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Reduce likelihood of Postgres table scanning state_groups_state. #10359

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merged 5 commits into from
Jul 15, 2021
Merged

Reduce likelihood of Postgres table scanning state_groups_state. #10359

merged 5 commits into from
Jul 15, 2021

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erikjohnston
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@erikjohnston erikjohnston commented Jul 9, 2021 •
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The postgres statistics collector sometimes massively underestimates the
number of distinct state groups are in the state_groups_state, which
can cause postgres to use table scans for queries for multiple state
groups.

We fix this by manually setting n_distinct on the column.

Note that the value -0.02 was taken by looking at jki.re's database.

Fixes #5064

@erikjohnston
Reduce likelihood of Postgres table scanning state_groups_state.
4cebdd9 
The postgres statistics collector sometimes massively underestimates the
number of distinct state groups are in the `state_groups_state`, which
can cause postgres to use table scans for queries for multiple state
groups.

We fix this by manually setting `n_distinct` on the column.
@erikjohnston
Newsfile
9d48317
@erikjohnston erikjohnston requested a review from a team July 9, 2021 16:20
Half-Shot
Half-Shot reviewed Jul 12, 2021
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synapse/storage/schema/main/delta/61/02state_groups_state_n_distinct.sql.postgres Outdated
-- our estimate is going to be better than the one made by the statistics
-- collector.

ALTER TABLE state_groups_state ALTER COLUMN state_group SET (n_dinstict = -0.02)
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itym

Suggested change
ALTER TABLE state_groups_state ALTER COLUMN state_group SET (n_dinstict = -0.02)
ALTER TABLE state_groups_state ALTER COLUMN state_group SET (n_distinct = -0.02)

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Thanks! I was confused why this didn't error, but it turns out if you forget the semicolon on the end we don't even run the command...

@Half-Shot Half-Shot mentioned this pull request Jul 12, 2021
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grinapo
grinapo reviewed Jul 12, 2021
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synapse/storage/schema/main/delta/61/02state_groups_state_n_distinct.sql.postgres Outdated
ALTER TABLE state_groups_state ALTER COLUMN state_group SET (n_distinct = -0.02);

-- Ideally we'd do an `ANALYZE state_groups_state (state_group)` here so that
-- the above gets picked up immediately, but that can take a bit of time so we
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As a sidenote: on my 72GB sized db the ANALYZE above it took about 1500 ms.

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@MTRNord MTRNord Jul 12, 2021 •
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For my db it was around 2.5s but the result of analyze caused it to be noticeable slower than with the ALTER TABLE.

@erikjohnston @richvdh
Apply suggestions from code review
40e2bc0 
Co-authored-by: Richard van der Hoff <1389908+richvdh@users.noreply.github.com>
@erikjohnston erikjohnston enabled auto-merge (squash) July 13, 2021 10:33
@erikjohnston erikjohnston merged commit 3acf85c into develop Jul 15, 2021
@erikjohnston erikjohnston deleted the erikj/pg_state_groups_state_stats branch July 15, 2021 15:02
anoadragon453 added a commit that referenced this pull request Jul 20, 2021
@anoadragon453
Merge tag 'v1.39.0rc1' into develop
b181dc4 
Synapse 1.39.0rc1 (2021-07-20)
==============================

The Third-Party Event Rules module interface has been deprecated in favour of the generic module interface introduced in Synapse v1.37.0. Support for the old interface is planned to be removed in September 2021. See the [upgrade notes](https://matrix-org.github.io/synapse/latest/upgrade.html#upgrading-to-v1390) for more information.

Features
--------

- Add the ability to override the account validity feature with a module. ([\#9884](#9884))
- The spaces summary API now returns any joinable rooms, not only rooms which are world-readable. ([\#10298](#10298), [\#10305](#10305))
- Add a new version of the R30 phone-home metric, which removes a false impression of retention given by the old R30 metric. ([\#10332](#10332), [\#10427](#10427))
- Allow providing credentials to `http_proxy`. ([\#10360](#10360))

Bugfixes
--------

- Fix error while dropping locks on shutdown. Introduced in v1.38.0. ([\#10433](#10433))
- Add base starting insertion event when no chunk ID is specified in the historical batch send API. ([\#10250](#10250))
- Fix historical batch send endpoint (MSC2716) rejecting batches with messages from multiple senders. ([\#10276](#10276))
- Fix purging rooms that other homeservers are still sending events for. Contributed by @ilmari. ([\#10317](#10317))
- Fix errors during backfill caused by previously purged redaction events. Contributed by Andreas Rammhold (@andir). ([\#10343](#10343))
- Fix the user directory becoming broken (and noisy errors being logged) when knocking and room statistics are in use. ([\#10344](#10344))
- Fix newly added `synapse_federation_server_oldest_inbound_pdu_in_staging` prometheus metric to measure age rather than timestamp. ([\#10355](#10355))
- Fix PostgreSQL sometimes using table scans for queries against `state_groups_state` table, taking a long time and a large amount of IO. ([\#10359](#10359))
- Fix `make_room_admin` failing for users that have left a private room. ([\#10367](#10367))
- Fix a number of logged errors caused by remote servers being down. ([\#10400](#10400), [\#10414](#10414))
- Responses from `/make_{join,leave,knock}` no longer include signatures, which will turn out to be invalid after events are returned to `/send_{join,leave,knock}`. ([\#10404](#10404))

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

- Updated installation dependencies for newer macOS versions and ARM Macs. Contributed by Luke Walsh. ([\#9971](#9971))
- Simplify structure of room admin API. ([\#10313](#10313))
- Refresh the logcontext dev documentation. ([\#10353](#10353)), ([\#10337](#10337))
- Add delegation example for caddy in the reverse proxy documentation. Contributed by @moritzdietz. ([\#10368](#10368))
- Fix and clarify some links in `docs` and `contrib`. ([\#10370](#10370)), ([\#10322](#10322)), ([\#10399](#10399))
- Make deprecation notice of the spam checker doc more obvious. ([\#10395](#10395))
- Add instructions on installing Debian packages for release candidates. ([\#10396](#10396))

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

- Remove functionality associated with the unused `room_stats_historical` and `user_stats_historical` tables. Contributed by @xmunoz. ([\#9721](#9721))
- The third-party event rules module interface is deprecated in favour of the generic module interface introduced in Synapse v1.37.0. See the [upgrade notes](https://matrix-org.github.io/synapse/latest/upgrade.html#upgrading-to-v1390) for more information. ([\#10386](#10386))

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

- Convert `room_depth.min_depth` column to a `BIGINT`. ([\#10289](#10289))
- Add tests to characterise the current behaviour of R30 phone-home metrics. ([\#10315](#10315))
- Rebuild event context and auth when processing specific results from `ThirdPartyEventRules` modules. ([\#10316](#10316))
- Minor change to the code that populates `user_daily_visits`. ([\#10324](#10324))
- Re-enable Sytests that were disabled for the 1.37.1 release. ([\#10345](#10345), [\#10357](#10357))
- Run `pyupgrade` on the codebase. ([\#10347](#10347), [\#10348](#10348))
- Switch `application_services_txns.txn_id` database column to `BIGINT`. ([\#10349](#10349))
- Convert internal type variable syntax to reflect wider ecosystem use. ([\#10350](#10350), [\#10380](#10380), [\#10381](#10381), [\#10382](#10382), [\#10418](#10418))
- Make the Github Actions workflow configuration more efficient. ([\#10383](#10383))
- Add type hints to `get_{domain,localpart}_from_id`. ([\#10385](#10385))
- When building Debian packages for prerelease versions, set the Section accordingly. ([\#10391](#10391))
- Add type hints and comments to event auth code. ([\#10393](#10393))
- Stagger sending of presence update to remote servers, reducing CPU spikes caused by starting many connections to remote servers at once. ([\#10398](#10398))
- Remove unused `events_by_room` code (tech debt). ([\#10421](#10421))
- Add a github actions job which records success of other jobs. ([\#10430](#10430))
erikjohnston added a commit that referenced this pull request Jul 29, 2021
@erikjohnston
Merge tag 'v1.39.0'
a6e2c16 
Synapse 1.39.0 (2021-07-29)
===========================

No significant changes.

Synapse 1.39.0rc3 (2021-07-28)
==============================

Bugfixes
--------

- Fix a bug introduced in Synapse 1.38 which caused an exception at startup when SAML authentication was enabled. ([\#10477](#10477))
- Fix a long-standing bug where Synapse would not inform clients that a device had exhausted its one-time-key pool, potentially causing problems decrypting events. ([\#10485](#10485))
- Fix reporting old R30 stats as R30v2 stats. Introduced in v1.39.0rc1. ([\#10486](#10486))

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

- Fix an error which prevented the Github Actions workflow to build the docker images from running. ([\#10461](#10461))
- Fix release script to correctly version debian changelog when doing RCs. ([\#10465](#10465))

Synapse 1.39.0rc2 (2021-07-22)
==============================

This release also includes the changes in v1.38.1.

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

- Move docker image build to Github Actions. ([\#10416](#10416))

Synapse 1.39.0rc1 (2021-07-20)
==============================

The Third-Party Event Rules module interface has been deprecated in favour of the generic module interface introduced in Synapse v1.37.0. Support for the old interface is planned to be removed in September 2021. See the [upgrade notes](https://matrix-org.github.io/synapse/latest/upgrade.html#upgrading-to-v1390) for more information.

Features
--------

- Add the ability to override the account validity feature with a module. ([\#9884](#9884))
- The spaces summary API now returns any joinable rooms, not only rooms which are world-readable. ([\#10298](#10298), [\#10305](#10305))
- Add a new version of the R30 phone-home metric, which removes a false impression of retention given by the old R30 metric. ([\#10332](#10332), [\#10427](#10427))
- Allow providing credentials to `http_proxy`. ([\#10360](#10360))

Bugfixes
--------

- Fix error while dropping locks on shutdown. Introduced in v1.38.0. ([\#10433](#10433))
- Add base starting insertion event when no chunk ID is specified in the historical batch send API. ([\#10250](#10250))
- Fix historical batch send endpoint (MSC2716) rejecting batches with messages from multiple senders. ([\#10276](#10276))
- Fix purging rooms that other homeservers are still sending events for. Contributed by @ilmari. ([\#10317](#10317))
- Fix errors during backfill caused by previously purged redaction events. Contributed by Andreas Rammhold (@andir). ([\#10343](#10343))
- Fix the user directory becoming broken (and noisy errors being logged) when knocking and room statistics are in use. ([\#10344](#10344))
- Fix newly added `synapse_federation_server_oldest_inbound_pdu_in_staging` prometheus metric to measure age rather than timestamp. ([\#10355](#10355))
- Fix PostgreSQL sometimes using table scans for queries against `state_groups_state` table, taking a long time and a large amount of IO. ([\#10359](#10359))
- Fix `make_room_admin` failing for users that have left a private room. ([\#10367](#10367))
- Fix a number of logged errors caused by remote servers being down. ([\#10400](#10400), [\#10414](#10414))
- Responses from `/make_{join,leave,knock}` no longer include signatures, which will turn out to be invalid after events are returned to `/send_{join,leave,knock}`. ([\#10404](#10404))

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

- Updated installation dependencies for newer macOS versions and ARM Macs. Contributed by Luke Walsh. ([\#9971](#9971))
- Simplify structure of room admin API. ([\#10313](#10313))
- Refresh the logcontext dev documentation. ([\#10353](#10353)), ([\#10337](#10337))
- Add delegation example for caddy in the reverse proxy documentation. Contributed by @moritzdietz. ([\#10368](#10368))
- Fix and clarify some links in `docs` and `contrib`. ([\#10370](#10370)), ([\#10322](#10322)), ([\#10399](#10399))
- Make deprecation notice of the spam checker doc more obvious. ([\#10395](#10395))
- Add instructions on installing Debian packages for release candidates. ([\#10396](#10396))

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

- Remove functionality associated with the unused `room_stats_historical` and `user_stats_historical` tables. Contributed by @xmunoz. ([\#9721](#9721))
- The third-party event rules module interface is deprecated in favour of the generic module interface introduced in Synapse v1.37.0. See the [upgrade notes](https://matrix-org.github.io/synapse/latest/upgrade.html#upgrading-to-v1390) for more information. ([\#10386](#10386))

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

- Convert `room_depth.min_depth` column to a `BIGINT`. ([\#10289](#10289))
- Add tests to characterise the current behaviour of R30 phone-home metrics. ([\#10315](#10315))
- Rebuild event context and auth when processing specific results from `ThirdPartyEventRules` modules. ([\#10316](#10316))
- Minor change to the code that populates `user_daily_visits`. ([\#10324](#10324))
- Re-enable Sytests that were disabled for the 1.37.1 release. ([\#10345](#10345), [\#10357](#10357))
- Run `pyupgrade` on the codebase. ([\#10347](#10347), [\#10348](#10348))
- Switch `application_services_txns.txn_id` database column to `BIGINT`. ([\#10349](#10349))
- Convert internal type variable syntax to reflect wider ecosystem use. ([\#10350](#10350), [\#10380](#10380), [\#10381](#10381), [\#10382](#10382), [\#10418](#10418))
- Make the Github Actions workflow configuration more efficient. ([\#10383](#10383))
- Add type hints to `get_{domain,localpart}_from_id`. ([\#10385](#10385))
- When building Debian packages for prerelease versions, set the Section accordingly. ([\#10391](#10391))
- Add type hints and comments to event auth code. ([\#10393](#10393))
- Stagger sending of presence update to remote servers, reducing CPU spikes caused by starting many connections to remote servers at once. ([\#10398](#10398))
- Remove unused `events_by_room` code (tech debt). ([\#10421](#10421))
- Add a github actions job which records success of other jobs. ([\#10430](#10430))
aaronraimist added a commit to aaronraimist/synapse that referenced this pull request Jul 29, 2021
@aaronraimist
Merge tag 'v1.39.0' into 2021-05
bd221ce 
Synapse 1.39.0 (2021-07-29)
===========================

No significant changes.

Synapse 1.39.0rc3 (2021-07-28)
==============================

Bugfixes
--------

- Fix a bug introduced in Synapse 1.38 which caused an exception at startup when SAML authentication was enabled. ([\matrix-org#10477](matrix-org#10477))
- Fix a long-standing bug where Synapse would not inform clients that a device had exhausted its one-time-key pool, potentially causing problems decrypting events. ([\matrix-org#10485](matrix-org#10485))
- Fix reporting old R30 stats as R30v2 stats. Introduced in v1.39.0rc1. ([\matrix-org#10486](matrix-org#10486))

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

- Fix an error which prevented the Github Actions workflow to build the docker images from running. ([\matrix-org#10461](matrix-org#10461))
- Fix release script to correctly version debian changelog when doing RCs. ([\matrix-org#10465](matrix-org#10465))

Synapse 1.39.0rc2 (2021-07-22)
==============================

This release also includes the changes in v1.38.1.

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

- Move docker image build to Github Actions. ([\matrix-org#10416](matrix-org#10416))

Synapse 1.39.0rc1 (2021-07-20)
==============================

The Third-Party Event Rules module interface has been deprecated in favour of the generic module interface introduced in Synapse v1.37.0. Support for the old interface is planned to be removed in September 2021. See the [upgrade notes](https://matrix-org.github.io/synapse/latest/upgrade.html#upgrading-to-v1390) for more information.

Features
--------

- Add the ability to override the account validity feature with a module. ([\matrix-org#9884](matrix-org#9884))
- The spaces summary API now returns any joinable rooms, not only rooms which are world-readable. ([\matrix-org#10298](matrix-org#10298), [\matrix-org#10305](matrix-org#10305))
- Add a new version of the R30 phone-home metric, which removes a false impression of retention given by the old R30 metric. ([\matrix-org#10332](matrix-org#10332), [\matrix-org#10427](matrix-org#10427))
- Allow providing credentials to `http_proxy`. ([\matrix-org#10360](matrix-org#10360))

Bugfixes
--------

- Fix error while dropping locks on shutdown. Introduced in v1.38.0. ([\matrix-org#10433](matrix-org#10433))
- Add base starting insertion event when no chunk ID is specified in the historical batch send API. ([\matrix-org#10250](matrix-org#10250))
- Fix historical batch send endpoint (MSC2716) rejecting batches with messages from multiple senders. ([\matrix-org#10276](matrix-org#10276))
- Fix purging rooms that other homeservers are still sending events for. Contributed by @ilmari. ([\matrix-org#10317](matrix-org#10317))
- Fix errors during backfill caused by previously purged redaction events. Contributed by Andreas Rammhold (@andir). ([\matrix-org#10343](matrix-org#10343))
- Fix the user directory becoming broken (and noisy errors being logged) when knocking and room statistics are in use. ([\matrix-org#10344](matrix-org#10344))
- Fix newly added `synapse_federation_server_oldest_inbound_pdu_in_staging` prometheus metric to measure age rather than timestamp. ([\matrix-org#10355](matrix-org#10355))
- Fix PostgreSQL sometimes using table scans for queries against `state_groups_state` table, taking a long time and a large amount of IO. ([\matrix-org#10359](matrix-org#10359))
- Fix `make_room_admin` failing for users that have left a private room. ([\matrix-org#10367](matrix-org#10367))
- Fix a number of logged errors caused by remote servers being down. ([\matrix-org#10400](matrix-org#10400), [\matrix-org#10414](matrix-org#10414))
- Responses from `/make_{join,leave,knock}` no longer include signatures, which will turn out to be invalid after events are returned to `/send_{join,leave,knock}`. ([\matrix-org#10404](matrix-org#10404))

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

- Updated installation dependencies for newer macOS versions and ARM Macs. Contributed by Luke Walsh. ([\matrix-org#9971](matrix-org#9971))
- Simplify structure of room admin API. ([\matrix-org#10313](matrix-org#10313))
- Refresh the logcontext dev documentation. ([\matrix-org#10353](matrix-org#10353)), ([\matrix-org#10337](matrix-org#10337))
- Add delegation example for caddy in the reverse proxy documentation. Contributed by @moritzdietz. ([\matrix-org#10368](matrix-org#10368))
- Fix and clarify some links in `docs` and `contrib`. ([\matrix-org#10370](matrix-org#10370)), ([\matrix-org#10322](matrix-org#10322)), ([\matrix-org#10399](matrix-org#10399))
- Make deprecation notice of the spam checker doc more obvious. ([\matrix-org#10395](matrix-org#10395))
- Add instructions on installing Debian packages for release candidates. ([\matrix-org#10396](matrix-org#10396))

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

- Remove functionality associated with the unused `room_stats_historical` and `user_stats_historical` tables. Contributed by @xmunoz. ([\matrix-org#9721](matrix-org#9721))
- The third-party event rules module interface is deprecated in favour of the generic module interface introduced in Synapse v1.37.0. See the [upgrade notes](https://matrix-org.github.io/synapse/latest/upgrade.html#upgrading-to-v1390) for more information. ([\matrix-org#10386](matrix-org#10386))

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

- Convert `room_depth.min_depth` column to a `BIGINT`. ([\matrix-org#10289](matrix-org#10289))
- Add tests to characterise the current behaviour of R30 phone-home metrics. ([\matrix-org#10315](matrix-org#10315))
- Rebuild event context and auth when processing specific results from `ThirdPartyEventRules` modules. ([\matrix-org#10316](matrix-org#10316))
- Minor change to the code that populates `user_daily_visits`. ([\matrix-org#10324](matrix-org#10324))
- Re-enable Sytests that were disabled for the 1.37.1 release. ([\matrix-org#10345](matrix-org#10345), [\matrix-org#10357](matrix-org#10357))
- Run `pyupgrade` on the codebase. ([\matrix-org#10347](matrix-org#10347), [\matrix-org#10348](matrix-org#10348))
- Switch `application_services_txns.txn_id` database column to `BIGINT`. ([\matrix-org#10349](matrix-org#10349))
- Convert internal type variable syntax to reflect wider ecosystem use. ([\matrix-org#10350](matrix-org#10350), [\matrix-org#10380](matrix-org#10380), [\matrix-org#10381](matrix-org#10381), [\matrix-org#10382](matrix-org#10382), [\matrix-org#10418](matrix-org#10418))
- Make the Github Actions workflow configuration more efficient. ([\matrix-org#10383](matrix-org#10383))
- Add type hints to `get_{domain,localpart}_from_id`. ([\matrix-org#10385](matrix-org#10385))
- When building Debian packages for prerelease versions, set the Section accordingly. ([\matrix-org#10391](matrix-org#10391))
- Add type hints and comments to event auth code. ([\matrix-org#10393](matrix-org#10393))
- Stagger sending of presence update to remote servers, reducing CPU spikes caused by starting many connections to remote servers at once. ([\matrix-org#10398](matrix-org#10398))
- Remove unused `events_by_room` code (tech debt). ([\matrix-org#10421](matrix-org#10421))
- Add a github actions job which records success of other jobs. ([\matrix-org#10430](matrix-org#10430))
babolivier added a commit to matrix-org/synapse-dinsic that referenced this pull request Sep 1, 2021
@babolivier
Merge tag 'v1.39.0' into babolivier/dinsic_1.41.0
262007f 
Synapse 1.39.0 (2021-07-29)
===========================

No significant changes.

Synapse 1.39.0rc3 (2021-07-28)
==============================

Bugfixes
--------

- Fix a bug introduced in Synapse 1.38 which caused an exception at startup when SAML authentication was enabled. ([\#10477](matrix-org/synapse#10477))
- Fix a long-standing bug where Synapse would not inform clients that a device had exhausted its one-time-key pool, potentially causing problems decrypting events. ([\#10485](matrix-org/synapse#10485))
- Fix reporting old R30 stats as R30v2 stats. Introduced in v1.39.0rc1. ([\#10486](matrix-org/synapse#10486))

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

- Fix an error which prevented the Github Actions workflow to build the docker images from running. ([\#10461](matrix-org/synapse#10461))
- Fix release script to correctly version debian changelog when doing RCs. ([\#10465](matrix-org/synapse#10465))

Synapse 1.39.0rc2 (2021-07-22)
==============================

This release also includes the changes in v1.38.1.

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

- Move docker image build to Github Actions. ([\#10416](matrix-org/synapse#10416))

Synapse 1.39.0rc1 (2021-07-20)
==============================

The Third-Party Event Rules module interface has been deprecated in favour of the generic module interface introduced in Synapse v1.37.0. Support for the old interface is planned to be removed in September 2021. See the [upgrade notes](https://matrix-org.github.io/synapse/latest/upgrade.html#upgrading-to-v1390) for more information.

Features
--------

- Add the ability to override the account validity feature with a module. ([\#9884](matrix-org/synapse#9884))
- The spaces summary API now returns any joinable rooms, not only rooms which are world-readable. ([\#10298](matrix-org/synapse#10298), [\#10305](matrix-org/synapse#10305))
- Add a new version of the R30 phone-home metric, which removes a false impression of retention given by the old R30 metric. ([\#10332](matrix-org/synapse#10332), [\#10427](matrix-org/synapse#10427))
- Allow providing credentials to `http_proxy`. ([\#10360](matrix-org/synapse#10360))

Bugfixes
--------

- Fix error while dropping locks on shutdown. Introduced in v1.38.0. ([\#10433](matrix-org/synapse#10433))
- Add base starting insertion event when no chunk ID is specified in the historical batch send API. ([\#10250](matrix-org/synapse#10250))
- Fix historical batch send endpoint (MSC2716) rejecting batches with messages from multiple senders. ([\#10276](matrix-org/synapse#10276))
- Fix purging rooms that other homeservers are still sending events for. Contributed by @ilmari. ([\#10317](matrix-org/synapse#10317))
- Fix errors during backfill caused by previously purged redaction events. Contributed by Andreas Rammhold (@andir). ([\#10343](matrix-org/synapse#10343))
- Fix the user directory becoming broken (and noisy errors being logged) when knocking and room statistics are in use. ([\#10344](matrix-org/synapse#10344))
- Fix newly added `synapse_federation_server_oldest_inbound_pdu_in_staging` prometheus metric to measure age rather than timestamp. ([\#10355](matrix-org/synapse#10355))
- Fix PostgreSQL sometimes using table scans for queries against `state_groups_state` table, taking a long time and a large amount of IO. ([\#10359](matrix-org/synapse#10359))
- Fix `make_room_admin` failing for users that have left a private room. ([\#10367](matrix-org/synapse#10367))
- Fix a number of logged errors caused by remote servers being down. ([\#10400](matrix-org/synapse#10400), [\#10414](matrix-org/synapse#10414))
- Responses from `/make_{join,leave,knock}` no longer include signatures, which will turn out to be invalid after events are returned to `/send_{join,leave,knock}`. ([\#10404](matrix-org/synapse#10404))

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

- Updated installation dependencies for newer macOS versions and ARM Macs. Contributed by Luke Walsh. ([\#9971](matrix-org/synapse#9971))
- Simplify structure of room admin API. ([\#10313](matrix-org/synapse#10313))
- Refresh the logcontext dev documentation. ([\#10353](matrix-org/synapse#10353)), ([\#10337](matrix-org/synapse#10337))
- Add delegation example for caddy in the reverse proxy documentation. Contributed by @moritzdietz. ([\#10368](matrix-org/synapse#10368))
- Fix and clarify some links in `docs` and `contrib`. ([\#10370](matrix-org/synapse#10370)), ([\#10322](matrix-org/synapse#10322)), ([\#10399](matrix-org/synapse#10399))
- Make deprecation notice of the spam checker doc more obvious. ([\#10395](matrix-org/synapse#10395))
- Add instructions on installing Debian packages for release candidates. ([\#10396](matrix-org/synapse#10396))

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

- Remove functionality associated with the unused `room_stats_historical` and `user_stats_historical` tables. Contributed by @xmunoz. ([\#9721](matrix-org/synapse#9721))
- The third-party event rules module interface is deprecated in favour of the generic module interface introduced in Synapse v1.37.0. See the [upgrade notes](https://matrix-org.github.io/synapse/latest/upgrade.html#upgrading-to-v1390) for more information. ([\#10386](matrix-org/synapse#10386))

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

- Convert `room_depth.min_depth` column to a `BIGINT`. ([\#10289](matrix-org/synapse#10289))
- Add tests to characterise the current behaviour of R30 phone-home metrics. ([\#10315](matrix-org/synapse#10315))
- Rebuild event context and auth when processing specific results from `ThirdPartyEventRules` modules. ([\#10316](matrix-org/synapse#10316))
- Minor change to the code that populates `user_daily_visits`. ([\#10324](matrix-org/synapse#10324))
- Re-enable Sytests that were disabled for the 1.37.1 release. ([\#10345](matrix-org/synapse#10345), [\#10357](matrix-org/synapse#10357))
- Run `pyupgrade` on the codebase. ([\#10347](matrix-org/synapse#10347), [\#10348](matrix-org/synapse#10348))
- Switch `application_services_txns.txn_id` database column to `BIGINT`. ([\#10349](matrix-org/synapse#10349))
- Convert internal type variable syntax to reflect wider ecosystem use. ([\#10350](matrix-org/synapse#10350), [\#10380](matrix-org/synapse#10380), [\#10381](matrix-org/synapse#10381), [\#10382](matrix-org/synapse#10382), [\#10418](matrix-org/synapse#10418))
- Make the Github Actions workflow configuration more efficient. ([\#10383](matrix-org/synapse#10383))
- Add type hints to `get_{domain,localpart}_from_id`. ([\#10385](matrix-org/synapse#10385))
- When building Debian packages for prerelease versions, set the Section accordingly. ([\#10391](matrix-org/synapse#10391))
- Add type hints and comments to event auth code. ([\#10393](matrix-org/synapse#10393))
- Stagger sending of presence update to remote servers, reducing CPU spikes caused by starting many connections to remote servers at once. ([\#10398](matrix-org/synapse#10398))
- Remove unused `events_by_room` code (tech debt). ([\#10421](matrix-org/synapse#10421))
- Add a github actions job which records success of other jobs. ([\#10430](matrix-org/synapse#10430))
Fizzadar pushed a commit to Fizzadar/synapse that referenced this pull request Oct 26, 2021
@bradtgmurray
Merge tag 'v1.39.0'
c9a3235 
Synapse 1.39.0 (2021-07-29)
===========================

No significant changes.

Synapse 1.39.0rc3 (2021-07-28)
==============================

Bugfixes
--------

- Fix a bug introduced in Synapse 1.38 which caused an exception at startup when SAML authentication was enabled. ([\matrix-org#10477](matrix-org#10477))
- Fix a long-standing bug where Synapse would not inform clients that a device had exhausted its one-time-key pool, potentially causing problems decrypting events. ([\matrix-org#10485](matrix-org#10485))
- Fix reporting old R30 stats as R30v2 stats. Introduced in v1.39.0rc1. ([\matrix-org#10486](matrix-org#10486))

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

- Fix an error which prevented the Github Actions workflow to build the docker images from running. ([\matrix-org#10461](matrix-org#10461))
- Fix release script to correctly version debian changelog when doing RCs. ([\matrix-org#10465](matrix-org#10465))

Synapse 1.39.0rc2 (2021-07-22)
==============================

This release also includes the changes in v1.38.1.

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

- Move docker image build to Github Actions. ([\matrix-org#10416](matrix-org#10416))

Synapse 1.39.0rc1 (2021-07-20)
==============================

The Third-Party Event Rules module interface has been deprecated in favour of the generic module interface introduced in Synapse v1.37.0. Support for the old interface is planned to be removed in September 2021. See the [upgrade notes](https://matrix-org.github.io/synapse/latest/upgrade.html#upgrading-to-v1390) for more information.

Features
--------

- Add the ability to override the account validity feature with a module. ([\matrix-org#9884](matrix-org#9884))
- The spaces summary API now returns any joinable rooms, not only rooms which are world-readable. ([\matrix-org#10298](matrix-org#10298), [\matrix-org#10305](matrix-org#10305))
- Add a new version of the R30 phone-home metric, which removes a false impression of retention given by the old R30 metric. ([\matrix-org#10332](matrix-org#10332), [\matrix-org#10427](matrix-org#10427))
- Allow providing credentials to `http_proxy`. ([\matrix-org#10360](matrix-org#10360))

Bugfixes
--------

- Fix error while dropping locks on shutdown. Introduced in v1.38.0. ([\matrix-org#10433](matrix-org#10433))
- Add base starting insertion event when no chunk ID is specified in the historical batch send API. ([\matrix-org#10250](matrix-org#10250))
- Fix historical batch send endpoint (MSC2716) rejecting batches with messages from multiple senders. ([\matrix-org#10276](matrix-org#10276))
- Fix purging rooms that other homeservers are still sending events for. Contributed by @ilmari. ([\matrix-org#10317](matrix-org#10317))
- Fix errors during backfill caused by previously purged redaction events. Contributed by Andreas Rammhold (@andir). ([\matrix-org#10343](matrix-org#10343))
- Fix the user directory becoming broken (and noisy errors being logged) when knocking and room statistics are in use. ([\matrix-org#10344](matrix-org#10344))
- Fix newly added `synapse_federation_server_oldest_inbound_pdu_in_staging` prometheus metric to measure age rather than timestamp. ([\matrix-org#10355](matrix-org#10355))
- Fix PostgreSQL sometimes using table scans for queries against `state_groups_state` table, taking a long time and a large amount of IO. ([\matrix-org#10359](matrix-org#10359))
- Fix `make_room_admin` failing for users that have left a private room. ([\matrix-org#10367](matrix-org#10367))
- Fix a number of logged errors caused by remote servers being down. ([\matrix-org#10400](matrix-org#10400), [\matrix-org#10414](matrix-org#10414))
- Responses from `/make_{join,leave,knock}` no longer include signatures, which will turn out to be invalid after events are returned to `/send_{join,leave,knock}`. ([\matrix-org#10404](matrix-org#10404))

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

- Updated installation dependencies for newer macOS versions and ARM Macs. Contributed by Luke Walsh. ([\matrix-org#9971](matrix-org#9971))
- Simplify structure of room admin API. ([\matrix-org#10313](matrix-org#10313))
- Refresh the logcontext dev documentation. ([\matrix-org#10353](matrix-org#10353)), ([\matrix-org#10337](matrix-org#10337))
- Add delegation example for caddy in the reverse proxy documentation. Contributed by @moritzdietz. ([\matrix-org#10368](matrix-org#10368))
- Fix and clarify some links in `docs` and `contrib`. ([\matrix-org#10370](matrix-org#10370)), ([\matrix-org#10322](matrix-org#10322)), ([\matrix-org#10399](matrix-org#10399))
- Make deprecation notice of the spam checker doc more obvious. ([\matrix-org#10395](matrix-org#10395))
- Add instructions on installing Debian packages for release candidates. ([\matrix-org#10396](matrix-org#10396))

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

- Remove functionality associated with the unused `room_stats_historical` and `user_stats_historical` tables. Contributed by @xmunoz. ([\matrix-org#9721](matrix-org#9721))
- The third-party event rules module interface is deprecated in favour of the generic module interface introduced in Synapse v1.37.0. See the [upgrade notes](https://matrix-org.github.io/synapse/latest/upgrade.html#upgrading-to-v1390) for more information. ([\matrix-org#10386](matrix-org#10386))

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

- Convert `room_depth.min_depth` column to a `BIGINT`. ([\matrix-org#10289](matrix-org#10289))
- Add tests to characterise the current behaviour of R30 phone-home metrics. ([\matrix-org#10315](matrix-org#10315))
- Rebuild event context and auth when processing specific results from `ThirdPartyEventRules` modules. ([\matrix-org#10316](matrix-org#10316))
- Minor change to the code that populates `user_daily_visits`. ([\matrix-org#10324](matrix-org#10324))
- Re-enable Sytests that were disabled for the 1.37.1 release. ([\matrix-org#10345](matrix-org#10345), [\matrix-org#10357](matrix-org#10357))
- Run `pyupgrade` on the codebase. ([\matrix-org#10347](matrix-org#10347), [\matrix-org#10348](matrix-org#10348))
- Switch `application_services_txns.txn_id` database column to `BIGINT`. ([\matrix-org#10349](matrix-org#10349))
- Convert internal type variable syntax to reflect wider ecosystem use. ([\matrix-org#10350](matrix-org#10350), [\matrix-org#10380](matrix-org#10380), [\matrix-org#10381](matrix-org#10381), [\matrix-org#10382](matrix-org#10382), [\matrix-org#10418](matrix-org#10418))
- Make the Github Actions workflow configuration more efficient. ([\matrix-org#10383](matrix-org#10383))
- Add type hints to `get_{domain,localpart}_from_id`. ([\matrix-org#10385](matrix-org#10385))
- When building Debian packages for prerelease versions, set the Section accordingly. ([\matrix-org#10391](matrix-org#10391))
- Add type hints and comments to event auth code. ([\matrix-org#10393](matrix-org#10393))
- Stagger sending of presence update to remote servers, reducing CPU spikes caused by starting many connections to remote servers at once. ([\matrix-org#10398](matrix-org#10398))
- Remove unused `events_by_room` code (tech debt). ([\matrix-org#10421](matrix-org#10421))
- Add a github actions job which records success of other jobs. ([\matrix-org#10430](matrix-org#10430))
@jffrancob jffrancob mentioned this pull request Mar 3, 2022
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state_groups_state uses a large sequential scan
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@erikjohnston @grinapo @MTRNord @richvdh @Half-Shot