XSLT & hello
mdounin at mdounin.ru
Tue Apr 8 16:38:31 MSD 2008
On Tue, Apr 08, 2008 at 01:31:34PM +0200, Manlio Perillo wrote:
> Maxim Dounin ha scritto:
>> I'm planning to implement nginx XSLT module for a while, and studied the
>> problem in detail.
>> The main problem with XSLT is that in general you can't transform XML
>> document unless it's fully parsed, and thus nginx will be forced to buffer
>> entire backend answer before transforming. This will have obvious memory
> No problem with Nginx, it can buffer on a temp file (and you can force it
> to *always* buffer to a temp file), so you can just run the XSLT processor
> as a separate process and send the resulting file to the client (perhaps
> using sendfile).
This will have obvious disk, processor and memory implications,
and will throw away any benefits from pre-parsing of xslt files.
Any xslt processor needs xml tree in memory to do transformation,
and moving the task to a separate process doesn't make things
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