How to Avoid Lock wait timeout exceeded exception.?

Question

    java.sql.SQLException: Lock wait timeout exceeded; try restarting tra
nsaction at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:1055)
        at com.m         


        

Answer 1

Make sure the database tables are using InnoDB storage engine and READ-COMMITTED transaction isolation level.

You can check it by SELECT @@GLOBAL.tx_isolation, @@tx_isolation; on mysql console.

If it is not set to be READ-COMMITTED then you must set it. Make sure before setting it that you have SUPER privileges in mysql.

You can take help from http://dev.mysql.com/doc/refman/5.0/en/set-transaction.html.

By setting this I think your problem will get solved.

Thank You.