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I am experiencing with this same one and this is a critical issue with my production pipeline. Urgently seeking assistance for resolution.
Caused by: com.mysql.cj.exceptions.CJCommunicationsException: 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.
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.negotiateSSLConnection(NativeProtocol.java:342)
at com.mysql.cj.protocol.a.NativeAuthenticationProvider.connect(NativeAuthenticationProvider.java:167)
at com.mysql.cj.protocol.a.NativeProtocol.connect(NativeProtocol.java:1350)
at com.mysql.cj.NativeSession.connect(NativeSession.java:157)
at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:953)
at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:823)
... 30 more
Caused by: javax.net.ssl.SSLHandshakeException: Received fatal alert: protocol_version
at sun.security.ssl.Alert.createSSLException(Alert.java:131)
at sun.security.ssl.Alert.createSSLException(Alert.java:117)
at sun.security.ssl.TransportContext.fatal(TransportContext.java:318)
at sun.security.ssl.Alert$AlertConsumer.consume(Alert.java:293)
at sun.security.ssl.TransportContext.dispatch(TransportContext.java:185)
at sun.security.ssl.SSLTransport.decode(SSLTransport.java:152)
at sun.security.ssl.SSLSocketImpl.decode(SSLSocketImpl.java:1401)
at sun.security.ssl.SSLSocketImpl.readHandshakeRecord(SSLSocketImpl.java:1309)
at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:440)
at com.mysql.cj.protocol.ExportControlled.performTlsHandshake(ExportControlled.java:317)
at com.mysql.cj.protocol.StandardSocketFactory.performTlsHandshake(StandardSocketFactory.java:188)
at com.mysql.cj.protocol.a.NativeSocketConnection.performTlsHandshake(NativeSocketConnection.java:97)
at com.mysql.cj.protocol.a.NativeProtocol.negotiateSSLConnection(NativeProtocol.java:333)
... 35 more
answered 2 months ago
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