I think I'll follow suit and also stick with prefixing memcache keys with my own "namespaces" until there's more info on the real namespaces.
On 17 February 2010 14:53, Eli Jones <eli.jo...@gmail.com> wrote: > Nickolas, > > If you poke around in the google/appengine/api/memcache folder and look at > the __init__.py file, you see in the comments that namespace is just a > string. > > Sometimes poking around in the .py files can clarify some things.. though, > it won't tell you if something will change of course. > > Since I'm not clear on what namespace ultimately does, I just stick to > setting memcache keynames = Model.kind() + Model.key().name() since that > should be unique for each application. > > > On Tue, Feb 16, 2010 at 10:22 PM, Nickolas Daskalou <n...@daskalou.com>wrote: > >> >> On 17 February 2010 14:14, Ikai L (Google) <ika...@google.com> wrote: >> >>> The implementation isn't going to change if it works >> >> >> Is there a list of what's currently working (and hence won't change), and >> what's not working (and hence may change in the future)? >> >> Also, is the namespace simply a string (without restrictions)? >> >> Nick >> >> >> >>> - it's just that certain methods involving namespaces return unexpected >>> results. For instance, grab_tail seems to be working incorrectly, pulling >>> from the global LRU rather than the nested namespace LRU. >>> >>> >>> On Tue, Feb 16, 2010 at 7:01 PM, Nickolas Daskalou <n...@daskalou.com>wrote: >>> >>>> Thanks for that explanation Ikai. >>>> >>>> Since the details are still being worked out, should we not use the >>>> namespace argument, in case its implementation suddenly changes? >>>> >>>> If it is indeed safe to use now (and the namespace argument actually >>>> does "work" and is not just there as a placeholder), what is the data type? >>>> A string? >>>> >>>> >>>> >>>> On 17 February 2010 08:57, Ikai L (Google) <ika...@google.com> wrote: >>>> >>>>> Nickolas, I thought the same thing when I first read about namespaces. >>>>> As it turns out, namespaces with App Engine's memcache instance are not >>>>> the >>>>> same thing as prefixes. They are actual namespaces with their own LRU in >>>>> addition to the global LRU. The details are still being worked out, >>>>> though, >>>>> but the idea is that you'll have features like constant time flushing of a >>>>> namespace and nested namespaces, something you can't do with the >>>>> distribution of Memcached that is available on the internet. This version >>>>> of >>>>> Memcache was necessary to ensure that users could not stomp on other >>>>> users' >>>>> memcache data. >>>>> >>>>> On Mon, Feb 15, 2010 at 8:11 PM, Nickolas Daskalou >>>>> <n...@daskalou.com>wrote: >>>>> >>>>>> What's the difference between key_prefix and namespace when using the >>>>>> Memcache.*_multi() functions? >>>>>> >>>>>> Maybe my understanding of namespace is wrong, but I thought namespace >>>>>> was basically a (string) prefix on the cache key. >>>>>> >>>>>> -- >>>>>> You received this message because you are subscribed to the Google >>>>>> Groups "Google App Engine" group. >>>>>> To post to this group, send email to >>>>>> google-appeng...@googlegroups.com. >>>>>> To unsubscribe from this group, send email to >>>>>> google-appengine+unsubscr...@googlegroups.com<google-appengine%2bunsubscr...@googlegroups.com> >>>>>> . >>>>>> For more options, visit this group at >>>>>> http://groups.google.com/group/google-appengine?hl=en. >>>>>> >>>>> >>>>> >>>>> >>>>> -- >>>>> Ikai Lan >>>>> Developer Programs Engineer, Google App Engine >>>>> http://googleappengine.blogspot.com | http://twitter.com/app_engine >>>>> >>>>> -- >>>>> You received this message because you are subscribed to the Google >>>>> Groups "Google App Engine" group. >>>>> To post to this group, send email to google-appengine@googlegroups.com >>>>> . >>>>> To unsubscribe from this group, send email to >>>>> google-appengine+unsubscr...@googlegroups.com<google-appengine%2bunsubscr...@googlegroups.com> >>>>> . >>>>> 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 google-appeng...@googlegroups.com. >>>> To unsubscribe from this group, send email to >>>> google-appengine+unsubscr...@googlegroups.com<google-appengine%2bunsubscr...@googlegroups.com> >>>> . >>>> For more options, visit this group at >>>> http://groups.google.com/group/google-appengine?hl=en. >>>> >>> >>> >>> >>> -- >>> Ikai Lan >>> Developer Programs Engineer, Google App Engine >>> http://googleappengine.blogspot.com | http://twitter.com/app_engine >>> >>> -- >>> You received this message because you are subscribed to the Google Groups >>> "Google App Engine" group. >>> To post to this group, send email to google-appeng...@googlegroups.com. >>> To unsubscribe from this group, send email to >>> google-appengine+unsubscr...@googlegroups.com<google-appengine%2bunsubscr...@googlegroups.com> >>> . >>> 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 google-appeng...@googlegroups.com. >> To unsubscribe from this group, send email to >> google-appengine+unsubscr...@googlegroups.com<google-appengine%2bunsubscr...@googlegroups.com> >> . >> 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 google-appeng...@googlegroups.com. > To unsubscribe from this group, send email to > google-appengine+unsubscr...@googlegroups.com<google-appengine%2bunsubscr...@googlegroups.com> > . > 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. 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