curl https://localhost:9200/ cluster/health

curl https://localhost:9200/_cluster/health | jq .
{
  "cluster_name": "elasticsearch",
  "status": "yellow",
  "timed_out": false,
  "number_of_nodes": 2,
  "number_of_data_nodes": 2,
  "active_primary_shards": 14,
  "active_shards": 14,
  "relocating_shards": 0,
  "initializing_shards": 0,
  "unassigned_shards": 14,
  "delayed_unassigned_shards": 0,
  "number_of_pending_tasks": 0,
  "number_of_in_flight_fetch": 0,
  "task_max_waiting_in_queue_millis": 0,
  "active_shards_percent_as_number": 50
}

See also

• Elasticsearch, installation, ELK, Elastic X-Pack, elasticsearch.yml, logs, ECK, Elasticsearch curl URLs, Elastisearch REST APIs, /_cat/, /_cluster/, /_xpack/, QueryShardException, Elasticsearch index, ELK backup and restore, elasticsearch-cli, Elasticsearch versions, ElasticSearch Snapshot Lifecycle Management (SLM), Low disk watermark, Elasticsearch storage, Elasticsearch users, Elasticsearch roles, search context, shards, Elastic Cloud, Elastic Licensing, ElasticSearch alerts, ESQL