Deploying mod_wsgi: Error loading MySQLdb module

Question

I want to deploy my django app using apache + mod_wsgi again. I seem to be getting this error 500 message Initially, I was told that I need the latest version of MySQLdb. After I had installed, I got this error message.

Error loading MySQLdb module: /tmp/MySQL_python-1.2.3-py2.4-linux-i686.egg-tmp/_mysql.so: failed to map segment from shared object: Permission denied

I am not sure really what the problem is. I believe it might have something to do with this line written in my httpd.conf.

WSGIPythonEggs /tmp

But it is set that that so it can read write & execute.

Are you not allowed to create an eggs cache in If I cannot put that line in my httpd.conf file, I will have this error[Errno 13] Permission denied: '/root/.python-eggs``/tmp?. Before, I could resolve this by having WSGIPythonEggs /tmpin my httpd.conf file. Now there are some problems from failing to map segment from shared object — Shehzad009
– Shehzad009, Commented Jun 7, 2011 at 12:27

Graham Dumpleton · Accepted Answer · 2011-06-08 14:37:55Z

1

SELinux is most likely enabled. This exact issue is documented in mod_wsgi documentation.

http://code.google.com/p/modwsgi/wiki/ApplicationIssues#Secure_Variants_Of_UNIX

answered Jun 8, 2011 at 14:37

Graham Dumpleton

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Community · Accepted Answer · 2017-05-23 12:04:20Z

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Try a different directory than /tmp - according to this question, it has the t permission set, which disallows users deleting files not their own.

And you still need the WSGIPythonEggs directive.

Update: According to Graham Dumpleton's comment, the directive only works in embedded mode, not daemon mode. He gives a link to his wiki on fixing Application Permission issues, which suggests setting the variable in the mod_wsgi script module, not httpd.conf.

edited May 23, 2017 at 12:04

CommunityBot

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answered Jun 7, 2011 at 12:48

John C

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6 Comments

Shehzad009 Over a year ago

I have created a new directory called 'tmp2', I have change permissions to 755 and in my httpd.conf change, I have called WSGIPythonEggs /tmp2. This has not worked (rror[Errno 13] Permission denied: '/root/.python-eggs``/tmp2)

John C Over a year ago

@Shehzad009, try 777 for permissions.

Shehzad009 Over a year ago

@John C: No that failed Can't extract file(s) to egg cache error again.

John C Over a year ago

@Shehzad009, so the directory has full permissions, and it still doesn't work? Weird. I'm not sure why not, but I can say that when I had the same error (using uWSGI/nginx), I created a directory my user /home/foo/eggs, where eggs had full permissions (no t), and the directories above had x permissions so they could be searched. After running uWSGI, there was a new directory in eggs, called MySql...egg-tmp, owned by uWSGI.

John C Over a year ago

@Shehzad009, after adding my update - I noticed that was your question. So his answer didn't work? Is this a new problem, or complications with the original problem?

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