Ok.. these are some of solutions implemented about the issue:
1. eliminate the ugly error page thrown by GAE .. and it was easy, setting
correctly our Guestbook.JSP file to show our personal errorPage (of course,
the design can be better)
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<%@ page errorPage="/errorPage.jsp" isErrorPage="true" %>
<https://lh5.googleusercontent.com/-r95hITXAf04/UXCgTWF3DFI/AAAAAAAAC0E/hes2VQbBy7g/s1600/igguestbook_issue02.jpg>
2.- to try eliminate or diminish"Datastore Read Operations", we have
implemented using "memcache"..but as you will see, not happens something
better..
<https://lh6.googleusercontent.com/-oDzPSHq2ak8/UXCmygZ3JDI/AAAAAAAAC0U/ofzLEEBzwyY/s1600/igguestbook_issue03.jpg>
<https://lh6.googleusercontent.com/-a3tIKUzZFts/UXCm4PqlreI/AAAAAAAAC0c/3EmgX3XZLF4/s1600/igguestbook_issue04.jpg>
to implement "memcache" I use fist "key-only" thecnic, because according to
the manual has some advantages and because my uestbook is a grid (created
with table tag)
A *keys-only query* returns just the keys of the result entities instead of
the entities themselves, at lower latency and cost than retrieving entire
entities:
Query q = pm.newQuery("select id from " + Person.class.getName());
List<String> ids = (List<String>) q.execute();
of course, then with each "key", it was worked on memcache service
but, now I see that seems any query operation on datastore consumes
"Datastore Read Operation", even key-only operations.. so then, is there
some best technic to work with memcache? is it possible to do query on
memcache with GAE-Java?
can anybody tell me something about this ?
Note : I've not corrected yet recording of "empty ads" to keep the spam
attack and use it to improve my techniques GAE-Java development, and of
course, we will continue our testings
best to all
@Mlaynes
--
You received this message because you are subscribed to the Google Groups
"Google App Engine" group.
To unsubscribe from this group and stop receiving emails from it, send an email
to google-appengine+unsubscr...@googlegroups.com.
To post to this group, send email to google-appengine@googlegroups.com.
Visit this group at http://groups.google.com/group/google-appengine?hl=en.
For more options, visit https://groups.google.com/groups/opt_out.
