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Cloned from launchpad blueprint https://blueprints.launchpad.net/oslo.db/+spec/enable-mysql-connector. Description: Current MySQL client library we use (MySQLdb) plays bad with eventlet and may result in db deadlocks [1]. It also blocks execution of other green threads while we're deep in the library code [2]. To avoid those issues, we need to switch to a pure python library with better eventlet support. MySQL Connector is an official mysql python client library and has the needed qualities. [1]: https://wiki.openstack.org/wiki/OpenStack_and_SQLAlchemy#MySQLdb_.2B_eventlet_.3D_sad [2]: http://docs.openstack.org/developer/nova/devref/threading.html Specification URL (additional information): http://git.openstack.org/cgit/openstack/oslo-specs/plain/specs/juno/enable-mysql-connector.rst
The work to support mysql-connector is obsoleted in u/s since the plan is to go forward with pymysql. Closing the bug as not relevant.