magento2 - Magento 2.4.0 - Getting Error Could not validate a connection to Elasticsearch. No alive nodes found in your cluster - Magento Stack Exchange
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curl: (7) Failed to connect to localhost port 9200: Connection refused. Even after having configured /etc/elasticsearch/elasticsearch.yml - Stack Overflow
magento2 - curl: (7) Failed to connect to localhost port 9200: Connection refused elasticsearch is unable to start or load - Stack Overflow