[Twisted-Python] are there known ssl/threading/socket issues with httplib2/httplib and Twisted ?
Dustin J. Mitchell
dustin at v.igoro.us
Thu Sep 18 06:35:45 MDT 2014
Are you by any chance using the same HTTPConnection instance in both threads?
Dustin
On Wed, Sep 17, 2014 at 9:44 PM, Andrew Bennetts <andrew at bemusement.org> wrote:
> Jonathan Vanasco wrote:
>>
>> Background:
>> I'm using a 3rd party API client, which uses httplib2 in the internals.
>> ( the google-plus api )
>> I'm placing this blocking code within a DeferredList, that runs within a
>> twisted.enterprise.adbapi.ConnectionPool.runInteraction
>>
>> In my initial tests, everything worked fine -- but I was only making a single
>> GET/POST, as I kept the size of the DeferredList to 1 while I worked on the
>> code.
>>
>> As soon as I increased the limit and had 2 GET/POST events firing off at the
>> same time, I started getting a ssl/socket error ( httplib2 > httplib >
>> socket > ssl ).
>
> What's the error?
>
>> It works fine in twisted if I make simultaneous requests otherwise (using
>> twisted or the `requests` package). this seems to be tied to how
>> httplib2/httplib is running within twisted.
>
> There shouldn't be anything special about httplib2/httplib “within twisted”.
> Unless httplib2 is mucking with global socket defaults or something (and I doubt
> it does) I wouldn't expect any interaction between the two at all. It's no
> different to using httplib2 in a thread without Twisted.
>
> -Andrew.
>
>>
>> Has anyone experienced this before? if so, do you know if there is a
>> workaround?
>>
>> The easiest fix, is probably for me to write a new ApiClient tomorrow for the
>> methods I need. I'd just like to avoid that if possible
>> _______________________________________________
>> Twisted-Python mailing list
>> Twisted-Python at twistedmatrix.com
>> http://twistedmatrix.com/cgi-bin/mailman/listinfo/twisted-python
>>
>
> _______________________________________________
> Twisted-Python mailing list
> Twisted-Python at twistedmatrix.com
> http://twistedmatrix.com/cgi-bin/mailman/listinfo/twisted-python
More information about the Twisted-Python
mailing list