearch import data from databases