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b93bd95e8a
When loading current ids, sort by stream ID so that we don't want to overwrite the `current_position` of an instance to a lower stream ID than we're actually at ([discussion](https://github.com/matrix-org/synapse/pull/13585#discussion_r951795379)). Previously, it sorted alphabetically by instance name which can be `null` and throw errors but more importantly, accomplishes nothing. Fixes the following startup error which is why I started looking into this area: ``` $ poetry run synapse_homeserver --config-path homeserver.yaml **************************************************************** Error during initialisation: '<' not supported between instances of 'NoneType' and 'str' There may be more information in the logs. **************************************************************** ``` Somehow my database ended up looking like the following, notice the `instance_name` is `null` in the db, and we can't sort `NoneType` things. Another question is why do we see the `instance_name` as `null` sometimes instead of `master` in monolith mode? ``` $ psql synapse synapse=# SELECT * FROM stream_positions; stream_name | instance_name | stream_id -----------------+---------------+----------- account_data | master | 1242 events | master | 1787 to_device | master | 58 presence_stream | master | 485638 receipts | master | 341 backfill | master | -139106 (6 rows) synapse=# SELECT instance_name, stream_id FROM receipts_linearized; instance_name | stream_id ---------------+----------- | 211 | 3 | 4 | 212 | 213 | 224 | 228 | 164 | 313 | 253 | 38 | 321 | 324 | 189 | 192 | 193 | 194 | 195 | 197 | 198 | 275 | 79 | 339 | 340 | 82 | 341 | 84 | 85 | 91 | 119 ``` |
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| _scripts | ||
| api | ||
| app | ||
| appservice | ||
| config | ||
| crypto | ||
| events | ||
| federation | ||
| handlers | ||
| http | ||
| logging | ||
| metrics | ||
| module_api | ||
| push | ||
| replication | ||
| res | ||
| rest | ||
| server_notices | ||
| spam_checker_api | ||
| state | ||
| static | ||
| storage | ||
| streams | ||
| util | ||
| __init__.py | ||
| event_auth.py | ||
| notifier.py | ||
| py.typed | ||
| server.py | ||
| types.py | ||
| visibility.py | ||