Synapse 0.33.9 is here!

Well here you are then, the 9th episode in the Synapse 0.33.x series.

Features wise, 0.33.9 contains a change to the way that GDPR consent works under the hood. It is now plumbed in to the login flow (rather than following immediately afterwards) such that it does not inadvertently break on-boarding. This is part of a broader set of changes that span Synapse and Riot to improve initial first impressions of using matrix.

Separately we now have support for room version upgrades which is pre-requisite for rolling out the new state resolution algorithm, come and join us in #teststateresv2:jki.re if you would like to help us test.

Finally we’ve spent a bunch of time further improving perf especially in and around reducing device ids federation traffic.

I know I say it every time, but full python 3 support is really really close now, matrix.org is now running entirely on py3 and seeing some amazing perf improvements – the remaining blocker is getting py3 deb packages ready and then we’ll ship an official python 3 release. There will also be a blog post to explain what we’ve been up to and what to expect perf wise.

As ever, you can get the new update here or any of the sources mentioned at https://github.com/matrix-org/synapse. Note, Synapse is now available from PyPI, pick it up here. Also, check out our new Synapse installation guide page.
 

Synapse 0.33.9 changelog

Features

  • Include flags to optionally add m.login.terms to the registration flow when consent tracking is enabled. (#4004#4133#4142#4184)
  • Support for replacing rooms with new ones (#4091#4099#4100#4101)

Bugfixes

  • Fix exceptions when using the email mailer on Python 3. (#4095)
  • Fix e2e key backup with more than 9 backup versions (#4113)
  • Searches that request profile info now no longer fail with a 500. (#4122)
  • fix return code of empty key backups (#4123)
  • If the typing stream ID goes backwards (as on a worker when the master restarts), the worker’s typing handler will no longer erroneously report rooms containing new typing events. (#4127)
  • Fix table lock of device_lists_remote_cache which could freeze the application (#4132)
  • Fix exception when using state res v2 algorithm (#4135)
  • Generating the user consent URI no longer fails on Python 3. (#4140#4163)
  • Loading URL previews from the DB cache on Postgres will no longer cause Unicode type errors when responding to the request, and URL previews will no longer fail if the remote server returns a Content-Type header with the chartype in quotes. (#4157)
  • The hash_password script now works on Python 3. (#4161)
  • Fix noop checks when updating device keys, reducing spurious device list update notifications. (#4164)

Deprecations and Removals

  • The disused and un-specced identicon generator has been removed. (#4106)
  • The obsolete and non-functional /pull federation endpoint has been removed. (#4118)
  • The deprecated v1 key exchange endpoints have been removed. (#4119)
  • Synapse will no longer fetch keys using the fallback deprecated v1 key exchange method and will now always use v2. (#4120)

Internal Changes

  • Fix build of Docker image with docker-compose (#3778)
  • Delete unreferenced state groups during history purge (#4006)
  • The “Received rdata” log messages on workers is now logged at DEBUG, not INFO. (#4108)
  • Reduce replication traffic for device lists (#4109)
  • Fix synapse_replication_tcp_protocol_*_commands metric label to be full command name, rather than just the first character (#4110)
  • Log some bits about room creation (#4121)
  • Fix tox failure on old systems (#4124)
  • Add STATE_V2_TEST room version (#4128)
  • Clean up event accesses and tests (#4137)
  • The default logging config will now set an explicit log file encoding of UTF-8. (#4138)
  • Add helpers functions for getting prev and auth events of an event (#4139)
  • Add some tests for the HTTP pusher. (#4149)
  • add purge_history.sh and purge_remote_media.sh scripts to contrib/ (#4155)
  • HTTP tests have been refactored to contain less boilerplate. (#4156)
  • Drop incoming events from federation for unknown rooms (#4165)

Synapse v0.33.8 is here!

Wowzers – our 8th dot release for v0.33!

This time we have a bunch of bug fixes and db performance improvements as well as better support for auto-join rooms and the ability for admins to limit who can create rooms aliases.

v0.33.8 also contains more python 3 fixes: we are running most of matrix.org on python 3 as of right now and seeing some pretty impressive performance improvements. Look out for Hawkowl’s write up coming soon.

For those interested in what we are working on right now, take a look at our task board.

As ever, you can get the new update here or any of the sources mentioned at https://github.com/matrix-org/synapse. Note, Synapse is now available from PyPI, pick it up here.

 

Synapse 0.33.8 changelog

Features

  • Servers with auto-join rooms will now automatically create those rooms when the first user registers (#3975)
  • Add config option to control alias creation (#4051)
  • The register_new_matrix_user script is now ported to Python 3. (#4085)
  • Configure Docker image to listen on both ipv4 and ipv6. (#4089)

Bugfixes

  • Fix HTTP error response codes for federated group requests. (#3969)
  • Fix issue where Python 3 users couldn’t paginate /publicRooms (#4046)
  • Fix URL previewing to work in Python 3.7 (#4050)
  • synctl will use the right python executable to run worker processes (#4057)
  • Manhole now works again on Python 3, instead of failing with a “couldn’t match all kex parts” when connecting. (#4060#4067)
  • Fix some metrics being racy and causing exceptions when polled by Prometheus. (#4061)
  • Fix bug which prevented email notifications from being sent unless an absolute path was given for email_templates. (#4068)
  • Correctly account for cpu usage by background threads (#4074)
  • Fix race condition where config defined reserved users were not being added to
    the monthly active user list prior to the homeserver reactor firing up (#4081)
  • Fix bug which prevented backslashes being used in event field filters (#4083)

Internal Changes

  • Add information about the matrix-docker-ansible-deploy playbook (#3698)
  • Add initial implementation of new state resolution algorithm (#3786)
  • Reduce database load when fetching state groups (#4011)
  • Various cleanups in the federation client code (#4031)
  • Run the CircleCI builds in docker containers (#4041)
  • Only colourise synctl output when attached to tty (#4049)
  • Refactor room alias creation code (#4063)
  • Make the Python scripts in the top-level scripts folders meet pep8 and pass flake8. (#4068)
  • The README now contains example for the Caddy web server. Contributed by steamp0rt. (#4072)
  • Add psutil as an explicit dependency (#4073)
  • Clean up threading and logcontexts in pushers (#4075)
  • Correctly manage logcontexts during startup to fix some “Unexpected logging context” warnings (#4076)
  • Give some more things logcontexts (#4077)
  • Clean up some bits of code which were flagged by the linter (#4082)

Modular: the world’s first Matrix homeserver hosting provider!

Hi folks,

Today is one of those pivotal days for the Matrix ecosystem: we’re incredibly excited to announce that the world’s first ever dedicated homeserver hosting service is now fully available over at https://modular.im!  This really is a massive step for Matrix towards being a mature ecosystem, and we look forward to Modular being the first of many hosting providers in the years to come :D

Modular lets anyone spin up a dedicated homeserver and Riot via a super-simple web interface, rather than having to run and admin their own server.  It’s built by New Vector (the startup who makes Riot and hires many of the Matrix core team), and comes from taking the various custom homeserver deployments for people like Status and TADHack and turning them into a paid service available to everyone.  You can even point your own DNS at it to get a fully branded dedicated homeserver for your own domain!

Anyway, for full details, check out the announcement over at the Riot blog.  We’re particularly excited that Modular helps increase Matrix’s decentralisation, and is really forcing us to ensure that the Federation API is getting the attention it deserves.  Hopefully it’ll also reduce some load from the Matrix.org homeserver! Modular will also help Matrix by directly funding Matrix development by the folks working at New Vector, which should in turn of course benefit the whole ecosystem.

Many people reading this likely already run their own servers, and obviously they aren’t the target audience for Modular.  But for organisations who don’t have a sysadmin or don’t want to spend the time to run their own server, hopefully Modular gives a very cost-effective way of running your own dedicated reliable Matrix server without having to pay for a sysadmin :)

We’re looking forward to see more of these kind of services popping up in the future from everywhere in the ecosystem, and have started a Matrix Hosting page on the Matrix website so that everyone can advertise their own: don’t hesitate to get in touch if you have a service to be featured!

If you’re interested, please swing by #modular:matrix.org or feel free to shoot questions to supp[email protected].

Synapse 0.33.7 released!

Hey ho, let’s go. Synapse 0.33.7 has arrived.

Regular readers will know how close we are to a full python 3 release. We are not quite there yet but 0.33.7 has support for Synapse under worker mode and we’ve running it on matrix.org this week. We need more time to conclusively gauge performance improvements but the Synchrotron workers are running with 33% less RAM. Thanks to everyone who has been running their servers under py3, if you do spot anything unusual just let us know. Once we’ve been running it a bit longer on matrix.org, we’ll cut a 0.34.0 release with a recommendation that one and all upgrade to python 3.

Aside from that this release contains support for server side end to end key backups, paving the way for client side support in Riot and Rich continues his long running federation bug squash-a-thon which should help with a whole host of federation snafus.

Up next on the horizon is returning in earnest to getting the server to server r0 spec out starting with shipping our brand new super shiny state resolution algorithm.

As a final point, for those of you that deploy from git checkout or a snapshot url and have email notifications enabled please take a look warning in the change log.

As a final final point #synapse:matrix.org is now an officially supported room, aimed at Synapse admins. If you’ve not done so already please do drop by and say Hi.

As ever, you can get the new update here or any of the sources mentioned at https://github.com/matrix-org/synapse. Note, Synapse is now available from PyPI, pick it up here.

Onwards!

Synapse 0.33.7 Change Log

Warning: This release removes the example email notification templates from res/templates (they are now internal to the python package). This should only affect you if you (a) deploy your Synapse instance from a git checkout or a github snapshot URL, and (b) have email notifications enabled.

If you have email notifications enabled, you should ensure that email.template_dir is either configured to point at a directory where you have installed customised templates, or leave it unset to use the default templates.

The configuration parser will try to detect the situation where email.template_dir is incorrectly set to res/templates and do the right thing, but will warn about this.

Features

  • Ship the example email templates as part of the package (#4052)
  • Add support for end-to-end key backup (MSC1687) (#4019)

Bugfixes

  • Fix bug which made get_missing_events return too few events (#4045)
  • Fix bug in event persistence logic which caused ‘NoneType is not iterable’ (#3995)
  • Fix exception in background metrics collection (#3996)
  • Fix exception handling in fetching remote profiles (#3997)
  • Fix handling of rejected threepid invites (#3999)
  • Workers now start on Python 3. (#4027)
  • Synapse now starts on Python 3.7. (#4033)

Internal Changes

  • Log exceptions in looping calls (#4008)
  • Optimisation for serving federation requests (#4017)
  • Add metric to count number of non-empty sync responses (#4022)

Synapse 0.33.6 released!

Right folks, time for Synapse 0.33.6.

These past few weeks we’ve been focusing on fixing a whole host of federation bugs to improve reliability and latency. Additionally we’ve squashed some py3 bugs, improved lazy loading and been working hard in the background to improve our CI infrastructure. Finally, we cleaned up the Docker file, the image is now half the size of 0.33.5.1’s standing at 58 MB.

As ever, you can get the new update here or any of the sources mentioned at https://github.com/matrix-org/synapse. Note, Synapse is now available from PyPI, pick it up here.

 

Synapse 0.33.6

Features

  • Adding the ability to change MAX_UPLOAD_SIZE for the docker container variables. (#3883)
  • Report “python_version” in the phone home stats (#3894)
  • Always LL ourselves if we’re in a room (#3916)
  • Include eventid in log lines when processing incoming federation transactions (#3959)
  • Remove spurious check which made ‘localhost’ servers not work (#3964)

Bugfixes

  • Fix problem when playing media from Chrome using direct URL (thanks @remjey!) (#3578)
  • support registering regular users non-interactively with register_new_matrix_user script (#3836)
  • Fix broken invite email links for self hosted riots (#3868)
  • Don’t ratelimit autojoins (#3879)
  • Fix 500 error when deleting unknown room alias (#3889)
  • Fix some b’abcd’ noise in logs and metrics (#3892#3895)
  • When we join a room, always try the server we used for the alias lookup first, to avoid unresponsive and out-of-date servers. (#3899)
  • Fix incorrect server-name indication for outgoing federation requests (#3907)
  • Fix adding client IPs to the database failing on Python 3. (#3908)
  • Fix bug where things occaisonally were not being timed out correctly. (#3910)
  • Fix bug where outbound federation would stop talking to some servers when using workers (#3914)
  • Fix some instances of ExpiringCache not expiring cache items (#3932#3980)
  • Fix out-of-bounds error when LLing yourself (#3936)
  • Sending server notices regarding user consent now works on Python 3. (#3938)
  • Fix exceptions from metrics handler (#3956)
  • Fix error message for events with m.room.create missing from auth_events (#3960)
  • Fix errors due to concurrent monthly_active_user upserts (#3961)
  • Fix exceptions when processing incoming events over federation (#3968)
  • Replaced all occurences of e.message with str(e). Contributed by Schnuffle (#3970)
  • Fix lazy loaded sync in the presence of rejected state events (#3986)
  • Fix error when logging incomplete HTTP requests (#3990)

Internal Changes

  • Unit tests can now be run under PostgreSQL in Docker using test_postgresql.sh. (#3699)
  • Speed up calculation of typing updates for replication (#3794)
  • Remove documentation regarding installation on Cygwin, the use of WSL is recommended instead. (#3873)
  • Fix typo in README, synaspse -> synapse (#3897)
  • Increase the timeout when filling missing events in federation requests (#3903)
  • Improve the logging when handling a federation transaction (#3904#3966)
  • Improve logging of outbound federation requests (#3906#3909)
  • Fix the docker image building on python 3 (#3911)
  • Add a regression test for logging failed HTTP requests on Python 3. (#3912)
  • Comments and interface cleanup for on_receive_pdu (#3924)
  • Fix spurious exceptions when remote http client closes conncetion (#3925)
  • Log exceptions thrown by background tasks (#3927)
  • Add a cache to get_destination_retry_timings (#3933#3991)
  • Automate pushes to docker hub (#3946)
  • Require attrs 16.0.0 or later (#3947)
  • Fix incompatibility with python3 on alpine (#3948)
  • Run the test suite on the oldest supported versions of our dependencies in CI. (#3952)
  • CircleCI now only runs merged jobs on PRs, and commit jobs on develop, master, and release branches. (#3957)
  • Fix docstrings and add tests for state store methods (#3958)
  • fix docstring for FederationClient.get_state_for_room (#3963)
  • Run notify_app_services as a bg process (#3965)
  • Clarifications in FederationHandler (#3967)
  • Further reduce the docker image size (#3972)
  • Build py3 docker images for docker hub too (#3976)
  • Updated the installation instructions to point to the matrix-synapse package on PyPI. (#3985)
  • Disable USE_FROZEN_DICTS for unittests by default. (#3987)
  • Remove unused Jenkins and development related files from the repo. (#3988)
  • Improve stacktraces in certain exceptions in the logs (#3989)
  • Pin to prometheus_client<0.4 to avoid renaming all of our metrics (#4002)

Synapse 0.33.5.1 released!

Folks, Synapse 0.33.5.1 is here.

0.33.5.1 is an interesting release. On the one hand it contains the usual bug fixes and performance improvements of a point release, but it also our first versioned release where monolith installs can be run under Python 3.5 and 3.6! Python 3 support is very much in beta, so please be cautious but if you would like to try running under a py3 environment we’d love to get your feedback.

We’ve been running it ourselves for the past few weeks, and feel pretty good about it, not least the 2-3x improvement in RAM usage.

Currently the only way to run under python 3 is to download via github, there is no deb support as yet, though this will come as soon as we are confident to recommend python 3 as the default version.

We’ll be blogging about our porting project in more detail in the future, so watch this space – exciting times!

As ever, you can get the new update here or any of the sources mentioned at https://github.com/matrix-org/synapse. Note, for the first time, Synapse is now available from PyPI, pick it up here.

Synapse 0.33.5.1

 

Internal Changes

  • Fix incompatibility with older Twisted version in tests. Thanks @OlegGirko! (#3940)

Synapse 0.33.5

 

Features

  • Python 3.5 and 3.6 support is now in beta. (#3576)
  • Implement event_format filter param in /sync (#3790)
  • Add synapse_admin_mau:registered_reserved_users metric to expose number of real reaserved users (#3846)

Bugfixes

  • Remove connection ID for replication prometheus metrics, as it creates a large number of new series. (#3788)
  • guest users should not be part of mau total (#3800)
  • Bump dependency on pyopenssl 16.x, to avoid incompatibility with recent Twisted. (#3804)
  • Fix existing room tags not coming down sync when joining a room (#3810)
  • Fix jwt import check (#3824)
  • fix VOIP crashes under Python 3 (#3821) (#3835)
  • Fix manhole so that it works with latest openssh clients (#3841)
  • Fix outbound requests occasionally wedging, which can result in federation breaking between servers. (#3845)
  • Show heroes if room name/canonical alias has been deleted (#3851)
  • Fix handling of redacted events from federation (#3859)
  • (#3874)
  • Mitigate outbound federation randomly becoming wedged (#3875)

Internal Changes

  • CircleCI tests now run on the potential merge of a PR. (#3704)
  • http/ is now ported to Python 3. (#3771)
  • Improve human readable error messages for threepid registration/account update (#3789)
  • Make /sync slightly faster by avoiding needless copies (#3795)
  • handlers/ is now ported to Python 3. (#3803)
  • Limit the number of PDUs/EDUs per federation transaction (#3805)
  • Only start postgres instance for postgres tests on Travis CI (#3806)
  • tests/ is now ported to Python 3. (#3808)
  • crypto/ is now ported to Python 3. (#3822)
  • rest/ is now ported to Python 3. (#3823)
  • add some logging for the keyring queue (#3826)
  • speed up lazy loading by 2-3x (#3827)
  • Improved Dockerfile to remove build requirements after building reducing the image size. (#3834)
  • Disable lazy loading for incremental syncs for now (#3840)
  • federation/ is now ported to Python 3. (#3847)
  • Log when we retry outbound requests (#3853)
  • Removed some excess logging messages. (#3855)
  • Speed up purge history for rooms that have been previously purged (#3856)
  • Refactor some HTTP timeout code. (#3857)
  • Fix running merged builds on CircleCI (#3858)
  • Fix typo in replication stream exception. (#3860)
  • Add in flight real time metrics for Measure blocks (#3871)
  • Disable buffering and automatic retrying in treq requests to prevent timeouts. (#3872)
  • mention jemalloc in the README (#3877)
  • Remove unmaintained “nuke-room-from-db.sh” script (#3888)