Is any possible without key changing after restoring my data in same app ?
Best Regards Tom Wu 2010/9/11 Tim Hoffman <[email protected]> > Hi > > In theory reference properties should be ok, (list properties holding > a list of keys - especially as strings would have a problem). > > Have you compared the key in the reference property and the key of the > target before and after the restore. > It may be because you using id's rather than key names? But I am not > sure without running some tests. > > I would work out what is being changed and you may find a custom > loader for bulkloader may be required to move your > dataset between appids. > > T > > On Sep 11, 10:24 pm, Francois MASUREL <[email protected]> wrote: > > Yep, I was restoring to another appId. > > > > Does that mean that when you're storing entity keys as a "reference" > > property you can't backup/restore to another appId ? > > > > What is the best practice then ? Should we create some kind of generated > > UUID and use it as key for our entities then ? > > > > François > > > > > > > > On Sat, Sep 11, 2010 at 16:17, Tim Hoffman <[email protected]> wrote: > > > As to the keys changing, where you restoring to an instance with the > > > same appid ? > > > > > If not the keys have to change, and you might find problems where you > > > store keys in list properties. > > > > > T > > > > > On Sep 11, 10:12 pm, Tim Hoffman <[email protected]> wrote: > > > > Hi > > > > > > I am actually using appcfg.py download_data and upload_data with > great > > > > success with 65,000 entities. > > > > > > Which is pretty much the same thing. > > > > > > I have found you may need to play around with the batch size settings > > > > if you have particularly large entities. > > > > > > T > > > > > > On Sep 11, 10:01 pm, Francois Masurel <[email protected]> wrote: > > > > > > > Hello everybody, > > > > > > > I've tried to do a full bulkloader --dump and --restore of one app > to > > > > > another one and it failed miserably. > > > > > > > First, I had a quite a few "Backing off" errors during export which > > > > > took more than 30 minutes for about 6000 small entities. > > > > > > > Then when I restored it, I lost about 1000 entities it said it > > > > > couldn't restore without explanations. > > > > > > > And then I realized that all entities keys had been changed. So > all > > > > > my relations between entities were lost. > > > > > > > Did I do something wrong ? > > > > > > > Thanx for your help. > > > > > > > Francois > > > > > -- > > > You received this message because you are subscribed to the Google > Groups > > > "Google App Engine" group. > > > To post to this group, send email to [email protected] > . > > > To unsubscribe from this group, send email to > > > [email protected]<google-appengine%[email protected]><google-appengine%2Bunsubscrib > [email protected]> > > > . > > > For more options, visit this group at > > >http://groups.google.com/group/google-appengine?hl=en. > > -- > You received this message because you are subscribed to the Google Groups > "Google App Engine" group. > To post to this group, send email to [email protected]. > To unsubscribe from this group, send email to > [email protected]<google-appengine%[email protected]> > . > For more options, visit this group at > http://groups.google.com/group/google-appengine?hl=en. > > -- You received this message because you are subscribed to the Google Groups "Google App Engine" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en.
