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問題
ユーザーは、サーバーの起動/再起動時に以下のエラーを受け取ります:
ERROR [main][DialectDetector:147] com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure__The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server. [Sanitized] com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure__The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server. [Sanitized]