Mike Pumphrey ha scritto:
> Hi Roger.
> 
>> Would there be any way to make sure JAI was installed? And maybe
>> some instructions on how to get both the Java SDK( like which one,
>> the Sun site is confusing.) and JAI.
> 
> Can you elaborate on this?  I don't think you need to download JAI to
> run GeoServer, right?  (I'm no expert on this sort of thing.)

No, you don't, the pure java version of JAI and JAI Image I/O are
included in the GeoServer install (whether it's installer, bin or
war). But no native JAI and native JAI Image I/O, which are needed
to get good WMS/coverage performance.

Native JAI is kind of a bitch, as you're supposed to install it
inside the JDK, so in a place where it influences every other
application. I know there are some other apps (ESRI I believe)
that stick an older JAI into the JDK, from that point onwards
GeoServer stops working due to the version mismatch (the version
installed in the JDK trumps the one in the application classpath).

Nevertheless, just for Windows, just for the installer, we could
also place JAI native elements in the package, and make sure
they are visible to the Java dll loader. I believe, without being
sure, that all it's needed is placing the natives into a directory
that's pointed both by PATH and LD_LIBRARY_PATH env variables.

This approach could work for the windows installer and for the
.bin package, thought the .bin is platform independent, so
we'd have to include the native versions for multiple platforms...
nah, not worth the extra effort imho.

Cheers
Andrea

-- 
Andrea Aime
OpenGeo - http://opengeo.org
Expert service straight from the developers.

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