Some useful commands for ElasticSearch.

es_cmd_lists.md

• Show status

curl 'localhost:9200/_cat/indices?v'

• Show indexes

curl -XGET localhost:9200/_alias?pretty

• Update settings

curl --header "Content-Type: application/json;" \
     -XPUT "http://localhost:9200/_settings" -d'
{
    "index.search.slowlog.threshold.query.debug": "0s",
    "index.search.slowlog.threshold.fetch.debug": "0s",
    "index.indexing.slowlog.threshold.index.debug": "0s"
}'