We recommend a minimum of 8 Gb ram.
Jobs Over 1 Million Records
If you have a large job (anything over 1 million records) the last step before running the job is increasing heap memory. Click the "Use Specific JVM arguments" check box and double click the "–Xmx1024mb argument". Change this to
-Xmx4G to ensure proper performance when processing very large jobs over 1 million records.