18:19:04.765 [Druid-ConnectionPool-Create-1962657198] ERROR c.a.d.p.DruidDataSource - [run,2803] - create connection SQLException, url: jdbc:mysql://47.100.92.253:3306/smarterp?useUnicode=true&characterEncoding=utf8&zeroDateTimeBehavior=convertToNull&useSSL=false&serverTimezone=GMT%2B8, errorCode 0, state 08S01 com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure The last packet successfully received from the server was 18,899 milliseconds ago. The last packet sent successfully to the server was 18,899 milliseconds ago. at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174) at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64) at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836) at com.mysql.cj.jdbc.ConnectionImpl.(ConnectionImpl.java:456) at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246) at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198) at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:156) at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:227) at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150) at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1659) at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1723) at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2801) Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure The last packet successfully received from the server was 18,899 milliseconds ago. The last packet sent successfully to the server was 18,899 milliseconds ago. at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62) at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) at java.lang.reflect.Constructor.newInstance(Constructor.java:423) at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61) at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105) at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151) at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167) at com.mysql.cj.protocol.a.NativeProtocol.readMessage(NativeProtocol.java:544) at com.mysql.cj.protocol.a.NativeProtocol.checkErrorMessage(NativeProtocol.java:708) at com.mysql.cj.protocol.a.NativeProtocol.sendCommand(NativeProtocol.java:647) at com.mysql.cj.protocol.a.NativeProtocol.sendCommand(NativeProtocol.java:134) at com.mysql.cj.NativeSession.sendCommand(NativeSession.java:311) at com.mysql.cj.NativeSession.configureClientCharacterSet(NativeSession.java:475) at com.mysql.cj.jdbc.ConnectionImpl.initializePropsFromServer(ConnectionImpl.java:1324) at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:967) at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:826) ... 9 common frames omitted Caused by: java.net.SocketException: Connection reset at java.net.SocketInputStream.read(SocketInputStream.java:210) at java.net.SocketInputStream.read(SocketInputStream.java:141) at com.mysql.cj.protocol.ReadAheadInputStream.fill(ReadAheadInputStream.java:107) at com.mysql.cj.protocol.ReadAheadInputStream.readFromUnderlyingStreamIfNecessary(ReadAheadInputStream.java:150) at com.mysql.cj.protocol.ReadAheadInputStream.read(ReadAheadInputStream.java:180) at java.io.FilterInputStream.read(FilterInputStream.java:133) at com.mysql.cj.protocol.FullReadInputStream.readFully(FullReadInputStream.java:64) at com.mysql.cj.protocol.a.SimplePacketReader.readHeader(SimplePacketReader.java:63) at com.mysql.cj.protocol.a.SimplePacketReader.readHeader(SimplePacketReader.java:45) at com.mysql.cj.protocol.a.TimeTrackingPacketReader.readHeader(TimeTrackingPacketReader.java:52) at com.mysql.cj.protocol.a.TimeTrackingPacketReader.readHeader(TimeTrackingPacketReader.java:41) at com.mysql.cj.protocol.a.MultiPacketReader.readHeader(MultiPacketReader.java:54) at com.mysql.cj.protocol.a.MultiPacketReader.readHeader(MultiPacketReader.java:44) at com.mysql.cj.protocol.a.NativeProtocol.readMessage(NativeProtocol.java:538) ... 17 common frames omitted