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Refactor request sending to have better excpetions #4358
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MatrixFederationHttpClient blindly reraised exceptions to the caller without differentiating "expected" failures (e.g. connection timeouts etc) versus more severe problems (e.g. programming errors). This commit adds a RequestSendFailed exception that is raised when "expected" failures happen, allowing the TransactionQueue to log them as warnings while allowing us to log other exceptions as actual exceptions.
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@@ Coverage Diff @@
## develop #4358 +/- ##
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- Coverage 73.7% 73.68% -0.02%
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Files 300 300
Lines 29789 29813 +24
Branches 4889 4894 +5
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+ Hits 21955 21969 +14
- Misses 6399 6406 +7
- Partials 1435 1438 +3
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richvdh
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Jan 8, 2019
Synapse 0.34.1rc1 (2019-01-08) ============================== Features -------- - Special-case a support user for use in verifying behaviour of a given server. The support user does not appear in user directory or monthly active user counts. ([\#4141](#4141), [\#4344](#4344)) - Support for serving .well-known files ([\#4262](#4262)) - Rework SAML2 authentication ([\#4265](#4265), [\#4267](#4267)) - SAML2 authentication: Initialise user display name from SAML2 data ([\#4272](#4272)) - Synapse can now have its conditional/extra dependencies installed by pip. This functionality can be used by using `pip install matrix-synapse[feature]`, where feature is a comma separated list with the possible values `email.enable_notifs`, `matrix-synapse-ldap3`, `postgres`, `resources.consent`, `saml2`, `url_preview`, and `test`. If you want to install all optional dependencies, you can use "all" instead. ([\#4298](#4298), [\#4325](#4325), [\#4327](#4327)) - Add routes for reading account data. ([\#4303](#4303)) - Add opt-in support for v2 rooms ([\#4307](#4307)) - Add a script to generate a clean config file ([\#4315](#4315)) - Return server data in /login response ([\#4319](#4319)) Bugfixes -------- - Fix contains_url check to be consistent with other instances in code-base and check that value is an instance of string. ([\#3405](#3405)) - Fix CAS login when username is not valid in an MXID ([\#4264](#4264)) - Send CORS headers for /media/config ([\#4279](#4279)) - Add 'sandbox' to CSP for media reprository ([\#4284](#4284)) - Make the new landing page prettier. ([\#4294](#4294)) - Fix deleting E2E room keys when using old SQLite versions. ([\#4295](#4295)) - The metric synapse_admin_mau:current previously did not update when config.mau_stats_only was set to True ([\#4305](#4305)) - Fixed per-room account data filters ([\#4309](#4309)) - Fix indentation in default config ([\#4313](#4313)) - Fix synapse:latest docker upload ([\#4316](#4316)) - Fix test_metric.py compatibility with prometheus_client 0.5. Contributed by Maarten de Vries <maarten@de-vri.es>. ([\#4317](#4317)) - Avoid packaging _trial_temp directory in -py3 debian packages ([\#4326](#4326)) - Check jinja version for consent resource ([\#4327](#4327)) - fix NPE in /messages by checking if all events were filtered out ([\#4330](#4330)) - Fix `python -m synapse.config` on Python 3. ([\#4356](#4356)) Deprecations and Removals ------------------------- - Remove the deprecated v1/register API on Python 2. It was never ported to Python 3. ([\#4334](#4334)) Internal Changes ---------------- - Getting URL previews of IP addresses no longer fails on Python 3. ([\#4215](#4215)) - drop undocumented dependency on dateutil ([\#4266](#4266)) - Update the example systemd config to use a virtualenv ([\#4273](#4273)) - Update link to kernel DCO guide ([\#4274](#4274)) - Make isort tox check print diff when it fails ([\#4283](#4283)) - Log room_id in Unknown room errors ([\#4297](#4297)) - Documentation improvements for coturn setup. Contributed by Krithin Sitaram. ([\#4333](#4333)) - Update pull request template to use absolute links ([\#4341](#4341)) - Update README to not lie about required restart when updating TLS certificates ([\#4343](#4343)) - Update debian packaging for compatibility with transitional package ([\#4349](#4349)) - Fix command hint to generate a config file when trying to start without a config file ([\#4353](#4353)) - Add better logging for unexpected errors while sending transactions ([\#4358](#4358))
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MatrixFederationHttpClient blindly reraised exceptions to the caller
without differentiating "expected" failures (e.g. connection timeouts
etc) versus more severe problems (e.g. programming errors).
This commit adds a RequestSendFailed exception that is raised when
"expected" failures happen, allowing the TransactionQueue to log them as
warnings while allowing us to log other exceptions as actual exceptions.
This should help with #4239, as we can now differentiate between "expected" errors and unexpected ARGH LOG THE WORLD errors