[Product-Developers] Timeout decorator on external service call

[Andreas Jung]

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It's truly not recommendable calling external webservice from
within a worker thread. If all of the (four) worker threads of Zope  run
into a timeout then you are doomed. Your complete system will be blocked
and modifying the socket time out is also a bad thing (at least in pre
Python 2.6 versions where the socket time is a global resource).

- -aj

mcelotti wrote:
> Hi, I use YouTube Data API ( 
> http://code.google.com/apis/youtube/1.0/developers_guide_python.html 
> http://code.google.com/apis/youtube/1.0/developers_guide_python.html
> ) to fetch videos and other youtube informations. Sometimes (not that
> often, but it happened) the python call "freezes" while waiting for
> youtube data, and this is a problem because it "freezes" my page. I
> tried a timeout decorator (
> http://pypi.python.org/pypi/timeout/0.1.2 
> http://pypi.python.org/pypi/timeout/0.1.2 ) but I get this error: 
> "ValueError: signal only works in main thread". A timeout could be
> useful to handle also other python libs (twitter, flickr etc) and
> avoid these blank pages when the external service does not respond. 
> Has somebody faced this problem? Is there a solution? I'm using
> python2.4 and Plone 3.
> 
> Thank you all, Marco C.
> 
> -- View this message in context:
> http://plone.293351.n2.nabble.com/Timeout-decorator-on-external-service-call-tp7063682p7063682.html
>
> 
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> _______________________________________________ Product-Developers
> mailing list Product-Developers at lists.plone.org 
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