Our deployment automation teams have been addressing the critical issues arised for HA A/A Keystone switched to the mod_wsgi and related backends' failure modes. We ran numerous rally tests against different configuration layouts for Apache2 MPM worker versus Keystone and HAProxy backend config versus deprecated eventlet case. Raw results [0] - no pretty view, sorry.
We made a conclusion based on the tests results [1] and there are couple bug fixes on review [2], [3]. Another related bug fix was merged for the apache 2 control plane [4]. This reduces an amount of undesired main Apache process restarts at deploy stage and provides better availability for the keystone HAProxy backends. As a result, the situation looks stable now and there are no issues left for the Keystone under mod_wsgi. Thank you all who participated for a hard work done. [0] https://goo.gl/Hi25QG [1] https://review.openstack.org/212439 [2] https://review.openstack.org/209589 [3] https://review.openstack.org/209924 -- Best regards, Bogdan Dobrelya, Irc #bogdando __________________________________________________________________________ OpenStack Development Mailing List (not for usage questions) Unsubscribe: [email protected]?subject:unsubscribe http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev
