Due to a missing `on_delete: :cascade`, users would hit the error that
looked like:
```
PG::ForeignKeyViolation: ERROR: update or delete on table "protected_tags"
violates foreign key constraint "fk_rails_f7dfda8c51" on table
"protected_tag_create_access_levels" DETAIL: Key (id)=(1385) is still
referenced from table "protected_tag_create_access_levels". : DELETE FROM
"protected_tags" WHERE "protected_tags"."id" = 1385
```
Closes#36013
* master: (1000 commits)
Fix username autocomplete group name with no avatar alignment
Fix 'Projected tags' typo in protected_tags_spec.rb
Many Repo Fixes
Repo Editor Fixes
Docs: New index for permissions
link article from CI index
link tech articles from the landing page
new articles come first
fix relative link
fix date format
Fixed changed files dropdown not being shown
Update publication date
Remove deprecated field from workhorse API responses
Fix API responses when dealing with txt files
Make sure MySQL would not use CURRENT_TIMESTAMP
Add two more project templates
Allow usage of any_projects? with an Array
Copyedit Artifactory and GitLab article
Rename Artifactory and GitLab article file
Display GPG status loading spinner only when Ajax request is made
...
* upstream/master: (47 commits)
Update CHANGELOG.md for 9.4.5
Update charlock_holmes
add a changelog entry
switch to multi-line before block
restructure the #new_key notification spec
don't send devise notifications to the ghost user
reset_delivered_emails before testing #new_key
skip the :read_project check for new_project_member
move the member spec to be with the other ones
add a spec for new_group_member
add a spec for never emailing the ghost user
rubocop fix
a membership with no user is always notifiable
check notifiability for more emails
add Member#notifiable?(type, opts)
make NotificationRecipient a little more customizable
Add notes about database performance for MySQL
fix confidential border issue as well as confidential styles leaking on new MR
Migrate force push check to Gitaly
Add option to disable project export on instance
...
Caching of BroadcastMessage instances has been changed so a cache stays
valid as long as the default cache expiration time permits, instead of
the cache being expired after 1 minute. When modifying broadcast
messages the cache is flushed automatically.
To remove the need for performing sequence scans on the
"broadcast_messages" table we also add an index on (starts_at, ends_at,
id), permitting PostgreSQL to use an index scan to get all necessary
data.
Finally this commit adds a few NOT NULL constraints to the table to
match the Rails validations.
Fixesgitlab-org/gitlab-ce#31706
This changes various controllers to use the new EventCollection class
for retrieving events. This class uses a JOIN LATERAL query on
PostgreSQL to retrieve queries in a more efficient way, while falling
back to a simpler / less efficient query for MySQL.
The EventCollection class also includes a limit on the number of events
to display to prevent malicious users from cycling through all events,
as doing so could put a lot of pressure on the database.
JOIN LATERAL is only supported on PostgreSQL starting with version 9.3.0
and as such this optimisation is only used when using PostgreSQL 9.3 or
newer.
This commit migrates events data in such a way that push events are
stored much more efficiently. This is done by creating a shadow table
called "events_for_migration", and a table called "push_event_payloads"
which is used for storing push data of push events. The background
migration in this commit will copy events from the "events" table into
the "events_for_migration" table, push events in will also have a row
created in "push_event_payloads".
This approach allows us to reclaim space in the next release by simply
swapping the "events" and "events_for_migration" tables, then dropping
the old events (now "events_for_migration") table.
The new table structure is also optimised for storage space, and does
not include the unused "title" column nor the "data" column (since this
data is moved to "push_event_payloads").
== Newly Created Events
Newly created events are inserted into both "events" and
"events_for_migration", both using the exact same primary key value. The
table "push_event_payloads" in turn has a foreign key to the _shadow_
table. This removes the need for recreating and validating the foreign
key after swapping the tables. Since the shadow table also has a foreign
key to "projects.id" we also don't have to worry about orphaned rows.
This approach however does require some additional storage as we're
duplicating a portion of the events data for at least 1 release. The
exact amount is hard to estimate, but for GitLab.com this is expected to
be between 10 and 20 GB at most. The background migration in this commit
deliberately does _not_ update the "events" table as doing so would put
a lot of pressure on PostgreSQL's auto vacuuming system.
== Supporting Both Old And New Events
Application code has also been adjusted to support push events using
both the old and new data formats. This is done by creating a PushEvent
class which extends the regular Event class. Using Rails' Single Table
Inheritance system we can ensure the right class is used for the right
data, which in this case is based on the value of `events.action`. To
support displaying old and new data at the same time the PushEvent class
re-defines a few methods of the Event class, falling back to their
original implementations for push events in the old format.
Once all existing events have been migrated the various push event
related methods can be removed from the Event model, and the calls to
`super` can be removed from the methods in the PushEvent model.
The UI and event atom feed have also been slightly changed to better
handle this new setup, fortunately only a few changes were necessary to
make this work.
== API Changes
The API only displays push data of events in the new format. Supporting
both formats in the API is a bit more difficult compared to the UI.
Since the old push data was not really well documented (apart from one
example that used an incorrect "action" nmae) I decided that supporting
both was not worth the effort, especially since events will be migrated
in a few days _and_ new events are created in the correct format.
This caches the result of Appearance.first in a similar fashion to how
ApplicationSetting instances are cached. We also add some NOT NULL
constraints to the table and correct the timestamp types.
Fixesgitlab-org/gitlab-ce#36066, fixesgitlab-org/gitlab-ce#31698
By adding various composite indexes we can reduce the time spent
retrieving issue lists. Because of the way these indexes are built
column wise we can also remove some standalone indexes, keeping the
total number of indexes in check.
Previously, we stored these as serialised fields - `st_{commits,diffs}` - on the
`merge_request_diffs` table. These now have their own tables -
`merge_request_diff_{commits,diffs}` - with a column for each attribute of the
serialised data.
Add a background migration to go through the existing MR diffs and migrate them
to the new format. Ignore any contents that cannot be displayed. Assuming that
we have 5 million rows to migrate, and each batch of 2,500 rows can be
completed in 5 minutes, this will take about 7 days to migrate everything.
This changes the migration ProjectForeignKeysWithCascadingDeletes so
that it does not add already existing foreign keys and indexes, making
it easier to re-run the migration.
* commit '9a3b283402b8cc1c86802c526f19a459ce09c2e3': (270 commits)
Add a note about EFS and GitLab log files
Projects logo are not centered vertically on projects page
Fix spec/features/projects/branches_spec
Fixup POST /v3/:id/hooks and PUT /v3/:id/hooks/:hook_id
Fix a spec that was assuming to be on the wrong page
Add copy about search terms to ux guide
Update documentation of user creation by replacing the 'confirm' param with 'skip_confirmation'
Fix replying to commit comments on MRs from forks
Fix 500 error when rendering avatar for deleted project creator
Load and process at most 100 commits when pushing into default branch
Ensure Gitlab::Application.routes.default_url_options are set correctly in Capybara + :js specs
Add log messages to clarify log messages about API CSRF token verification failure
Update gitlab_flow.md, Teatro seems to be completely dead, see also https://forum.gitlab.com/t/gitlab-flow-documentation-teatro/7774
Fix diff commenting results just after changing view
Update CHANGELOG.md for 9.4.2
none is not a CSS Value for sizes ;-)
Merge issuable "reopened" state into "opened"
Make access level more compatible with EE
Add link to JIRA article in docs
Expand pipeline_trigger_service_spec by godfat request
...
Having two states that essentially mean the same thing is very much like
having a boolean "true" and boolean "mostly-true": it's rather silly.
This commit merges the "reopened" state into the "opened" state while
taking care of system notes still showing messages along the lines of
"Alice reopened this issue".
A big benefit from having only two states (opened and closed) is that
indexing and querying becomes simpler and more performant. For example,
to get all the opened queries we no longer have to query both states:
SELECT *
FROM issues
WHERE project_id = 2
AND state IN ('opened', 'reopened');
Instead we can query a single state directly, which can be much faster:
SELECT *
FROM issues
WHERE project_id = 2
AND state = 'opened';
Further, only having two states makes indexing easier as we will only
ever filter (and thus scan an index) using a single value. Partial
indexes could help but aren't supported on MySQL, complicating the
development process and not being helpful for MySQL.