...
The globalproperty/setting releasetestinghelper.maxPatientCount controls the number of patients sent to the new system. The default is 100.
If you experience "java.sql.SQLException: Cannot convert value '0000-00-00 00:00:00' from column x to TIMESTAMP" you need to append &zeroDateTimeBehavior=convertToNull to connection.url in openmrs-runtime.properties. See http://stackoverflow.com/questions/782823/handling-datetime-values-0000-00-00-000000-in-jdbc
Resources
File feature requests and bug reports in the JIRA project for this module: RELTEST
...