Ikai, how to check/clear session data? Thanks, Peter On Dec 7, 7:53 pm, "Ikai L (Google)" <[email protected]> wrote: > Toby, > > There's another thing to be aware of: sessions are backed with the > datastore. If you have sessions enabled, you may want to write a scheduled > task that clears session data. > > > > > > On Mon, Dec 7, 2009 at 9:00 AM, Eric Rannaud <[email protected]> wrote: > > On Mon, Dec 7, 2009 at 2:20 AM, Toby <[email protected]> wrote: > > > thank you for your update. In fact I was suspecting the index or other > > > management data. But it is hard to believe that it leads to such a big > > > overhead. I mean it is enormous to have an index that is 10 times more > > > than the actual data, don't you think so? > > > If you look at the article, it doesn't seem that out of place. > > Remember that by default, two indexes are built for every property, > > EntitiesByProperty ASC and EntitiesByProperty DESC. If you look at the > > number of fields in the corresponding tables (see article), and if > > your entity has 5-10 fields, I would not be surprised by such an > > overhead. > > > Marking properties as non-indexable, if you don't need the systematic > > indexing that Google does, will help save a lot of space. > > > > Furthermore in the datastore statistics they already list so called > > > "Metadata". It is consuming about 44% of the space. I think that this > > > is the index, is it not? > > > I don't think it is, no. I believe it refers to other kinds of > > metadata (see article linked earlier in the thread). Index disk space > > usage is, I believe, nowhere explicit. > > > Eric. > > > -- > > > You received this message because you are subscribed to the Google Groups > > "Google App Engine for Java" group. > > To post to this group, send email to > > [email protected]. > > To unsubscribe from this group, send email to > > [email protected]<google-appengine-java%2B > > [email protected]> > > . > > For more options, visit this group at > >http://groups.google.com/group/google-appengine-java?hl=en. > > -- > Ikai Lan > Developer Programs Engineer, Google App Engine
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