In doc for java: Note: At present, you cannot configure custom error handlers for some error conditions. Specifically, you cannot customize the 404 response page when no servlet mapping is defined for a URL, the 403 quota error page, or the 500 server error page that appears after an App Engine internal error.
I vaguely remember a few patches ago, there's a way to specify error page for the 500 "internal error"? Is it true? If so how to setup the pages? I am starting to see this 500 error more consistently in certain sequence of event (but the log never shows the 500, I suppose this happens before hitting the JVM). Sequence of event: 1. HTTP post that triggers an immediate Task Queue task 2. The Task Queue job is immediately called but timing out (it calls some external URL and can block) 3. The HTTP call in step 1 returns successfully and the client javascript reload the page, thus triggering another request. This request triggers the 500 error. I am guessing request #3 give 500 because the server is busy on #2 and app engine couldn't spin up another instance? I am setting the queue delay to 10 seconds and see if this will alleviate the problem. -- 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.
