Holger with guille, damien and two students we are looking at how to improve the deployment of pharo and you scenario is really interesting.
Stef On Sat, Apr 15, 2017 at 7:59 AM, Holger Freyther <[email protected]> wrote: > > > On 15. Apr 2017, at 00:23, Juraj Kubelka <[email protected]> > wrote: > > > > Hi, > > Hey! > > >> As this is a server application and I run multiple VMs with the same > image and there is no home directory I would prefer that no information is > persisted at all. Can this be done? Have there been any changes in Pharo6 > in regard to this? > > > > Do you think that checking if `FileIdentifier home` exist solves the > issue? > > > > Can we detect headless state? > > > >> > >> It also seems to change from Fuel->Ston for the identifier? Is this > intended? > > > > Yes, this is intended and should not produce problems. > > Thank you for your quick reply. What I find odd is that this error seems > to be coming from within: > > > GlobalIdentifierStonPersistence(GlobalIdentifierPersistence)>>ensure: > self shouldCallPreviousPersistence ifTrue: [ > previousPersistence ensure: existingDictionary ]. > > So there is the "Fuel" Persistence and we want to migrate things. Fair > enough but in the migration we do have: > > > >>load: existingDictionary > "It loads stored information into existingDictionary." > self preferences exists ifFalse: [ > "This is a new computer, so we define new computer UUID. > User still has to agree about sending data if it is not > has been done yet." > ^ self save: existingDictionary ]. > > > So self preferences exists is true and now the old (non-existent data?) is > being saved and we crash and exit on save. > > * Why isn't the migration from Ston to Fuel more explicit? > * Why is "load" trying to save? > * Why is "ensure:" used instead of load? > * Not sure why "self preferences exists" seems to end in true? > > > > have a nice weekend > > holger > > > > >> FileLocator(AbstractFileReference)>>ensureCreateDirectory > >> GlobalIdentifierFuelPersistence(GlobalIdentifierPersistence) > >>ensureDirectory > >> GlobalIdentifierFuelPersistence(GlobalIdentifierPersistence)>>save: > >> GlobalIdentifierFuelPersistence(GlobalIdentifierPersistence)>>load: > >> GlobalIdentifierFuelPersistence(GlobalIdentifierPersistence)>>ensure: > >> GlobalIdentifierStonPersistence(GlobalIdentifierPersistence)>>ensure: > >> GlobalIdentifier>>ensure > > > > >
