Save and test your Elasticsearch data source connection to verify Grafana can reach your instance.
Estimated time: 1 min
Test the connection
Now that you’ve configured the connection details, save the data source and verify that Grafana can successfully connect to your Elasticsearch instance.
Click Save & test.
A successful connection displays the message: Elasticsearch data source is healthy.
Common connection issues
Symptom
Likely cause
Solution
Connection refused
Elasticsearch not running or wrong URL
Verify the URL and port (default 9200) and that Elasticsearch is accepting connections
Unauthorized (401)
Invalid credentials or API key
Verify the username and password, or regenerate the API key with read access
Forbidden (403)
Missing cluster privileges
Grant the monitor, view_index_metadata, and read privileges to the user or API key
No index found
Incorrect index name or pattern
Verify the index name and, if you use a time pattern, that matching indices exist
