You set elasticsearch.hosts: ["http://localhost:9200"] but Kibana fails to connect. What is a likely cause?

medium📝 Debug Q6 of Q15

Elasticsearch - Kibana and Visualization

You set elasticsearch.hosts: ["http://localhost:9200"] but Kibana fails to connect. What is a likely cause?

AKibana port 5601 is blocked by firewall

BKibana uses HTTPS by default

CKibana.yml file is missing

DElasticsearch service is not running on localhost

Step-by-Step Solution

Solution:

Step 1: Check Elasticsearch availability
If Elasticsearch is not running on localhost:9200, Kibana cannot connect.
Step 2: Eliminate other causes
Firewall blocking Kibana port or missing config file would cause different errors; Kibana uses HTTP by default.
Final Answer:
Elasticsearch service is not running on localhost -> Option D
Quick Check:
Elasticsearch must run for Kibana connection [OK]

Quick Trick: Ensure Elasticsearch is running before starting Kibana [OK]

Common Mistakes:

MISTAKES

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