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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 mysql.com by Unknown author, 2 years ago
via Stack Overflow by slavig
, 2 years ago
Access denied for user 'root'@'localhost' (using password: YES)
via grokbase.com by Unknown author, 1 year ago
via mysql.com by Unknown author, 1 year ago
via osdir.com by Unknown author, 1 year ago
via GitHub by andrus
, 7 months ago
Access denied for user 'root'@'localhost' (using password: NO)
java.sql.SQLException: Access denied for user 'root'@'localhost' (using
password: YES)	at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:1086)	at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:4237)	at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:4169)