Correlation is not causation. The warning is not slowing down your code. This harmless warning is generated during the static initialization of some protobuffer code. That static initialization is happening, because your application is being loaded in a new JVM by a loading request<http://code.google.com/appengine/kb/java.html#What_Is_A_Loading_Request>. We discussed performance implications of loading requests in a recent App Engine blog post<http://googleappengine.blogspot.com/2009/12/request-performance-in-java.html> .
If you're seeing long loading requests, please enable precompilation<http://code.google.com/appengine/kb/java.html#How_Is_Google_Improving_Loading_Requests> as a first step. It's not a cure-all, but it typically provides a significant improvement. On Fri, Dec 11, 2009 at 2:46 AM, fhtino <fht...@gmail.com> wrote: > Yes. I'm quite sure. A couple of examples. > > A tipical request with normal execution time and without > FinalizableReferenceQueue > 12-10 10:40PM 32.484 /url.... 200 83ms 160cpu_ms 85api_cpu_ms > > A request with FinalizableReferenceQueue: > 12-10 10:36PM 22.306 /url.... 200 4888ms 7280cpu_ms 85api_cpu_ms > > > fabrizio > > > On Dec 11, 6:17 am, Rusty Wright <rwright.li...@gmail.com> wrote: > > Are you sure the slowness is caused by whatever is generating this > exception? > > > > > > > > fhtino wrote: > > > Vince, > > > > > ok, it's harmless, but the response is very slow. 5000ms or more > > > instead of 200ms. > > > In my case it's a problem. > > > > > Any idea/solution? > > > > > fabrizio > > > > > On Dec 5, 7:07 pm, Vince Bonfanti <vbonfa...@gmail.com> wrote: > > >> The exception is harmless. Add this to your logging.properties file to > hide > > >> it: > > > > >> > com.google.appengine.repackaged.com.google.common.base.FinalizableReference > Queue.level=WARNING > > > > >> There was previous discussion of this (search > > >> for FinalizableReferenceQueue). > > > > >> Vince > > > > > -- > > > > > 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 > google-appengine-j...@googlegroups.com. > > > To unsubscribe from this group, send email to > google-appengine-java+unsubscr...@googlegroups.com<google-appengine-java%2bunsubscr...@googlegroups.com> > . > > > For more options, visit this group athttp:// > 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 > google-appengine-j...@googlegroups.com. > To unsubscribe from this group, send email to > google-appengine-java+unsubscr...@googlegroups.com<google-appengine-java%2bunsubscr...@googlegroups.com> > . > 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 google-appengine-j...@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en.
