Re: [Pljava-dev] stack depth limit exceeded - patch possible? - Mailing list pgsql-hackers

From Alexander Wöhrer
Subject Re: [Pljava-dev] stack depth limit exceeded - patch possible?
Date
Msg-id 58782.88.116.137.78.1208177811.squirrel@www.par.univie.ac.at
Whole thread Raw
In response to Re: [Pljava-dev] stack depth limit exceeded - patch possible?  (Kris Jurka <books@ejurka.com>)
Responses Re: [Pljava-dev] stack depth limit exceeded - patch possible?
List pgsql-hackers
Dear Kris,

am I understanding this correctly that pl/java sets it for the main Java
thread, so other threads spawned by this main thread and using postgres
SPI functionality will run into stack_depth_problems?

I have read only access in this application, so maybe my envisioned
patched version (check_stack_depth doing nothing) will work for my proof
of concept tests.

Can you suggest another workaround?

Regards,

Alexander Wöhrer

>
>
> On Sat, 12 Apr 2008, Alexander Wöhrer wrote:
>
>> I'm working on Windows XP SP2 (stack limit 3500 kb) and deployed
>> successfully my application (doing some external Web service calling)
>> inside PostGre 8.3.0.
>>
>> Unfortunatelly, the application needs at least 3 Threads and will run
>> for quite some time.
>>
>> I found this comment
>>
>> http://pgfoundry.org/pipermail/pljava-dev/2005/000491.html
>>
>> by Thomas Hallgren where he mentioned that PostGre only defines
>> one stack and therefor pl/java has no way of telling PostGre
>> about multiple thread stack pointers.
>>
>> My question is now if there is a patched version available of PostGre
>> 8.3.0 having this stack_depth check disabled?
>
> This was fixed in postgresql/pljava shortly after the referenced
> discussion.  As requested, postgresql 8.1+ allows modification of
> stack_base_ptr so pljava can set it as desired.
>
> Kris Jurka




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