Java heap space error

[jesu nazarene]

Dear Friends,

I need to migrate postgreSQL database to MySQL database, were i am using MySQL migration tool kit, I can connect postgres and MySQL but at the time bulk transaction it showing the "java heap space" error.

I am using the MySQL product of MySQL Migration Toolkit. In this, i have selected the source of PostgreSQL database and selected the destination MySQL both are connected and its working fine when i have migrate small amount of records but when i try to migrate more number of recods (ex: 440000 records) it showing the "java heap space error". Can any one please advice me how to do this process.

Thank you in advance