HAProxy vs. Nginx

I was looking at using HAProxy and Nginx for load balancing, and I had some questions: Should I use JUST HAProxy over Nginx for the proxy server? Is there any reason to have HAProxy and Nginx installed on the same proxy server? Thanks

bash: mkvirtualenv: command not found

Solution 1: For some reason, virtualenvwrapper.sh installed in /usr/bin/virtualenvwrapper.sh, instead of under /usr/local/bin. The following in my .bash_profile works… My install seems to work fine without sourcing virtualenvwrapper_bashrc Solution 2: Alternatively as mentioned below, you could leverage the chance that virtualenvwrapper.sh is already in your shell’s PATH and just issue a source `which virtualenvwrapper.sh`

Python, how to handle the “ValueError: unsupported pickle protocol: 4” error?

I’m new to Python. I’ve to run this TargetFinder script (“Custom Analyses”). I installed all the required python packages, and copied the code into a script I named main.py, and ran it. I got this error: I’ve no idea about what this pickle protocol means, and also my colleagues know nothing about it. How can … Read more