Re: Phoebus and Archiver Appliance

["Kasemir, Kay via Tech-talk" <tech-talk@aps.anl.gov>]

Hi:

Check the manual for archive settings, https://phoebus-doc.readthedocs.io/en/latest/preference_properties.html#trends-databrowser3, specifically these 3:

# Suggested data servers...
org.csstudio.trends.databrowser3/urls

# Default data sources for newly added channels...
org.csstudio.trends.databrowser3/archives

# When opening existing data browser plot,...
org.csstudio.trends.databrowser3/use_default_archives

In your setup, you must have use_default_archives=true and archives=jdbc::oracle::...


So when you create a plot, you might search for PVs, add, view and save them with the AA data source:

org.csstudio.trends.databrowser3/urls=pbraw://claraserv2.dl.ac.uk:17668/retrieval/
 

But when you later re-open the *.plt file, use_default_archives=true ignores the saved archive data sources and instead uses the default data sources from
org.csstudio.trends.databrowser3/archives, which point to some jdbc::oracle URL and then fail to connect to Oracle:

        at oracle.jdbc.driver.T4CConnection.logon(T4CConnection.java:774)
 
==> Define org.csstudio.trends.databrowser3/archives to the same value as your 
org.csstudio.trends.databrowser3/urls, and consider use_default_archives=false.

The idea for use_default_archives=true is to offer an 'update path' when you change your archiving setup.
You can then set use_default_archives=true, and previously saved *.plt files will use the current default archive data sources instead of the then obsolete saved settings.

-Kay