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  1. ,
    Expert tip

    MySQL doesn't support some types of characters (such as emojis) with the utf8 encoding. You need to be on MySQL 5.5+ and force utf8mb4 (everywhere, client and server). You can do this sending the query "SET NAMES utf8mb4". Check this https://goo.gl/3E2qzg

  2. ,

    Make sure you are using InnoDB storage engine and READ-COMMITTED transaction isolation level and increase the database server innodb_lock_wait_timeout variable to about 500.

Solutions on the web

via Stack Overflow by user3107496
, 1 year ago
Access denied for user 'icu'@'41.222.179.166' (using password: YES)
via Stack Overflow by user7293086
, 1 year ago
Access denied for user ********* (using password: YES)
via Stack Overflow by Chars Davy
, 7 months ago
via Stack Overflow by Curbe
, 1 year ago
Access denied for user 'localhost'@'localhost' (using password: YES)
via Stack Overflow by Kadenge Gungwa
, 1 year ago
via Stack Overflow by Zirui Wang
, 6 months ago
Access denied for user 'root'@'localhost' (using password: YES)
java.sql.SQLException: Access denied for user 'icu'@'41.222.179.166' (using password: YES)	at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:996)	at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3887)	at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3823)	at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:870)	at com.mysql.jdbc.MysqlIO.proceedHandshakeWithPluggableAuthentication(MysqlIO.java:1659)	at com.mysql.jdbc.MysqlIO.doHandshake(MysqlIO.java:1206)	at com.mysql.jdbc.ConnectionImpl.coreConnect(ConnectionImpl.java:2234)	at com.mysql.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:2265)	at com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2064)	at com.mysql.jdbc.ConnectionImpl.(ConnectionImpl.java:790)	at com.mysql.jdbc.JDBC4Connection.(JDBC4Connection.java:44)	at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)	at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)	at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)	at java.lang.reflect.Constructor.newInstance(Unknown Source)	at com.mysql.jdbc.Util.handleNewInstance(Util.java:377)	at com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:395)	at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:325)	at java.sql.DriverManager.getConnection(Unknown Source)	at java.sql.DriverManager.getConnection(Unknown Source)	at undefined.SqlTest.connectToDb(SqlTest.java:33)	at undefined.SqlTest.main(SqlTest.java:49)