We're seeing slow commits on production for courseware_studentmodule
updates. Based on the slow queries during those times, we think it
might be because multiple worker processes are trying to update the
same rows from within long-running transactions (since courseware
is relatively slow).
The risk with this is that since the whole view execution is no
longer wrapped in a big implicit transaction, it's possible that
XBlock state will update and things that key off of that (e.g.
completion progress information or pre-req milestones) will fail
in a way that will leave the database in an unplanned-for state,
though this is already the case for those actions that trigger
asynchronous tasks like grades recalculation.
The query counts for the index view test were adjusted down
because save points count towards the total and we're no longer
setting them at the top level around the view as a whole.
* Converting variable to string before assignment in tests
Django 2 is stricter of string typing, so it will no longer do implicit conversions in some cases.
While the release notes only mention dropping bytestring support in some places, they seem to have also dropped implicit conversion to str for whole host of things.
We are seeing an error in the send_verification_expiry_email job
because one verification model instance had a null expiry_date but
a non-null expery_email_date.
This makes us more robust to that odd data and makes the job more
robust by having it still send other emails out even if one fails.
AA-70
Now in addition to enrollment_start support in ExperimentWaffleFlag,
you can set an enrollment_end date for your experiment. All enrollments
after this date will get the control experience.
We sometimes update preexisting SAML SSO providers to configure them
to automatically create SSO identity verification (IdV) records when a
learner links an account via that provider. Turning that configuration
from off to on does make it such that when learners log back in via
their linked account, a new IdV record will be created for them. But
it's possible we'd want this process to happen more automatically and
seamlessly, for which this management command will be helpful.
Note that this does not help with removing SSO verification records
for a provider for which this configuration has been turned off.
JIRA:EDUCATOR-4947
- ensure logic for displaying reset dealines banner in courseware
is behind the relative dates waffle flag, only shows if the
course is self paced, and handles the situation where no
sequentials exist.
