Commit Graph

43 Commits

Author SHA1 Message Date
Erik Johnston
c2d4467cd4
Enable reconnection in DB pool (#8726)
`adbapi.ConnectionPool` let's you turn on auto reconnect of DB connections. This is off by default.
As far as I can tell if its not enabled dead connections never get removed from the pool.

Maybe helps #8574
2020-11-12 14:26:24 +00:00
Dan Callahan
aff1eb7c67
Tell Black to format code for Python 3.5 (#8664)
This allows trailing commas in multi-line arg lists.

Minor, but we might as well keep our formatting current with regard to
our minimum supported Python version.

Signed-off-by: Dan Callahan <danc@element.io>
2020-10-27 23:26:36 +00:00
Jonathan de Jong
79c1f973ce
Pre-emptively fix synapse.storage.types.Connection for future mypy release (#8577)
Fix the Connection protocol according to typeshed's assertions about sqlite3.Connection
2020-10-17 09:51:38 +01:00
Erik Johnston
19b15d63e8
Use autocommit mode for single statement DB functions. (#8542)
Autocommit means that we don't wrap the functions in transactions, and instead get executed directly. Introduced in #8456. This will help:

1. reduce the number of `could not serialize access due to concurrent delete` errors that we see (though there are a few functions that often cause serialization errors that we don't fix here);
2. improve the DB performance, as it no longer needs to deal with the overhead of `REPEATABLE READ` isolation levels; and
3. improve wall clock speed of these functions, as we no longer need to send `BEGIN` and `COMMIT` to the DB.

Some notes about the differences between autocommit mode and our default `REPEATABLE READ` transactions:

1. Currently `autocommit` only applies when using PostgreSQL, and is ignored when using SQLite (due to silliness with [Twisted DB classes](https://twistedmatrix.com/trac/ticket/9998)).
2. Autocommit functions may get retried on error, which means they can get applied *twice* (or more) to the DB (since they are not in a transaction the previous call would not get rolled back). This means that the functions need to be idempotent (or otherwise not care about being called multiple times). Read queries, simple deletes, and updates/upserts that replace rows (rather than generating new values from existing rows) are all idempotent.
3. Autocommit functions no longer get executed in [`REPEATABLE READ`](https://www.postgresql.org/docs/current/transaction-iso.html) isolation level, and so data can change queries, which is fine for single statement queries.
2020-10-14 15:50:59 +01:00
Erik Johnston
ae5b2a72c0
Reduce serialization errors in MultiWriterIdGen (#8456)
We call `_update_stream_positions_table_txn` a lot, which is an UPSERT
that can conflict in `REPEATABLE READ` isolation level. Instead of doing
a transaction consisting of a single query we may as well run it outside
of a transaction.
2020-10-07 15:15:57 +01:00
Erik Johnston
e3debf9682
Add logging on startup/shutdown (#8448)
This is so we can tell what is going on when things are taking a while to start up.

The main change here is to ensure that transactions that are created during startup get correctly logged like normal transactions.
2020-10-02 15:20:45 +01:00
reivilibre
58f61f10f7
Catch-up after Federation Outage (split, 1) (#8230)
Signed-off-by: Olivier Wilkinson (reivilibre) <olivier@librepush.net>
2020-09-04 12:22:23 +01:00
reivilibre
e351298444
Fix type signature in simple_select_one_onecol and friends (#8241)
Co-authored-by: Patrick Cloke <clokep@users.noreply.github.com>
2020-09-04 12:02:29 +01:00
Patrick Cloke
c619253db8
Stop sub-classing object (#8249) 2020-09-04 06:54:56 -04:00
Patrick Cloke
c8758cb72f
Add an overload for simple_select_one_onecol_txn. (#8235) 2020-09-02 15:03:12 -04:00
Patrick Cloke
912e024913
Convert runInteraction to async/await (#8156) 2020-09-02 13:11:02 -04:00
Erik Johnston
112266eafd
Add StreamStore to mypy (#8232) 2020-09-02 17:52:38 +01:00
Patrick Cloke
b71d4a094c
Convert simple_delete to async/await. (#8191) 2020-08-27 14:16:41 -04:00
Patrick Cloke
c9fa696ea2
simple_search_list_txn should return None, not 0. (#8187) 2020-08-27 12:07:13 -04:00
Patrick Cloke
30426c7063
Convert additional database methods to async (select list, search, insert_many, delete_*) (#8168) 2020-08-27 07:41:01 -04:00
Patrick Cloke
4a739c73b4
Convert simple_update* and simple_select* to async (#8173) 2020-08-27 07:08:38 -04:00
Patrick Cloke
4c6c56dc58
Convert simple_select_one and simple_select_one_onecol to async (#8162) 2020-08-26 07:19:32 -04:00
Patrick Cloke
5eac0b7e76
Add more types to synapse.storage.database. (#8127) 2020-08-20 09:00:59 -04:00
Patrick Cloke
d89692ea84
Convert runWithConnection to async. (#8121) 2020-08-19 07:09:24 -04:00
Patrick Cloke
050e20e7ca
Convert some of the general database methods to async (#8100) 2020-08-17 12:18:01 -04:00
Erik Johnston
a7bdf98d01
Rename database classes to make some sense (#8033) 2020-08-05 21:38:57 +01:00
Andrew Morgan
8a25332d94
Move some log lines from default logger to sql/transaction loggers (#7952)
Idea from matrix-org/synapse-dinsic#49
2020-07-28 18:52:13 +01:00
Dagfinn Ilmari Mannsåker
a3f11567d9
Replace all remaining six usage with native Python 3 equivalents (#7704) 2020-06-16 08:51:47 -04:00
Patrick Cloke
bd6dc17221
Replace iteritems/itervalues/iterkeys with native versions. (#7692) 2020-06-15 07:03:36 -04:00
Richard van der Hoff
edd9a7214c
Replace device_27_unique_idx bg update with a fg one (#7562)
The bg update never managed to complete, because it kept being interrupted by
transactions which want to take a lock.

Just doing it in the foreground isn't that bad, and is a good deal simpler.
2020-05-26 11:43:17 +01:00
Richard van der Hoff
08fa96f030 Remove exception_to_unicode
this is a no-op on python 3.
2020-05-15 19:07:24 +01:00
Erik Johnston
1a1da60ad2
Fix new flake8 errors (#7470) 2020-05-12 11:20:48 +01:00
Richard van der Hoff
e48361545d use an upsert to update device_lists_outbound_last_success 2020-05-06 11:41:23 +01:00
Richard van der Hoff
0f6ebf393d Better type annotations for simple_upsert_txn
most of these params don't really need to be lists.
2020-05-06 11:41:23 +01:00
Richard van der Hoff
f31e65a749
bg update to clear out duplicate outbound_device_list_pokes (#7193)
We seem to have some duplicates, which could do with being cleared out.
2020-04-07 23:06:39 +01:00
Richard van der Hoff
39230d2171
Clean up some LoggingContext stuff (#7120)
* Pull Sentinel out of LoggingContext

... and drop a few unnecessary references to it

* Factor out LoggingContext.current_context

move `current_context` and `set_context` out to top-level functions.

Mostly this means that I can more easily trace what's actually referring to
LoggingContext, but I think it's generally neater.

* move copy-to-parent into `stop`

this really just makes `start` and `stop` more symetric. It also means that it
behaves correctly if you manually `set_log_context` rather than using the
context manager.

* Replace `LoggingContext.alive` with `finished`

Turn `alive` into `finished` and make it a bit better defined.
2020-03-24 14:45:33 +00:00
Brendan Abolivier
dc6fb56c5f
Hopefully mypy is happy now 2020-03-10 14:40:28 +00:00
Richard van der Hoff
132b673dbe
Add some type annotations in synapse.storage (#6987)
I cracked, and added some type definitions in synapse.storage.
2020-02-27 11:53:40 +00:00
Patrick Cloke
509e381afa
Clarify list/set/dict/tuple comprehensions and enforce via flake8 (#6957)
Ensure good comprehension hygiene using flake8-comprehensions.
2020-02-21 07:15:07 -05:00
Erik Johnston
7b7c3cedf2 Minor perf fixes to get_auth_chain_ids. 2020-02-19 15:47:11 +00:00
Michael Kaye
a831d2e4e3
Reduce performance logging to DEBUG (#6833)
* Reduce tnx performance logging to DEBUG
* Changelog.d
2020-02-05 08:57:37 +00:00
Erik Johnston
2284eb3a53
Add database config class (#6513)
This encapsulates config for a given database and is the way to get new
connections.
2019-12-18 10:45:12 +00:00
Erik Johnston
d537be1ebd Pass Database into the data store 2019-12-06 15:49:44 +00:00
Erik Johnston
2ace775d88 Merge branch 'develop' of github.com:matrix-org/synapse into erikj/make_database_class 2019-12-06 11:33:34 +00:00
Erik Johnston
e216ec381a Remove unused var 2019-12-06 11:16:37 +00:00
Erik Johnston
4a33a6dd19 Move background update handling out of store 2019-12-05 11:11:26 +00:00
Erik Johnston
8863624f78 Comments 2019-12-05 10:46:37 +00:00
Erik Johnston
756d4942f5 Move DB pool and helper functions into dedicated Database class 2019-12-05 10:46:37 +00:00