Thank you for your answers. You're probably right, i will try on tomorrow.
 I downloaded 7.7..2, and i fragmented the thesaurus in 6 smaller files  i exported from basex. When "using thesaurus at" a small thesaurus (<5 Mo), basex 's cool. When using a larger one (25 Mo), basex fails and a new message appears: [BASX0005] Stack Overflow: Try tail recursion?"
I can't see how being "tail recursive" on a thesaurus. Query was 'xxxx' contains text 'vvvv' using thesaurus at 'bbb'.
Sorry for the problem, and thank you for being so reactive (could i say "responsive" :-))
x



2013/12/25 Liam R E Quin <liam@w3.org>
On Tue, 2013-12-24 at 21:52 +0200, Xavier-Laurent SALVADOR wrote:
> Hi,
> waiting for Christmas, i was playing with Basex.
> I had no problem for using a short Thesaurus i built a few days ago.
> But when i tried to use the extended one (26Mo), i get this error message.

I see Christian has already replied, but note too that you might need to
give BaseX (or the JVM, rather) more memory.

Liam

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Liam Quin - XML Activity Lead, W3C, http://www.w3.org/People/Quin/
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