See discussion here: https://github.com/overhangio/tutor/pull/984
This is a breaking change that will explicitely set the timeout of
course structure cache entries to 1 week, instead of being unlimited. If
you wish to revert to the former behaviour, you should set
`course_structure_cache["TIMEOUT"] = None`.
The course structure cache keys were previously set with an explicit
timeout of `None` which was overriding the cache default timeout of 2h.
This was OK in environments where the cache is configured with a maximum
memory limit and an automatic key eviction strategy. But in others (such
as Tutor), the course structure cache could grow infinitely.
It was agreed that course structure cache keys should be long-lived but
should respect the default cache structure timeout. Thus, we set here
the TTL to 1 week.
We can also configure Tutor to use a cache eviction policy. But that
means we need to set a `maxmemory` value in Redis. It's not possible to
set a value that will be appropriate for everyone:
- if it's higher than the total memory (e.g: in small instances), server
will crash before the cache is filled.
- if it's too low (e.g: in large instances), the whole platform will abruptly
slow down as many cache entries are suddenly evicted.
That question of whether Tutor should define a cache eviction policy is
still under discussion, but it can be resolved independently of this
change.
Originally, Blockstore was an independent micro-service, accessed via a REST API.
Then, we changed Blockstore so it could be installed as an in-process Django app.
To support both modes, there existed a blockstore_api wrapper library in edx-platform,
with toggles controlling whether the wrapper called out to the micro-service's REST API versus the
Django app's Python API. Now that the micro-service Blockstore implementation is deprecated,
though, this wrapper library and toggles are just unnecessary complexity.
As a first step towards cleanup, we:
* remove several toggles and settings (details below);
* remove the blocokstore_api wrapper methods which called the REST API and
marshalled them back into Python objects; and
* remove all test cases which relied on the Blockstore micro-service (and were skippped in CI).
In the future, we will remove the content libraries indexer,
clean up the remaining bits of blockstore_api, and flatten out all
the Blockstore-related test class hierarchies which are no longer nceessary.
BREAKING CHANGE:
* These Django settings are removed:
* BLOCKSTORE_PUBLIC_URL_ROOT
* BLOCKSTORE_API_URL
* BLOCKSTORE_API_AUTH_TOKEN
* BLOCKSTORE_USE_BLOCKSTORE_APP_API
* The blockstore.use_blockstore_app_api Waffle switch is removed.
* edx-platform will act as it did when the DJango setting BLOCKSTORE_USE_BLOCKSTORE_APP_API
or the Waffle switch blockstore.use_blockstore_app_api were enabled. That is, any running Blockstore
micro-service instance will be ignored, and the Blockstore package which is installed into edx-platform
will be used instead.
Ref: https://github.com/openedx/blockstore/issues/296
* Update location in devstack-experimental to fix issue while re-indexing
* Updated the devstack.py to point to edx.devstack.elasticsearch710 host
* Enabed the ENABLE_COURSEWARE_INDEX and ENABLE_COURSEWARE_SEARCH
Call into the exam service instead of the edx-proctoring plugin on course publish if the course_apps.exams_ida course waffle flag is enabled. This is an early step in moving away from edx-proctoring
edx-platform supports COMPREHENSIVE_THEME_LOCALE_PATHS setting, which
appends paths to the end of LOCALE_PATHS, but there's currently no
way to add additional paths to the start of the list.
https://tasks.opencraft.com/browse/SE-5299
This commits prepares edx-platform's experimental Dockerfile
for optional use in devstack. Presently, the image built by this
Dockerfile isn't used anywhere.
Notable changes:
* Drop the openedx/edx-platform image name in favor of
openedx/lms and openedx/cms.
* Drop the newrelic stages and tags.
* Create openedx/lms-dev and openedx/cms-dev image
variants which use Django devserver, install dev
requirements, and specify devstack Django settings.
* Add config files at (lms,cms)/envs/devstack-experimental.yml,
extracted from the existing edxapp docker image.
* Adds three new scripts, each of which replaces an Ansible
or Paver-supported function with a pure bash + Django
management command implementation.
