Created attachment 331775 [details] Backport of the continue fix to 2.3 Description of problem: When using curl/libcurl/pycurl (or Opera) with an application running under mod_wsgi and the POST parameters are large enough (1024 bytes for curl), the client will use an "Expect: continue-100" header to tell the server to acknowledge the request and request the rest of the information before proceeding. Unfortunately, mod_wsgi-2.0-mod_wsgi-2.3 have a bug that causes problems with that header. The application server sitting behind mod_wsgi never gets the header and so tries to process the request immediately instead of asking for the rest of the data. This leads to form variables never being seen by the server. Version-Release number of selected component (if applicable): mod_wsgi-2.1-2.el5 mod_wsgi-2.3-1.fc10.i386 How reproducible: Everytime Steps to Reproduce: 1. Start a server under mod_wsgi. For instance bodhi 2. attempt to contact it using pycurl and a large amount of POST data For instance, https://admin.fedoraproject.org/updates/admin/mash with a large number of updates. 3. Actual results: Server will receive the request without any POST data Expected results: Server will receive the request with full POST data. Additional info: This affects both the Fedora and EPEL mod_wsgi. There is a patch in the mod_wsgi-2.x branch upstream that will be out in mod_wsgi-2.4. Details here: http://code.google.com/p/modwsgi/issues/detail?id=121 Attaching a backport of the patch to mod_wsgi-2.3.
Created attachment 331780 [details] Backport of fix to mod_wsgi-2.1 for EL-5 And a backport of the fix to 2.1 for the EPEL branch.
mod_wsgi-2.1 with the EL-5 backport has been running successfully in fedora infrastructure for two weeks.
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