[AIRFLOW-971] Remove mysql as a dependency when not explicitly required

• Type: Bug
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: 1.7.1, 1.8.0
• Component/s: core, dependencies
• Labels: build-failure dependencies mysql
• Environment: RHEL 6; Python 2.7
• Assignee: Unassigned
• Reporter: Ruslan Dautkhanov
• Created: 11/Mar/17 20:45
• Updated: 03/Sep/18 13:23

Description

When trying to install Airflow using

pip install "airflow[devel_hadoop]"

pip also tries to install mysql as a dependency.

• First of all we don't need any mysql dependency
• Also `pip mysql` to build requires a local mysql installation and it may have its own issues like for example discussed in http://stackoverflow.com/questions/5178292/pip-install-mysql-python-fails-with-environmenterror-mysql-config-not-found/

Please remove mysql as a dependency when not explicitly requested through airflow[mysql].

It seems devel_hadoop requires mysql for some reason. It would be awesome to remove this dependency.