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Marco Catunda
catunda at pobox.com
Thu Jan 27 14:32:53 EST 2005
Greats!! Thanks everybody. I resolved the problem in my system. My config was: /usr/local/desenv/python/Python-2.4# rpm -qa | grep expat expat-1.95.5-6 expat-devel-1.95.5-6 /usr/local/desenv/python/Python-2.4# tail Modules/expat/expat.h */ #define XML_MAJOR_VERSION 1 #define XML_MINOR_VERSION 95 #define XML_MICRO_VERSION 8 The expat module used in apache was 1.95.5 version and in python was 1.95.8. I recompiled apache with expat 1.95.8 and everything worked fine. -- Marco Catunda Craig Warren wrote: > Yeah ,I didn't see this problem till we moved to Python2.4. With > Python2.3 the old expat libraries worked. > > Craig > > > Indrek Järve wrote: > >> Didn't Python 2.4 include a newer version of the expat library? >> *checks* >> Indeed, the post is here: >> http://mail.python.org/pipermail/xml-sig/2004-August/010405.html >> The library mismatch could be the problem, as described in the thread >> in the link: >> http://mail.python.org/pipermail/python-list/2004-December/256676.html >> >> Regards, >> Indrek >> >> Mark McClain wrote: >> >>> This is probably has something do to with the library conflicts. Our >>> production servers (mod_python 3.1.x, apache 2.0.x, python 2.3.x) has >>> been using xmlrpclib for over a year without any crashes. >>> >>> Have you compiled your own versions of apache,mod_python, and >>> python? Or are you using the stock redhat versions? >>> >>> Mark >>> >>> On Jan 26, 2005, at 11:47 PM, David Fraser wrote: >>> >>>> Graham Dumpleton wrote: >>>> >>>>> Marco Catunda wrote .. >>>>> >>>>>> I haven't been able to use xmlrpclib with mod_python. >>>>>> When I import xmlrpclib the apache server crash (segmentation fault), >>>>>> the following code will be show it. >>>>>> >>>>>> ===================================== >>>>>> from mod_python import apache >>>>>> import xmlrpclib >>>>>> >>>>>> def handler( req ): >>>>>> req.write("Hello World!") >>>>>> return apache.OK >>>>>> ===================================== >>>>>> >>>>>> My system: >>>>>> RedHat ES 3 >>>>>> Apache 2.0.52 >>>>>> Python 2.4 >>>>>> >>>>>> Is there a way to fix it? >>>>>> >>>>> >>>>> The xmlrpclib module uses a Python XML module which looks like it >>>>> tries >>>>> to use expat. >>>>> >>>>> >>>>>>>> import xmlrpclib >>>>>>>> import sys >>>>>>>> sys.modules.keys() >>>>>>>> >>>>> ['cStringIO', 'copy_reg', 'sre_compile', '_sre', 'site', >>>>> '__builtin__', 'xml.parsers.expat', 'xml._xmlplus', 'xml.parsers', >>>>> 'xml.sys', '__main__', 'operator', 'xml.parsers.pyexpat', 'xml', >>>>> 'posixpath', 'base64', 'binascii', 'pyexpat.errors', >>>>> 'sre_constants', 're', 'os.path', 'stat', 'zipimport', 'string', >>>>> 'warnings', 'UserDict', '_xmlplus', 'sys', 'readline', 'types', >>>>> 'strop', 'sre', 'signal', 'xmlrpclib', 'linecache', 'posix', >>>>> 'pyexpat.model', 'time', 'exceptions', 'sre_parse', 'os'] >>>>> >>>>> It is a frequent problem that the version of the expat shared >>>>> library which >>>>> is used by the Python modules differs to that which Apache or PHP may >>>>> already be using. This difference can result in a server crash. >>>>> >>>>> You should thus try to determine if you have multiple versions of >>>>> expat >>>>> present and whether these different packages are using different >>>>> versions. >>>>> >>>>> On Linux, you might be able to use "ldd" to work this out by >>>>> running it >>>>> on the "httpd" binary, as well as the appropriate .so Python module. >>>>> >>>>> ldd /somepath-to-apache-bin-dir/httpd >>>>> ldd /somepath-to-python-module-dir/lib-dynload/pyexpat.so >>>>> ldd /somepath-to-apache-module-dir/*php*.so >>>>> >>>>> The paths will need to be adjusted obviously. >>>>> >>>>> Please post the results of ldd if you can as am curious to see if this >>>>> does help, I have never suggested trying it before. >>>>> >>>>> Graham >>>>> >>>>> >>>> Since this is a common problem, I wonder if there may be a way to >>>> put checks into the Python modules that use expat to prevent this >>>> happening? >>>> >>>> David >>>> _______________________________________________ >>>> Mod_python mailing list >>>> Mod_python at modpython.org >>>> http://mailman.modpython.org/mailman/listinfo/mod_python >>>> >>> >>> _______________________________________________ >>> Mod_python mailing list >>> Mod_python at modpython.org >>> http://mailman.modpython.org/mailman/listinfo/mod_python >> >> >> >> >> _______________________________________________ >> Mod_python mailing list >> Mod_python at modpython.org >> http://mailman.modpython.org/mailman/listinfo/mod_python > > > > _______________________________________________ > Mod_python mailing list > Mod_python at modpython.org > http://mailman.modpython.org/mailman/listinfo/mod_python > >
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