3110a81996
* Set default room version to 4
* Default to v1 when room_version key missing
Signed-off-by: Alex Chen <minecnly@gmail.com>
* Squashed commit of the following:
commit c1bca95adbe04a17d8feb91aa24dde9c4cffb1fb
Author: Kegsay <kegan@matrix.org>
Date: Thu Apr 16 10:06:55 2020 +0100
Add SQL tracing via DENDRITE_TRACE_SQL (#968)
* Add SQL tracing via DENDRITE_TRACE_SQL
Add this to `internal/sqlutil` in preparation for #897
* Not entirely
commit c2ea96190944d8e39b0c200e43b1eedfeeeb49a6
Author: Kegsay <kegan@matrix.org>
Date: Wed Apr 15 17:48:40 2020 +0100
Add HTTP trace logging (#965)
* Dump all requests/response server-side
* Wrap in DENDRITE_TRACE
* DENDRITE_TRACE_HTTP is better
* Bugfix for response body and linting
* False is true and true is false
* Linting
* How did this get missed
* More linting
* Update gomatrixserverlib
* Remove unneeded imports
Co-authored-by: Cnly <minecnly@gmail.com>
RoomServer
RoomServer Internals
Numeric IDs
To save space matrix string identifiers are mapped to local numeric IDs. The numeric IDs are more efficient to manipulate and use less space to store. The numeric IDs are never exposed in the API the room server exposes. The numeric IDs are converted to string IDs before they leave the room server. The numeric ID for a string ID is never 0 to avoid being confused with go's default zero value. Zero is used to indicate that there was no corresponding string ID. Well-known event types and event state keys are preassigned numeric IDs.
State Snapshot Storage
The room server stores the state of the matrix room at each event. For efficiency the state is stored as blocks of 3-tuples of numeric IDs for the event type, event state key and event ID. For further efficiency the state snapshots are stored as the combination of up to 64 these blocks. This allows blocks of the room state to be reused in multiple snapshots.
The resulting database tables look something like this:
+-------------------------------------------------------------------+
| Events |
+---------+-------------------+------------------+------------------+
| EventNID| EventTypeNID | EventStateKeyNID | StateSnapshotNID |
+---------+-------------------+------------------+------------------+
| 1 | m.room.create 1 | "" 1 | <nil> 0 |
| 2 | m.room.member 2 | "@user:foo" 2 | <nil> 0 |
| 3 | m.room.member 2 | "@user:bar" 3 | {1,2} 1 |
| 4 | m.room.message 3 | <nil> 0 | {1,2,3} 2 |
| 5 | m.room.member 2 | "@user:foo" 2 | {1,2,3} 2 |
| 6 | m.room.message 3 | <nil> 0 | {1,3,6} 3 |
+---------+-------------------+------------------+------------------+
+----------------------------------------+
| State Snapshots |
+-----------------------+----------------+
| EventStateSnapshotNID | StateBlockNIDs |
+-----------------------+----------------|
| 1 | {1} |
| 2 | {1,2} |
| 3 | {1,2,3} |
+-----------------------+----------------+
+-----------------------------------------------------------------+
| State Blocks |
+---------------+-------------------+------------------+----------+
| StateBlockNID | EventTypeNID | EventStateKeyNID | EventNID |
+---------------+-------------------+------------------+----------+
| 1 | m.room.create 1 | "" 1 | 1 |
| 1 | m.room.member 2 | "@user:foo" 2 | 2 |
| 2 | m.room.member 2 | "@user:bar" 3 | 3 |
| 3 | m.room.member 2 | "@user:foo" 2 | 6 |
+---------------+-------------------+------------------+----------+