Hello All,
I've been struggling for a month now to fix this issue and needed your help.
*Apache Lounge(2.4)* + *mod_wsgi(4.6.6)* + *python 3.6.5* configuration is
working pretty nice on my *windows* machine. Thanks to '*Graham Dumpleton*
blogs/posts' for that.
I'm facing one strange issue which is related to *rpy2* package.
Just to give you the context that till now what I have done are as follows:
*1.* After setting up all the required environment I ran command ->
*mod_wsgi-express
module-config*
which gives the following scripts:
LoadFile "c:/worksetup/anaconda3/python36.dll"
LoadModule wsgi_module
"c:/worksetup/anaconda3/lib/site-packages/mod_wsgi/server/mod_wsgi.cp36-win_amd64.pyd"
WSGIPythonHome "c:/worksetup/anaconda3"
Added above scripts as it is in *httpd.conf *file without any changes as
suggested by *Graham Dumpleton *himself.
*2.* After that I've created a virtual host to run my wsgi application on '
*localhost:58188/wsgi*'
httpd-vhosts.conf :
<VirtualHost *:58188>
ServerName localhost
LogLevel info
#WSGIProcessGroup test_optimization_group
#WSGIDaemonProcess test_optimization_group user=apache group=apache
processes=1 threads=5 request-timeout=200
# Might stop multithreading
WSGIApplicationGroup %{GLOBAL}
WSGIScriptAlias */wsgi*
"C:/Users/mysuser/PycharmProjects/test_optimization*/test.wsgi*"
DocumentRoot "C:/Users/myuser/PycharmProjects/test_optimization"
</VirtualHost>
*3.* It is working as expected. Everything is fine till now.
*4.* Now the problem comes here when I add these two below imports from rp2
package:
* import rpy2.robjects as robjects*
* from rpy2.robjects import panda2sri*
The moment I add these above imports in my *test.wsgi* script *Apache*
server stops responding rather it hangs without any error.
However the same piece of code (the two rpy2 package imports) is working as
expected in terminal.
*I'm clueless at this point to how to fix this. I needed help on this ??*
*5. *However I did some googling and found this url* : *
https://bitbucket.org/rpy2/rpy2/issues/136/robjectsr-function-hangs-with-mod_wsgi
which is pretty close to what I have been looking for, on windows
machine:
In here the last three comments where *Laurent Gautier *is saying that 'R
cannot do multithreading and using web servers on the Python side that use
are not going to work well'
To try this fix, I tried adding *WSGIProcessGroup & WSGIDaemonProcess *to
bring down the processes to 1 and etc.
WSGIProcessGroup test_optimization_group
WSGIDaemonProcess test_optimization_group user=apache group=apache
processes=1 threads=5 request-timeout=200
But irony of the situation is *WSGIDaemonProcess *is not supported on
windows.
As given here in this link :
https://modwsgi.readthedocs.io/en/develop/configuration-directives/WSGIDaemonProcess.html
Note that the WSGIDaemonProcess directive and corresponding features
are not available on Windows.(from the official website)
*6.* I'm not sure whether fixing point 5 (above mentioned) would fix my
issue or is there any fix is required for this.
Please let me know if I have missed anything. Any help on this is most
welcome.
Thanks for your help in advance.
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