First of all, i realized that part of the problem was the range of the query (my data objects/entities grew very fast so i didn't that i was retrieving 1000 entities per query). But my pb is that i don't really "get it" ... the difference in time between queries is very different from moment to moment, although it's the same query.(10 or 25 for ex...) This is more of a curiosity from an "engineer" point of view :P Second, i understand the DeadlineExcededEx but why 500 error code ? Is it related to my inadequate way of making complex queries? is that from my app or may it be because of a high load to datastore ? I say this because it seams to me that the latencies are lower around 8:00 GMT (morning in eastern Europe) and rise quite enough after 17:00 GMT (afternoon in East Europe).
Thanks... On Oct 21, 10:24 pm, "Ikai Lan (Google)" <[email protected]> wrote: > What does the query look like? Query performance can sometimes be affected > by the "shape" of the data - that is, if the data changes, it may change the > number of indexes we need to zig-zag over. > > -- > 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, Oct 19, 2010 at 10:44 AM, Ice13ill <[email protected]> wrote: > > The queries (or any other operation for that matter...) have grate > > latencies (or 500 error code) for about 20 percent of the time. > > For example the same query that yesterday or 2 days ago took about 2 > > seconds, now takes between 5 and 25 seconds (the SAME query). The app > > can work fine, with low latencies and then, out of nowhere, operations > > take 5 to 25 secs more than normal (witch lead to > > DeadlineExcededException). > > > On Oct 18, 9:41 pm, Miroslav Genov <[email protected]> wrote: > > > Does the selected kind has any relationships to another kind ? > > > Do you have many conditional statements in your query ? > > > > I don't think that anyone could help you with this information. Please > > > provide some more information about the definition of your entities and > > > also whether you are using JDO, low level api or some other persistence > > > framework. > > > > On 18.10.2010 г. 20:37 ч., Ice13ill wrote: > > > > > Hello, I need some help from the app engine team. I'm having problems > > > > when accessing the datastore for my application. The runquery requests > > > > cat take about 10 to 25 seconds, and sometimes i get > > > > DeadlineExcededException or 500 error code. > > > > > I was wondering if this is happening to other developers or just me > > > > (or very few). My app id is ebas-gdf. Please advice. > > > -- > > 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. -- 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]. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en.
