org.springframework.dao.RecoverableDataAccessException: ### Error querying database. Cause: com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure
The last packet successfully received from the server was 1,243,528 milliseconds ago. The last packet sent successfully to the server was 0 milliseconds ago. ### The error may exist in URL [jar:file:/opt/...] ### The error may involve defaultParameterMap ### The error occurred while setting parameters ### SQL: ... ### Cause: com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure
The last packet successfully received from the server was 1,243,528 milliseconds ago. The last packet sent successfully to the server was 0 milliseconds ago. ; SQL []; Communications link failure
The last packet successfully received from the server was 1,243,528 milliseconds ago. The last packet sent successfully to the server was 0 milliseconds ago.; nested exception is com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure
The last packet successfully received from the server was 1,243,528 milliseconds ago. The last packet sent successfully to the server was 0 milliseconds ago.