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>
* 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 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 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
* 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
* 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
* Replace all usages of txn.Stmt with sqlutil.TxStmt
Signed-off-by: Sam Day <me@samcday.com>
* Fix sign off link in PR template.
Signed-off-by: Sam Day <me@samcday.com>
Co-authored-by: Neil Alexander <neilalexander@users.noreply.github.com>
* Updated TransactionWriters, moved locks in roomserver, various other tweaks
* Fix redaction deadlocks
* Fix lint issue
* Rename SQLiteTransactionWriter to ExclusiveTransactionWriter
* Fix us not sending transactions through in latest events updater
* Use a fork of pq which supports userCurrent on wasm
* Use sqlite3_js driver when running in JS
* Add cmd/dendritejs to pull in sqlite3_js driver for wasm only
* Update to latest go-sqlite-js version
* Replace prometheus with a stub. sigh
* Hard-code a config and don't use opentracing
* Latest go-sqlite3-js version
* Generate a key for now
* Listen for fetch traffic rather than HTTP
* Latest hacks for js
* libp2p support
* More libp2p
* Fork gjson to allow us to enforce auth checks as before
Previously, all events would come down redacted because the hash
checks would fail. They would fail because sjson.DeleteBytes didn't
remove keys not used for hashing. This didn't work because of a build
tag which included a file which no-oped the index returned.
See https://github.com/tidwall/gjson/issues/157
When it's resolved, let's go back to mainline.
* Use gjson@1.6.0 as it fixes https://github.com/tidwall/gjson/issues/157
* Use latest gomatrixserverlib for sig checks
* Fix a bug which could cause exclude_from_sync to not be set
Caused when sending events over federation.
* Use query variadic to make lookups actually work!
* Latest gomatrixserverlib
* Add notes on getting p2p up and running
Partly so I don't forget myself!
* refactor: Move p2p specific stuff to cmd/dendritejs
This is important or else the normal build of dendrite will fail
because the p2p libraries depend on syscall/js which doesn't work
on normal builds.
Also, clean up main.go to read a bit better.
* Update ho-http-js-libp2p to return errors from RoundTrip
* Add an LRU cache around the key DB
We actually need this for P2P because otherwise we can *segfault*
with things like: "runtime: unexpected return pc for runtime.handleEvent"
where the event is a `syscall/js` event, caused by spamming sql.js
caused by "Checking event signatures for 14 events of room state" which
hammers the key DB repeatedly in quick succession.
Using a cache fixes this, though the underlying cause is probably a bug
in the version of Go I'm on (1.13.7)
* breaking: Add Tracing.Enabled to toggle whether we do opentracing
Defaults to false, which is why this is a breaking change. We need
this flag because WASM builds cannot do opentracing.
* Start adding conditional builds for wasm to handle lib/pq
The general idea here is to have the wasm build have a `NewXXXDatabase`
that doesn't import any postgres package and hence we never import
`lib/pq`, which doesn't work under WASM (undefined `userCurrent`).
* Remove lib/pq for wasm for syncapi
* Add conditional building to remaining storage APIs
* Update build script to set env vars correctly for dendritejs
* sqlite bug fixes
* Docs
* Add a no-op main for dendritejs when not building under wasm
* Use the real prometheus, even for WASM
Instead, the dendrite-sw.js must mock out `process.pid` and
`fs.stat` - which must invoke the callback with an error (e.g `EINVAL`)
in order for it to work:
```
global.process = {
pid: 1,
};
global.fs.stat = function(path, cb) {
cb({
code: "EINVAL",
});
}
```
* Linting
* Move current work into single branch
* Initial massaging of clientapi etc (not working yet)
* Interfaces for accounts/devices databases
* Duplicate postgres package for sqlite3 (no changes made to it yet)
* Some keydb, accountdb, devicedb, common partition fixes, some more syncapi tweaking
* Fix accounts DB, device DB
* Update naffka dependency for SQLite
* Naffka SQLite
* Update naffka to latest master
* SQLite support for federationsender
* Mostly not-bad support for SQLite in syncapi (although there are problems where lots of events get classed incorrectly as backward extremities, probably because of IN/ANY clauses that are badly supported)
* Update Dockerfile -> Go 1.13.7, add build-base (as gcc and friends are needed for SQLite)
* Implement GET endpoints for account_data in clientapi
* Nuke filtering for now...
* Revert "Implement GET endpoints for account_data in clientapi"
This reverts commit 4d80dff458.
* Implement GET endpoints for account_data in clientapi (#861)
* Implement GET endpoints for account_data in clientapi
* Fix accountDB parameter
* Remove fmt.Println
* Fix insertAccountData SQLite query
* Fix accountDB storage interfaces
* Add empty push rules into account data on account creation (#862)
* Put SaveAccountData into the right function this time
* Not sure if roomserver is better or worse now
* sqlite work
* Allow empty last sent ID for the first event
* sqlite: room creation works
* Support sending messages
* Nuke fmt.println
* Move QueryVariadic etc into common, other device fixes
* Fix some linter issues
* Fix bugs
* Fix some linting errors
* Fix errcheck lint errors
* Make naffka use postgres as fallback, fix couple of compile errors
* What on earth happened to the /rooms/{roomID}/send/{eventType} routing
Co-authored-by: Neil Alexander <neilalexander@users.noreply.github.com>
