Bug 1136653

Summary:	[RFE][oslo]: Enable MySQL Connector driver
Product:	Red Hat OpenStack	Reporter:	RHOS Integration <rhos-integ>
Component:	RFEs	Assignee:	Ihar Hrachyshka <ihrachys>
Status:	CLOSED WONTFIX	QA Contact:	Ihar Hrachyshka <ihrachys>
Severity:	low	Docs Contact:
Priority:	unspecified
Version:	unspecified	CC:	ihrachys, markmc, yeylon
Target Milestone:	---	Keywords:	FutureFeature
Target Release:	---
Hardware:	Unspecified
OS:	Unspecified
URL:	https://blueprints.launchpad.net/oslo.db/+spec/enable-mysql-connector
Whiteboard:	upstream_milestone_none upstream_definition_obsolete upstream_status_started
Fixed In Version:		Doc Type:	Enhancement
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2015-02-09 16:00:03 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description RHOS Integration 2014-09-03 04:12:22 UTC

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

Comment 1 Ihar Hrachyshka 2015-02-09 16:00:03 UTC

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.