While i using my little fancy program to simulate millions of data in MySQL database for volumn testing, my program straight hit the following error after execute few seconds.

Caused by: com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: 
User 'mkyong' has exceeded the 'max_questions' resource (current value: 1000)
	at com.mysql.jdbc.Util.handleNewInstance(Util.java:406)
	at com.mysql.jdbc.Util.getInstance(Util.java:381)
	at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:1030)
	at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:956)
	at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3536)
	at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3468)
	at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:1957)
	at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:2107)
	at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2648)
	at com.mysql.jdbc.PreparedStatement.executeInternal(PreparedStatement.java:2086)
	at com.mysql.jdbc.PreparedStatement.executeUpdate(PreparedStatement.java:2371)
	at com.mysql.jdbc.PreparedStatement.executeUpdate(PreparedStatement.java:2289)
	at com.mysql.jdbc.PreparedStatement.executeUpdate(PreparedStatement.java:2274)
	... 49 more

This is MySQL feature of monitor the database resources. The “max_questions” means “Number of queries the user can execute within one hour”, obviously my user account only can execute 1000 queries within one hour. I believe this is a very good feature for MySQL in production to stop the resource spamming, but it’s just not a good feature for my volume testing :p


What else? Just turn it off. The following article is showing how to turn it off

How to modify the ‘max_questions’ resource value in MySQL?