/lib/errors.py - Diff - snf-ganeti - Greek Research and Technology Network's projects

Revision 0623d351 lib/errors.py

     class QuitGanetiException(Exception):
       """Signal that Ganeti that it must quit.
       This is not necessarily an error (and thus not a subclass of GenericError),
       but it's an exceptional circumstance and it is thus treated. This instance
       should be instantiated with two values. The first one will specify whether an
       error should returned to the caller, and the second one will be the returned
       result (either as an error or as a normal result).
       This is not necessarily an error (and thus not a subclass of
       GenericError), but it's an exceptional circumstance and it is thus
       treated. This instance should be instantiated with two values. The
       first one will specify the return code to the caller, and the second
       one will be the returned result (either as an error or as a normal
       result). Usually only the leave cluster rpc call should return
       status True (as there it's expected we quit), every other call will
       return status False (as a critical error was encountered).
       Examples::
         # Return a result of "True" to the caller, but quit ganeti afterwards
         raise QuitGanetiException(False, True)
         raise QuitGanetiException(True, None)
         # Send an error to the caller, and quit ganeti
         raise QuitGanetiException(True, "Fatal safety violation, shutting down")
         raise QuitGanetiException(False, "Fatal safety violation, shutting down")
       """

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