Enterprise Manager is unable to connect to the Postgres server.
The following message appears in the IntroscopeEnterpriseManager.log:
'[WARN] [CheckDatabase.Thread1] [Manager.com.timestock.tess.util.DbUtils] database inaccessible; will check later'
Postgres logs for the corresponding time frame reveal messages like the following, complaining that the Time Zone is not correct.
'FATAL: invalid value for parameter "TimeZone": <SOME INCORRECT TIME ZONE>'
Enterprise Manager(EM) JVM is picking up an incorrect Time Zone from the machine where EM is running.
Users need to set a correct time zone for the Enterprise Manager JVM. To set a correct default time zone, use '-Duser.timezone=<REPLACE WITH TIME ZONE>' for the JVM parameter to 'lax.nl.java.option.additional' in '<EM HOME>\Introscope_Enterprise_Manager.lax' file.