If you get the error
SCHEDULER-451 Database check failed, database is not useable. SCHEDULER-452 Database does not correctly store test values: !"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|}~\ (written value) \t\r\n !"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_`abcdefghijklmnopqrstuvwxyz{|}~\\ (read value)
then the parameter standard_conforming_strings is turn on.
This parameter is turn on by default in PostgreSQL 9.1.
The JobScheduler expected at the time that this parameter is off.
We will change this behaviour (see http://www.sos-berlin.com/jira/browse/JS-781).
Until that happens, you can change the value of standard_conforming_strings in the postgresql.conf file