[Zope] Problem with running same script at a time

Dieter Maurer dieter at handshake.de
Thu Sep 21 13:45:44 EDT 2006


Pletli Antal wrote at 2006-9-21 09:12 +0200:
> ...
>I use the same product. 
>This problem is one of the others...

I had to fix a problem in "psycopg":

   During "connect", Python's Global Interpreter Lock (GIL)
   was not released (freezing Zope during connect).

   Usually, this is not a problem as "connect" is quite a fast
   operation.

   We noticed it only when the server for the postgres installation
   was down (then "connect" became a several minute operation
   until the TCP timeout happened).

However, it is unlikely, that this is your problem.

>The behaviour is the same when i
>use long socket communication (as a tcp client), etc.

This, too, should not happen -- and I never observed it (but a colleague
reported something like this but never showed it to me -- and I did
not believe him; or more precisly, I tested his alledgedly observed
behaviour and could not reproduce it...)

>In these cases the
>folder wich contains the scripts be unaccessible.

Unbelievable -- unless your folder access triggers
the long socket communication. In this case, it would
not be the old socket communication that "blocks" but the new one.

Of course, your folder access should not trigger anything else...



-- 
Dieter


More information about the Zope mailing list