Developers of Sympa

[David Verdin <address@concealed>]

Hi Adam,

Sympa doesn't create a dedicated process to send digests. The main 
sympa.pl process creates the digests when needed.
I don't get the reason why it could be hanging , but that sure explains 
why all other Sympa activity is stopped : if the main sympa loop is 
stucked in preparing a digest, it can't do anything else.
As for debugging, maybe the content of spool/tmp/*.stderr files could 
help you understand what Sympa was doing when it hung.

Hope this helps.

David

Adam Bernstein a écrit :
> Sympa folks --
>
> I need a quick bit of help understanding something, to try to solve a 
> bug we've been dealing with for > 2 years that must be somehow related 
> to modifications I've made, because apparently no one else sees this 
> bug.  The problem is that, occasionally and without any apparent 
> pattern, the sympa.pl process that Sympa spawns to send a digest gets 
> hung after sending and fails to exit.  It remains running, and 
> eventually halts all Sympa activity until we manually kill and restart 
> Sympa.  I've done everything I can think of to debug where the problem 
> occurs, and that "everything" includes a lot, with no luck.
>
> So I'm hoping you can help me understand one critical part of it: 
> Where in the code does Sympa spawn this extra process for sending a 
> digest, and where in the code is it supposed to exit when it's done?  
> I can't find anything that looks like it would do it, which may be 
> partly because I know nothing about spawning one process from inside 
> another.  Any help would be *greatly* appreciated.
>
> Thanks!
>      adam

--
David Verdin
Comité réseau des universités