I believe that the suggested configuration for GWT is:
<static-files>
<include path="**.nocache.*" expiration="1s"/>
<include path="**" expiration="30d"/>
</static-files>
Does that work?
If not, please send me your web.xml and appengine-web.xml (privately if you
want) and I'll determine why this configuration is blowing up to > 100
URLMap entries. There's a combinatorial issue here between static-file
patterns, authentication patterns, and filter patterns that could be causing
trouble.
On Fri, Jan 1, 2010 at 3:16 PM, Nohu <[email protected]> wrote:
> Hello
>
> I am developing some application written in GWT on App Engine. I'm on
> optimalization stage,
> so i want to allow browsers to cache as much of static files as
> possible.
>
> If I don't put any static files in appengine-web.xml directly, App
> Engine threat all files in
> "war" directory as static files (except WEB-INF directory) and when I
> deploy my application
> I have about 450 of them.
>
> I read (http://code.google.com/p/googleappengine/issues/detail?
> id=1662 <http://code.google.com/p/googleappengine/issues/detail?id=1662>)
> that App Engine sets default
> cache expiration time to 10 minutes (which is too short).
>
> So, if I want to set different time I need to define all my static
> files in appengine-web.xml
> (because if I define even one static file, App Engine abandon his
> default behavior, and don't
> look automatically for other static files) and set my expiration time
> for them in "expiration" attribiute.
>
> And then we come to my problem. When I put all my static files in
> appengine-web.xml for example like this:
>
> <static-files>
> <include path="/**.cache.*" expiration="3000d"/>
> <include path="/**.png" expiration="30d"/>
> <include path="/**.gif" expiration="30d"/>
> <include path="/**.jpg" expiration="30d"/>
> <include path="/**.css" expiration="30d"/>
> <include path="/**.html" expiration="30d"/>
> </static-files>
>
> on deploy I have error:
>
> Unable to update app: Error posting to URL:xxx
> 400 Bad Request
> Error when loading application configuration:
> Invalid object:
> Found more than 100 URLMap entries in application configuration
>
>
> See the deployment console for more details
>
> As I understand App Engine maps every of my defined static files to
> URL's, and it exceeds some
> limits (http://code.google.com/p/googleappengine/issues/detail?
> id=1444 <http://code.google.com/p/googleappengine/issues/detail?id=1444>),
> but why was that
> working when I didn't specify static files in appengine-web.xml? App
> Engine choosed even more static
> files then (all from "war" directory).
>
> GWT generates many static files for its own (many js files, that can
> be cached forever),
> and if you use runAsync code splitting, there are even more of them.
> It's essential in GWT to allow
> cache this files, because that's what GWT is! If they are downloaded
> every time when user requests
> page, it doesn't have sense (at least in performance meaning).
>
> I assume that App Engine and GWT combination has strong support from
> Google
> (Eclipse plugin for example makes developing with them so easy), so I
> think that there have to
> be some solution.
>
> Is there any workaround for it? I just want to set cache expiration
> time for my static files.
>
> Marcin
>
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