kimmking commented on issue #4146: springboot can not connect mysql 8.0.19 by sharding proxy URL: https://github.com/apache/incubator-shardingsphere/issues/4146#issuecomment-585653593 > proxy4.0.0 > `[2020-02-10 19:28:30,434] [ERROR] [DruidDataSource:2755] ===> create connection SQLException, url: jdbc:mysql://10.16.0.21:3307/sharding_db?serverTimezone=UTC&useSSL=false&allowPublicKeyRetrieval=true, errorCode 0, state 08001 java.sql.SQLNonTransientConnectionException: CLIENT_PLUGIN_AUTH is required at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:110) ~[mysql-connector-java-8.0.19.jar:8.0.19] at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:97) ~[mysql-connector-java-8.0.19.jar:8.0.19] at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:89) ~[mysql-connector-java-8.0.19.jar:8.0.19] at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:63) ~[mysql-connector-java-8.0.19.jar:8.0.19]` the driver in your project should be changed to 5.1.47 too.
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