curl http://<host>:9200/_cat/health
curl http://<host>:9200/_cluster/state?pretty
curl http://<host>:9200/_nodes/stats/process?pretty
ES_HOME: /usr/share/elasticsearch
ES_DATA: /var/lib/elasticsearch
ES_LOGS: /var/log/elasticsearch
export ES_HOME=/usr/share/elasticsearch
export ES_DATA=/var/lib/elasticsearch
export ES_LOGS=/var/log/elasticsearch
./usr/share/elasticsearch/bin/elasticsearch -d
... more to come