This PR changes a few things:
- It pulls out the creation of several NIDs from the `StoreEvent`
function to make the functions more reusable
- Uses more caching when using those NIDs to avoid DB round trips
Should fix the following issues or make a lot less worse when using
Postgres:
The main issue behind #2911: The client gives up after a certain time,
causing a cascade of context errors, because the response couldn't be
built up fast enough. This mostly happens on accounts with many rooms,
due to the inefficient way we're getting recent events and current state
For #2777: The queries for getting the membership events for history
visibility were being executed for each room (I think 185?), resulting
in a whooping 2k queries for membership events. (Getting the
statesnapshot -> block nids -> actual wanted membership event)
Both should now be better by:
- Using a LATERAL join to get all recent events for all joined rooms in
one go (TODO: maybe do the same for room summary and current state etc)
- If we're lazy loading on initial syncs, we're now not getting the
whole current state, just to drop the majority of it because we're lazy
loading members - we add a filter to exclude membership events on the
first call to `CurrentState`.
- Using an optimized query to get the membership events needed to
calculate history visibility
---------
Co-authored-by: kegsay <kegan@matrix.org>
This adds a new admin endpoint `/_dendrite/admin/purgeRoom/{roomID}`. It
completely erases all database entries for a given room ID.
The roomserver will start by clearing all data for that room and then
will generate an output event to notify downstream components (i.e. the
sync API and federation API) to do the same.
It does not currently clear media and it is currently not implemented
for SQLite since it relies on SQL array operations right now.
Co-authored-by: Neil Alexander <neilalexander@users.noreply.github.com>
Co-authored-by: Till Faelligen <2353100+S7evinK@users.noreply.github.com>
The stale device lists table might contain entries for users we don't
share a room with anymore. This now asks the roomserver about left users
and removes those entries from the table.
Co-authored-by: Neil Alexander <neilalexander@users.noreply.github.com>
This optimizes history visibility checks by (mostly) avoiding database
hits.
Possibly solves https://github.com/matrix-org/dendrite/issues/2777
Co-authored-by: Neil Alexander <neilalexander@users.noreply.github.com>
Adds `PUT
/_matrix/client/v3/directory/list/appservice/{networkId}/{roomId}` and
`DELTE
/_matrix/client/v3/directory/list/appservice/{networkId}/{roomId}`
support, as well as the ability to filter `/publicRooms` on networkID
and including all networks.
This should avoid unnecessary logging on startup if the migration (were
we need `InsertMigration`) was already executed.
This now checks for "unique constraint errors" for SQLite and Postgres
and fails the startup process if the migration couldn't be manually
inserted for some other reason.
This changes the detection of already executed migrations for the
roomserver state block and keychange refactor. It now uses schema tables
provided by the database engine to check if the column was already
removed. We now also store the migration in the migrations table.
This should stop e.g. Postgres from logging errors like `ERROR: column
"event_nid" does not exist at character 8`.
* Reprocess outliers that were previously rejected
* Might as well do all events this way
* More useful errors
* Fix queries
* Tweak condition
* Don't wrap errors
* Report more useful error
* Flatten error on `r.Queryer.QueryStateAfterEvents`
* Some more debug logging
* Flatten error in `QueryRestrictedJoinAllowed`
* Revert "Flatten error in `QueryRestrictedJoinAllowed`"
This reverts commit 1238b4184c.
* Tweak `QueryStateAfterEvents`
* Handle MissingStateError too
* Scope to room
* Clean up
* Fix the error
* Only apply rejection check to outliers
* Try optimising checking if server is allowed to see event
* Fix error
* Handle case where snapshot NID is 0
* Fix query
* Update SQL
* Clean up `CheckServerAllowedToSeeEvent`
* Not supported on SQLite
* Maybe placate the unit tests
* Review comments
* Add new db migration
* Update migrations
Remove goose
* Add possibility to test direct upgrades
* Try to fix WASM test
* Add checks for specific migrations
* Remove AddMigration
Use WithTransaction
Add Dendrite version to table
* Fix linter issues
* Update tests
* Update comments, outdent if
* Namespace migrations
* Add direct upgrade tests, skipping over one version
* Split migrations
* Update go version in CI
* Fix copy&paste mistake
* Use contexts in migrations
Co-authored-by: kegsay <kegan@matrix.org>
Co-authored-by: Neil Alexander <neilalexander@users.noreply.github.com>
* Membership updater refactoring
* Pass in membership state
* Use membership check rather than referring to state directly
* Delete irrelevant membership states
* We don't need the leave event after all
* Tweaks
* Put a log entry in that I might stand a chance of finding
* Be less panicky
* Tweak invite handling
* Don't freak if we can't find the event NID
* Use event NID from `types.Event`
* Clean up
* Better invite handling
* Placate the almighty linter
* Blacklist a Sytest which is otherwise fine under Complement for reasons I don't understand
* Fix the sytest after all (thanks @S7evinK for the spot)
* Add Room Aliases tests
* Add Rooms table test
* Move StateKeyTuplerSorter to the types package
* Add StateBlock tests
Some optimizations
* Add State Snapshot tests
Some optimization
* Return []int64 and convert to pq.Int64Array for postgres
* Move []types.EventNID back to rows.Next()
* Update tests, rename SelectRoomIDs
* Add EventJSONTable tests
* Add eventJSON tests
* Add EventStateKeysTable tests
* Add EventTypesTable tests
* Add Events Table tests
Move variable declaration outside loops
Switch to testify/assert for tests
* Move variable declaration outside loop
* Remove random data
* Fix issue where the EventReferenceSHA256 is not set
* Add more tests
* Revert "Fix issue where the EventReferenceSHA256 is not set"
This reverts commit 8ae34c4e5f.
* Update GMSL
* Add tests for duplicate entries
* Test what happens if we select non-existing NIDs
* Add test for non-existing eventType
* Really update GMSL
* Assign room NIDs and state key NIDs outside of database transactions
* In roomserver storage package too
* Don't take a `txn` parameter, clean up SQLite
* Only add events to `add_state_events` that haven't already been sent to the roomserver output before
* Filter on event NIDs instead, hopefully bring joy to SQLite
* UnsentFilter, review comments
* Add transaction to all database tables in roomserver, rename latest events updater to room updater, use room updater for all RS input
* Better transaction management
* Tweak order
* Handle cases where the room does not exist
* Other fixes
* More tweaks
* Fill some gaps
* Fill in the gaps
* good lord it gets worse
* Don't roll back transactions when events rejected
* Pass through errors properly
* Fix bugs
* Fix incorrect error check
* Don't panic on nil txns
* Tweaks
* Hopefully fix panics for good in SQLite this time
* Fix rollback
* Minor bug fixes with latest event updater
* Some review comments
* Revert "Some review comments"
This reverts commit 0caf8cf53e.
* Fix a couple of bugs
* Clearer commit and rollback results
* Remove unnecessary prepares
* Put federation client functions into their own file
* Look for missing auth events in RS input
* Remove retrieveMissingAuthEvents from federation API
* Logging
* Sorta transplanted the code over
* Use event origin failing all else
* Don't get stuck on mutexes:
* Add verifier
* Don't mark state events with zero snapshot NID as not existing
* Check missing state if not an outlier before storing the event
* Reject instead of soft-fail, don't copy roominfo so much
* Use synchronous contexts, limit time to fetch missing events
* Clean up some commented out bits
* Simplify `/send` endpoint significantly
* Submit async
* Report errors on sending to RS input
* Set max payload in NATS to 16MB
* Tweak metrics
* Add `workerForRoom` for tidiness
* Try skipping unmarshalling errors for RespMissingEvents
* Track missing prev events separately to avoid calculating state when not possible
* Tweak logic around checking missing state
* Care about state when checking missing prev events
* Don't check missing state for create events
* Try that again
* Handle create events better
* Send create room events as new
* Use given event kind when sending auth/state events
* Revert "Use given event kind when sending auth/state events"
This reverts commit 089d64d271.
* Only search for missing prev events or state for new events
* Tweaks
* We only have missing prev if we don't supply state
* Room version tweaks
* Allow async inputs again
* Apply backpressure to consumers/synchronous requests to hopefully stop things being overwhelmed
* Set timeouts on roomserver input tasks (need to decide what timeout makes sense)
* Use work queue policy, deliver all on restart
* Reduce chance of duplicates being sent by NATS
* Limit the number of servers we attempt to reduce backpressure
* Some review comment fixes
* Tidy up a couple things
* Don't limit servers, randomise order using map
* Some context refactoring
* Update gmsl
* Don't resend create events
* Set stateIDs length correctly or else the roomserver thinks there are missing events when there aren't
* Exclude our own servername
* Try backing off servers
* Make excluding self behaviour optional
* Exclude self from g_m_e
* Update sytest-whitelist
* Update consumers for the roomserver output stream
* Remember to send outliers for state returned from /gme
* Make full HTTP tests less upsetti
* Remove 'If a device list update goes missing, the server resyncs on the next one' from the sytest blacklist
* Remove debugging test
* Fix blacklist again, remove unnecessary duplicate context
* Clearer contexts, don't use background in case there's something happening there
* Don't queue up events more than once in memory
* Correctly identify create events when checking for state
* Fill in gaps again in /gme code
* Remove `AuthEventIDs` from `InputRoomEvent`
* Remove stray field
Co-authored-by: Kegan Dougal <kegan@matrix.org>
* Do not store 'null' in the database for empty JSON arrays
This can cause issues, though it should be noted that the majority
of the time this will marshal/unmarshal just fine, see
https://play.golang.org/p/Doe2NZUgv7Q
* bugfix: sqlite migration should handle create events as having no 'before' snapshot
The state snapshot for any given event in the roomserver represents the state _before_
the event. For the create event, this is nothing, so the state snapshot nid should be 0.
In some cases this wasn't happening, resulting in a nice mix of possible options including:
- A state snapshot without any state blocks `[]` or `null`.
- A state snapshot with a single state block with a single event, the create event, causing
a circular loop. This is incorrect as it represents the state before the event, not after.
* Add state key check
* Add more optimised code path for checking if we're in a room
* Fix database queries
* Fix federation API test
* Fix logging
* Review comments
* Make separate API call for room membership
* db migration: fix#1844 and add additional assertions
- Migration scripts will now check to see if there are any unconverted
snapshot IDs and fail the migration if there are any. This should
prevent people from getting a corrupt database in the event the root
cause is still unknown.
- Add an ORDER BY clause when doing batch queries in the postgres
migration. LIMIT and OFFSET without ORDER BY are undefined and must
not be relied upon to produce a deterministic ordering (e.g row order).
See https://www.postgresql.org/docs/current/queries-limit.html
* Linting
Co-authored-by: Neil Alexander <neilalexander@users.noreply.github.com>
* Hash-deduplicated state storage (and migrations) for PostgreSQL and SQLite
* Refactor droomserver database setup for migrations
* Fix conflict statements
* Update migration names
* Set a boundary for old to new block/snapshot IDs so we don't rewrite them more than once accidentally
* Create sequence if not exists
* Fix boundary queries
* Fix boundary queries
* Use Query
* Break out queries a bit
* More sequence tweaks
* Query parameters are not playing the game
* Injection escaping may not work for CREATE SEQUENCE after all
* Fix snapshot sequence name
* Use boundaried IDs in SQLite too
* Use IFNULL for SQLite
* Use COALESCE in PostgreSQL
* Review comments @Kegsay
* Hit the database far less to find room NIDs for event NIDs
* Close the rows
* Fix SQLite selectRoomNIDsForEventNIDsSQL
* Give same treatment to room version lookups
