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Remove configuration options for direct TCP replication. #13647

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Sep 6, 2022

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@clokep clokep commented Aug 26, 2022

Removes the ability to configure legacy direct TCP replication. Workers now require Redis to run.

This was deprecated in v1.18.0 from 2 years ago: 2020-07-30 (see release notes, upgrade notes). The blog post unfortunately doesn't seem to mention this.

Part of #11728. Requires matrix-org/sytest#1282.

@clokep clokep marked this pull request as ready for review August 26, 2022 16:07
@clokep clokep requested a review from a team as a code owner August 26, 2022 16:07
reivilibre
reivilibre previously approved these changes Aug 30, 2022
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This looks good to me; minor remarks follow.

Wonder if we would want to sneak in an announcement into the changelog for the release that's about to go out tomorrowish, just as a final warning? I don't think we need to, since it's been deprecated for such a long time, but also it's never been explicitly stated when it's going.
Could also consider forewarning in the announcements room?

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clokep and others added 2 commits August 30, 2022 15:07
Co-authored-by: reivilibre <oliverw@matrix.org>
Co-authored-by: reivilibre <oliverw@matrix.org>
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clokep commented Aug 30, 2022

Wonder if we would want to sneak in an announcement into the changelog for the release that's about to go out tomorrowish, just as a final warning? I don't think we need to, since it's been deprecated for such a long time, but also it's never been explicitly stated when it's going.

It might make sense to just put it at the top of the changelog and in the blog post?

squahtx pushed a commit that referenced this pull request Aug 31, 2022
Borrows some text from #13647
for the changelog.
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can we make worker_replication_port make an error?

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clokep commented Sep 1, 2022

can we make worker_replication_port make an error?

I've now done that. Since I was adding an error message I also added one for adding a replication-type listener.

@clokep clokep requested review from reivilibre and richvdh September 1, 2022 18:53
@erikjohnston erikjohnston added the X-Release-Blocker Must be resolved before making a release label Sep 1, 2022
@@ -135,7 +135,6 @@ def default_config(
"enable_registration_captcha": False,
"macaroon_secret_key": "not even a little secret",
"password_providers": [],
"worker_replication_url": "",
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This is not really related, but it was removed in 2017 in #2117.

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Good stuff! Thanks for starting us off; this should make it much easier to start pulling all of it out. Been wanting to do that for a while :)

@erikjohnston erikjohnston enabled auto-merge (squash) September 6, 2022 07:14
@erikjohnston erikjohnston merged commit 32fc3b7 into develop Sep 6, 2022
@erikjohnston erikjohnston deleted the clokep/rm-replication-config branch September 6, 2022 07:50
Fizzadar added a commit to beeper/synapse-legacy-fork that referenced this pull request Sep 15, 2022
Synapse 1.67.0 (2022-09-13)
===========================

This release removes using the deprecated direct TCP replication configuration
for workers. Server admins should use Redis instead. See the [upgrade
notes](https://matrix-org.github.io/synapse/v1.67/upgrade.html#upgrading-to-v1670).

The minimum version of `poetry` supported for managing source checkouts is now
1.2.0.

**Notice:** from the next major release (1.68.0) installing Synapse from a source
checkout will require a recent Rust compiler. Those using packages or
`pip install matrix-synapse` will not be affected. See the [upgrade
notes](https://matrix-org.github.io/synapse/v1.67/upgrade.html#upgrading-to-v1670).

**Notice:** from the next major release (1.68.0), running Synapse with a SQLite
database will require SQLite version 3.27.0 or higher. (The [current minimum
 version is SQLite 3.22.0](https://github.com/matrix-org/synapse/blob/release-v1.67/synapse/storage/engines/sqlite.py#L69-L78).)
See [matrix-org#12983](matrix-org#12983) and the [upgrade notes](https://matrix-org.github.io/synapse/v1.67/upgrade.html#upgrading-to-v1670) for more details.

No significant changes since 1.67.0rc1.

Synapse 1.67.0rc1 (2022-09-06)
==============================

Features
--------

- Support setting the registration shared secret in a file, via a new `registration_shared_secret_path` configuration option. ([\matrix-org#13614](matrix-org#13614))
- Change the default startup behaviour so that any missing "additional" configuration files (signing key, etc) are generated automatically. ([\matrix-org#13615](matrix-org#13615))
- Improve performance of sending messages in rooms with thousands of local users. ([\matrix-org#13634](matrix-org#13634))

Bugfixes
--------

- Fix a bug introduced in Synapse 1.13 where the [List Rooms admin API](https://matrix-org.github.io/synapse/develop/admin_api/rooms.html#list-room-api) would return integers instead of booleans for the `federatable` and `public` fields when using a Sqlite database. ([\matrix-org#13509](matrix-org#13509))
- Fix bug that user cannot `/forget` rooms after the last member has left the room. ([\matrix-org#13546](matrix-org#13546))
- Faster Room Joins: fix `/make_knock` blocking indefinitely when the room in question is a partial-stated room. ([\matrix-org#13583](matrix-org#13583))
- Fix loading the current stream position behind the actual position. ([\matrix-org#13585](matrix-org#13585))
- Fix a longstanding bug in `register_new_matrix_user` which meant it was always necessary to explicitly give a server URL. ([\matrix-org#13616](matrix-org#13616))
- Fix the running of [MSC1763](matrix-org/matrix-spec-proposals#1763) retention purge_jobs in deployments with background jobs running on a worker by forcing them back onto the main worker. Contributed by Brad @ Beeper. ([\matrix-org#13632](matrix-org#13632))
- Fix a long-standing bug that downloaded media for URL previews was not deleted while database background updates were running. ([\matrix-org#13657](matrix-org#13657))
- Fix [MSC3030](matrix-org/matrix-spec-proposals#3030) `/timestamp_to_event` endpoint to return the correct next event when the events have the same timestamp. ([\matrix-org#13658](matrix-org#13658))
- Fix bug where we wedge media plugins if clients disconnect early. Introduced in v1.22.0. ([\matrix-org#13660](matrix-org#13660))
- Fix a long-standing bug which meant that keys for unwhitelisted servers were not returned by `/_matrix/key/v2/query`. ([\matrix-org#13683](matrix-org#13683))
- Fix a bug introduced in Synapse v1.20.0 that would cause the unstable unread counts from [MSC2654](matrix-org/matrix-spec-proposals#2654) to be calculated even if the feature is disabled. ([\matrix-org#13694](matrix-org#13694))

Updates to the Docker image
---------------------------

- Update docker image to use a stable version of poetry. ([\matrix-org#13688](matrix-org#13688))

Improved Documentation
----------------------

- Improve the description of the ["chain cover index"](https://matrix-org.github.io/synapse/latest/auth_chain_difference_algorithm.html) used internally by Synapse. ([\matrix-org#13602](matrix-org#13602))
- Document how ["monthly active users"](https://matrix-org.github.io/synapse/latest/usage/administration/monthly_active_users.html) is calculated and used. ([\matrix-org#13617](matrix-org#13617))
- Improve documentation around user registration. ([\matrix-org#13640](matrix-org#13640))
- Remove documentation of legacy `frontend_proxy` worker app. ([\matrix-org#13645](matrix-org#13645))
- Clarify documentation that HTTP replication traffic can be protected with a shared secret. ([\matrix-org#13656](matrix-org#13656))
- Remove unintentional colons from [config manual](https://matrix-org.github.io/synapse/latest/usage/configuration/config_documentation.html) headers. ([\matrix-org#13665](matrix-org#13665))
- Update docs to make enabling metrics more clear. ([\matrix-org#13678](matrix-org#13678))
- Clarify `(room_id, event_id)` global uniqueness and how we should scope our database schemas. ([\matrix-org#13701](matrix-org#13701))

Deprecations and Removals
-------------------------

- Drop support for calling `/_matrix/client/v3/rooms/{roomId}/invite` without an `id_access_token`, which was not permitted by the spec. Contributed by @Vetchu. ([\matrix-org#13241](matrix-org#13241))
- Remove redundant `_get_joined_users_from_context` cache. Contributed by Nick @ Beeper (@Fizzadar). ([\matrix-org#13569](matrix-org#13569))
- Remove the ability to use direct TCP replication with workers. Direct TCP replication was deprecated in Synapse v1.18.0. Workers now require using Redis. ([\matrix-org#13647](matrix-org#13647))
- Remove support for unstable [private read receipts](matrix-org/matrix-spec-proposals#2285). ([\matrix-org#13653](matrix-org#13653), [\matrix-org#13692](matrix-org#13692))

Internal Changes
----------------

- Extend the release script to wait for GitHub Actions to finish and to be usable as a guide for the whole process. ([\matrix-org#13483](matrix-org#13483))
- Add experimental configuration option to allow disabling legacy Prometheus metric names. ([\matrix-org#13540](matrix-org#13540))
- Cache user IDs instead of profiles to reduce cache memory usage. Contributed by Nick @ Beeper (@Fizzadar). ([\matrix-org#13573](matrix-org#13573), [\matrix-org#13600](matrix-org#13600))
- Optimize how Synapse calculates domains to fetch from during backfill. ([\matrix-org#13575](matrix-org#13575))
- Comment about a better future where we can get the state diff between two events. ([\matrix-org#13586](matrix-org#13586))
- Instrument `_check_sigs_and_hash_and_fetch` to trace time spent in child concurrent calls for understandable traces in Jaeger. ([\matrix-org#13588](matrix-org#13588))
- Improve performance of `@cachedList`. ([\matrix-org#13591](matrix-org#13591))
- Minor speed up of fetching large numbers of push rules. ([\matrix-org#13592](matrix-org#13592))
- Optimise push action fetching queries. Contributed by Nick @ Beeper (@Fizzadar). ([\matrix-org#13597](matrix-org#13597))
- Rename `event_map` to `unpersisted_events` when computing the auth differences. ([\matrix-org#13603](matrix-org#13603))
- Refactor `get_users_in_room(room_id)` mis-use with dedicated `get_current_hosts_in_room(room_id)` function. ([\matrix-org#13605](matrix-org#13605))
- Use dedicated `get_local_users_in_room(room_id)` function to find local users when calculating `join_authorised_via_users_server` of a `/make_join` request. ([\matrix-org#13606](matrix-org#13606))
- Refactor `get_users_in_room(room_id)` mis-use to lookup single local user with dedicated `check_local_user_in_room(...)` function. ([\matrix-org#13608](matrix-org#13608))
- Drop unused column `application_services_state.last_txn`. ([\matrix-org#13627](matrix-org#13627))
- Improve readability of Complement CI logs by printing failure results last. ([\matrix-org#13639](matrix-org#13639))
- Generalise the `@cancellable` annotation so it can be used on functions other than just servlet methods. ([\matrix-org#13662](matrix-org#13662))
- Introduce a `CommonUsageMetrics` class to share some usage metrics between the Prometheus exporter and the phone home stats. ([\matrix-org#13671](matrix-org#13671))
- Add some logging to help track down matrix-org#13444. ([\matrix-org#13679](matrix-org#13679))
- Update poetry lock file for v1.2.0. ([\matrix-org#13689](matrix-org#13689))
- Add cache to `is_partial_state_room`. ([\matrix-org#13693](matrix-org#13693))
- Update the Grafana dashboard that is included with Synapse in the `contrib` directory. ([\matrix-org#13697](matrix-org#13697))
- Only run trial CI on all python versions on non-PRs. ([\matrix-org#13698](matrix-org#13698))
- Fix typechecking with latest types-jsonschema. ([\matrix-org#13712](matrix-org#13712))
- Reduce number of CI checks we run for PRs. ([\matrix-org#13713](matrix-org#13713))

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# Conflicts:
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#	synapse/push/bulk_push_rule_evaluator.py
#	synapse/storage/databases/main/event_push_actions.py
#	synapse/util/caches/descriptors.py
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