Keeping track of a lower bound of stream ID where we've deleted everything below makes the queries much faster. Otherwise, every time we scan for rows to delete we'd re-scan across all the rows that have previously deleted (until the next table VACUUM).
* Fix the CI query that did not detect all cases of missing primary keys
* Add more missing REPLICA IDENTITY entries
* Newsfile
Signed-off-by: Olivier Wilkinson (reivilibre) <oliverw@matrix.org>
---------
Signed-off-by: Olivier Wilkinson (reivilibre) <oliverw@matrix.org>
* Add Postgres replica identities to tables that don't have an implicit one
Fixes#16224
* Newsfile
Signed-off-by: Olivier Wilkinson (reivilibre) <oliverw@matrix.org>
* Move the delta to version 83 as we missed the boat for 82
* Add a test that all tables have a REPLICA IDENTITY
* Extend the test to include when indices are deleted
* isort
* black
* Fully qualify `oid` as it is a 'hidden attribute' in Postgres 11
* Update tests/storage/test_database.py
Co-authored-by: Patrick Cloke <clokep@users.noreply.github.com>
* Add missed tables
---------
Signed-off-by: Olivier Wilkinson (reivilibre) <oliverw@matrix.org>
Co-authored-by: Patrick Cloke <clokep@users.noreply.github.com>
If simple_{insert,upsert,update}_many_txn is called without any data
to modify then return instead of executing the query.
This matches the behavior of simple_{select,delete}_many_txn.
Fetch information needed for push rule evaluation in parallel.
Ideally this would use query pipelining, but this is not
available in psycopg2.
Due to the database thread pool this may result in little
to no parallelization.
The event persistence code used to handle multiple rooms
at a time, but was simplified to only ever be called with a
single room at a time (different rooms are now handled in
parallel). The code is still generic to multiple rooms causing
a lot of work that is unnecessary (e.g. unnecessary loops, and
partitioning data by room).
This strips out the ability to handle multiple rooms at once, greatly
simplifying the code.
Just to standardize on the normal helpers, it might also have
a slight perf improvement on PostgreSQL which will now use
`ANY (?)` instead of `IN (?, ?, ...)`.
This is mostly useful for federated rooms where some users
would get stuck in the invite or knock state when the room
was purged from their homeserver.
* Fix bug where a new writer advances their token too quickly
When starting a new writer (for e.g. persisting events), the
`MultiWriterIdGenerator` doesn't have a minimum token for it as there
are no rows matching that new writer in the DB.
This results in the the first stream ID it acquired being announced as
persisted *before* it actually finishes persisting, if another writer
gets and persists a subsequent stream ID. This is due to the logic of
setting the minimum persisted position to the minimum known position of
across all writers, and the new writer starts off not being considered.
* Fix sending out POSITIONs when our token advances without update
Broke in #14820
* For replication HTTP requests, only wait for minimal position
This could happen if the last rows in the account data stream were inserted into `account_data`. After a restart the max account ID would be calculated without looking at the `account_data` table, and so have an old ID.
This splits thinsg into two queries, but most of the time we won't have
new event backwards extremities so this shouldn't actually add an extra
RTT for the majority of cases.
Note this removes the check for events with no prev events, but that was
part of MSC2716 work that has since been removed.
This avoids calling cursor_to_dict and then immediately
unpacking the values in the dict for other users. By not
creating the intermediate dictionary we can avoid allocating
the dictionary and strings for the keys, which should generally
be more performant.
Additionally this improves type hints by avoid Dict[str, Any]
dictionaries coming out of the database layer.
Co-authored-by: David Robertson <davidr@element.io>
Co-authored-by: Patrick Cloke <patrickc@matrix.org>
Co-authored-by: Erik Johnston <erik@matrix.org>
Assert that the return type of callables wrapped in @cached
and @cachedList are cachable (aka immutable).
Refresh tokens were not correctly moved to the rehydrated
device (similar to how the access token is currently handled).
This resulted in invalid refresh tokens after rehydration.
* Fix rare bug that broke looping calls
We can't interact with the reactor from the main thread via looping
call.
Introduced in v1.90.0 / #15791.
* Newsfile
* Properly update retry_last_ts when hitting the maximum retry interval
This was broken in 1.87 when the maximum retry interval got changed from
almost infinite to a week (and made configurable).
fixes#16101
Signed-off-by: Nicolas Werner <nicolas.werner@hotmail.de>
* Add changelog
* Change fix + add test
* Add comment
---------
Signed-off-by: Nicolas Werner <nicolas.werner@hotmail.de>
Co-authored-by: Mathieu Velten <mathieuv@matrix.org>
If we don't have all the auth events in a room then not all state events will have a chain cover index. Even so, we can still use the chain cover index on the events that do have it, rather than bailing and using the slower functions.
This situation should not arise for newly persisted rooms, as we check we have the full auth chain for each event, but can happen for existing rooms.
c.f. #15245
We were seeing serialization errors when taking out multiple read locks.
The transactions were retried, so isn't causing any failures.
Introduced in #15782.
* Add a cache invalidation clean-up task
* Run the cache invalidation stream clean-up on the background worker
* Tune down
* call_later is in millis!
* Newsfile
Signed-off-by: Olivier Wilkinson (reivilibre) <oliverw@matrix.org>
* fixup! Add a cache invalidation clean-up task
* Update synapse/storage/databases/main/cache.py
Co-authored-by: Eric Eastwood <erice@element.io>
* Update synapse/storage/databases/main/cache.py
Co-authored-by: Eric Eastwood <erice@element.io>
* MILLISEC -> MS
* Expand on comment
* Move and tweak comment about Postgres
* Use `wrap_as_background_process`
---------
Signed-off-by: Olivier Wilkinson (reivilibre) <oliverw@matrix.org>
Co-authored-by: Eric Eastwood <erice@element.io>
For now this maintains compatible with old Synapses by falling back
to using transaction semantics on a per-access token. A future version
of Synapse will drop support for this.
And fix a bug in the implementation of the updated redaction
format (MSC2174) where the top-level redacts field was not
properly added for backwards-compatibility.
Old device entries for the same user were being removed in individual
SQL commands, making the batch take way longer than necessary.
This combines the commands into a single one with a IN/ANY clause.
Example of log entry before the change, regularly observed with
"log_min_duration_statement = 10000" in PostgreSQL's config:
LOG: duration: 42538.282 ms statement:
DELETE FROM device_lists_stream
WHERE user_id = '@someone' AND device_id = 'someid1'
AND stream_id < 123456789
;
DELETE FROM device_lists_stream
WHERE user_id = '@someone' AND device_id = 'someid2'
AND stream_id < 123456789
;
[repeated for each device ID of that user, potentially a lot...]
With the patch applied on my instance for the past couple of days, I
no longer notice overly long statements of that particular kind.
Signed-off-by: pacien <pacien.trangirard@pacien.net>
If you leave a room and forget it, then rejoin it, the room would be
missing from the next initial sync.
fixes#13262
Signed-off-by: Nicolas Werner <n.werner@famedly.com>
There appears to be a race where you can end up with entries in
`event_push_summary` with both a `NULL` and `main` thread ID.
Fixes#15736
Introduced in #15597
Updates the database schema to require a thread_id (by adding a
constraint that the column is non-null) for event_push_actions,
event_push_actions_staging, and event_push_actions_summary.
For PostgreSQL we add the constraint as NOT VALID, then
VALIDATE the constraint a background job to avoid locking
the table during an upgrade.
Each table is updated as a separate schema delta to avoid
deadlocks between them.
For SQLite we simply rebuild the table & copy the data.
The cached decorators always return a Deferred, which was not
properly propagated. It was close enough when wrapping coroutines,
but failed if a bare function was wrapped.
```
2023-05-21 09:30:09,288 - synapse.logging.opentracing - 940 - ERROR - POST-1 - @trace may not have wrapped StateStorageController.get_state_for_groups correctly! The function is not async but returned a coroutine
```
Tracing instrumentation for these functions originally introduced in https://github.com/matrix-org/synapse/pull/15610
Instrument `state` and `state_group` storage related things (tracing) so it's a little more clear where these database transactions are coming from as there is a lot of wires crossing in these functions.
Part of `/messages` performance investigation: https://github.com/matrix-org/synapse/issues/13356
R30v2 has been out since 2021-07-19 (https://github.com/matrix-org/synapse/pull/10332)
and we started collecting stats on 2021-08-16. Since it's been over a year now
(almost 2 years), this is enough grace period for us to now rip it out.
If the previous read marker is pointing to an event that no longer exists
(e.g. due to retention) then assume that the newly given read marker
is newer.
Fix the following `mypy` errors when running `mypy` with Python 3.7:
```
synapse/storage/controllers/stats.py:58: error: "Counter" is not subscriptable, use "typing.Counter" instead [misc]
tests/test_state.py:267: error: "dict" is not subscriptable, use "typing.Dict" instead [misc]
```
Part of https://github.com/matrix-org/synapse/issues/15603
In Python 3.9, `typing` is deprecated and the types are subscriptable (generics) by default, https://peps.python.org/pep-0585/#implementation
Add an `is_mine_server_name` method, similar to `is_mine_id`.
Ideally we would use this consistently, instead of sometimes comparing
against `hs.hostname` and other times reaching into
`hs.config.server.server_name`.
Also fix a bug in the tests where `hs.hostname` would sometimes differ
from `hs.config.server.server_name`.
Signed-off-by: Sean Quah <seanq@matrix.org>
Enforce that we use index scans (rather than seq scans), which we also do for state queries. The reason to enforce this is that we can't correctly get PostgreSQL to understand the distribution of `stream_ordering` depends on `highlight`, and so it always defaults (on matrix.org) to sequential scans.
Updates the database schema to require a thread_id (by adding a
constraint that the column is non-null) for event_push_actions,
event_push_actions_staging, and event_push_actions_summary.
For PostgreSQL we add the constraint as NOT VALID, then
VALIDATE the constraint a background job to avoid locking
the table during an upgrade.
For SQLite we simply rebuild the table & copy the data.
Adds an optional keyword argument to the /relations API which
will recurse a limited number of event relationships.
This will cause the API to return not just the events related to the
parent event, but also events related to those related to the parent
event, etc.
This is disabled by default behind an experimental configuration
flag and is currently implemented using prefixed parameters.
MSC3983 provides a way to request multiple OTKs at once from appservices,
this extends this concept to the Client-Server API.
Note that this will likely be spit out into a separate MSC, but is currently part of
MSC3983.
Cleans-up the schema delta files:
* Removes no-op functions.
* Adds missing type hints to function parameters.
* Fixes any issues with type hints.
This also renames one (very old) schema delta to avoid a conflict
that mypy complains about.
It can be useful to always return the fallback key when attempting to
claim keys. This adds an unstable endpoint for `/keys/claim` which
always returns fallback keys in addition to one-time-keys.
The fallback key(s) are not marked as "used" unless there are no
corresponding OTKs.
This is currently defined in MSC3983 (although likely to be split out
to a separate MSC). The endpoint shape may change or be requested
differently (i.e. a keyword parameter on the current endpoint), but the
core logic should be reasonable.
Before this change:
* `PerspectivesKeyFetcher` and `ServerKeyFetcher` write to `server_keys_json`.
* `PerspectivesKeyFetcher` also writes to `server_signature_keys`.
* `StoreKeyFetcher` reads from `server_signature_keys`.
After this change:
* `PerspectivesKeyFetcher` and `ServerKeyFetcher` write to `server_keys_json`.
* `PerspectivesKeyFetcher` also writes to `server_signature_keys`.
* `StoreKeyFetcher` reads from `server_keys_json`.
This results in `StoreKeyFetcher` now using the results from `ServerKeyFetcher`
in addition to those from `PerspectivesKeyFetcher`, i.e. keys which are directly
fetched from a server will now be pulled from the database instead of refetched.
An additional minor change is included to avoid creating a `PerspectivesKeyFetcher`
(and checking it) if no `trusted_key_servers` are configured.
The overall impact of this should be better usage of cached results:
* If a server has no trusted key servers configured then it should reduce how often keys
are fetched.
* if a server's trusted key server does not have a requested server's keys cached then it
should reduce how often keys are directly fetched.
* More precise type for LoggingTransaction.execute
* Add an annotation for stream_ordering_month_ago
This would have spotted the error that was fixed in "Add comma missing from #15382. (#15429)"
c.f. #15264
The two changes are:
1. Add indexes so that the select / deletes don't do sequential scans
2. Don't repeatedly call `SELECT count(*)` each iteration, as that's slow
* Change `store_server_verify_keys` to take a `Mapping[(str, str), FKR]`
This is because we already can't handle duplicate keys — leads to cardinality violation
* Newsfile
Signed-off-by: Olivier Wilkinson (reivilibre) <oliverw@matrix.org>
---------
Signed-off-by: Olivier Wilkinson (reivilibre) <oliverw@matrix.org>
* Revert "Fix registering a device on an account with lots of devices (#15348)"
This reverts commit f0d8f66eaa.
* Revert "Delete stale non-e2e devices for users, take 3 (#15183)"
This reverts commit 78cdb72cd6.
Clean-up from adding the thread_id column, which was initially
null but backfilled with values. It is desirable to require it to now
be non-null.
In addition to altering this column to be non-null, we clean up
obsolete background jobs, indexes, and just-in-time updating
code.
Previously, we would spin in a tight loop until
`update_state_for_partial_state_event` stopped raising
`FederationPullAttemptBackoffError`s. Replace the spinloop with a wait
until the backoff period has expired.
Signed-off-by: Sean Quah <seanq@matrix.org>
