Hi Fred, I can see it when I go to Datastore Statistics page and choose an individual entity. On about half of my entities I can see the property and half I don't see the property. The first four of my entities alphabetically have it and the fifth doesn't. appid is my-lms-test Steve
On Tue, Jan 11, 2011 at 1:42 PM, frew <[email protected]> wrote: > As Ikai said, this was added in support of making mapper more > efficient. It's supposed to be completely invisible, so its visibility > is a bug. Can you let me know where you're seeing it (admin console? > API?) and your appid? Also, in case you're worried, Google is picking > up the bill for this property, so it shouldn't affect your storage > costs any. > > Thanks > -Fred > > On Jan 11, 12:29 pm, "Ikai Lan (Google)" > <[email protected]<ikai.l%[email protected]> > > > wrote: > > The scatter property is being used to better distribute work across > > different worker shards. Prior to the scatter property, there were > several > > incidents where work was unevenly distributed across tasks. > > > > -- > > Ikai Lan > > Developer Programs Engineer, Google App Engine > > Blogger:http://googleappengine.blogspot.com > > Reddit:http://www.reddit.com/r/appengine > > Twitter:http://twitter.com/app_engine > > > > On Tue, Jan 11, 2011 at 11:06 AM, Stephen Johnson < > [email protected]>wrote: > > > > > > > > > > > > > > > > > Thanks Ikai, > > > I've been using mapreduce for a long time and have never seen > properties > > > added to our own entities like that. I'll take a look and see what it's > > > being used for so I understand it better and if this side-effect is > > > documented anywhere since it is strange and a little disconcerting to > see > > > unknown properties popping up on your own entities. > > > Thanks, > > > Steve > > > > > On Tue, Jan 11, 2011 at 11:42 AM, Ikai Lan (Google) < > > > [email protected] <ikai.l%[email protected]> < > ikai.l%[email protected] <ikai.l%[email protected]>>> wrote: > > > > >> It's a property used by the Mapper API: > > > > >> > http://www.google.com/codesearch?q=__scatter__+package:http://appengi....googlecode\.com&origq=__scatter__&btnG=Search+Trunk<http://www.google.com/codesearch?q=__scatter__+package:http://appengi....googlecode%5C.com&origq=__scatter__&btnG=Search+Trunk> > <http://www.google.com/codesearch?q=__scatter__+package:http://appengi...> > > > > >> -- > > >> Ikai Lan > > >> Developer Programs Engineer, Google App Engine > > >> Blogger:http://googleappengine.blogspot.com > > >> Reddit:http://www.reddit.com/r/appengine > > >> Twitter:http://twitter.com/app_engine > > > > >> On Tue, Jan 11, 2011 at 9:32 AM, Stephen Johnson < > [email protected]>wrote: > > > > >>> Checking my datastore statistics today I noticed that a new property > > >>> has magically appeared named __scatter__ of type ShortBlob. I don't > > >>> have any property defined with this name and it has the App Engine > > >>> format of __xyz__ naming so I'm assuming it's something Google has > > >>> introduced. However, this is a little disconcerting that it is > showing > > >>> up in datastore statistics and no mention of this has been provided > by > > >>> google. Also, it doesn't show up in the datastore viewere. Is anyone > > >>> else seeing this magic property? Should I be concerned? Anyone know > > >>> it's purpose? > > > > >>> -- > > >>> 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]><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]><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. 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