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Add basic opentracing support #5544
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Includes config options for the tracer and sets up JaegerClient.
We piggy-back our tracer scopes by using log context. The current log context gives us the current scope. If new scope is created we create a stack of scopes in the context.
The span is created in _started_processing and closed in _finished_processing because we need a meaningful log context.
Instead of having a stack of scopes in a logcontext we create a new context for a new scope if the current logcontext already has a scope.
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Needed to get black commit because otherwise black was trying to alter 290ish files.
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Codecov Report
@@ Coverage Diff @@
## develop #5544 +/- ##
===========================================
- Coverage 63.25% 63.19% -0.07%
===========================================
Files 328 331 +3
Lines 35854 36046 +192
Branches 5911 5934 +23
===========================================
+ Hits 22681 22778 +97
- Misses 11548 11637 +89
- Partials 1625 1631 +6 |
ara4n
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ara4n
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ara4n
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v1.2.0rc1 Features -------- - Add support for opentracing. ([\#5544](#5544), [\#5712](#5712)) - Add ability to pull all locally stored events out of synapse that a particular user can see. ([\#5589](#5589)) - Add a basic admin command app to allow server operators to run Synapse admin commands separately from the main production instance. ([\#5597](#5597)) - Add `sender` and `origin_server_ts` fields to `m.replace`. ([\#5613](#5613)) - Add default push rule to ignore reactions. ([\#5623](#5623)) - Include the original event when asking for its relations. ([\#5626](#5626)) - Implement `session_lifetime` configuration option, after which access tokens will expire. ([\#5660](#5660)) - Return "This account has been deactivated" when a deactivated user tries to login. ([\#5674](#5674)) - Enable aggregations support by default ([\#5714](#5714)) Bugfixes -------- - Fix 'utime went backwards' errors on daemonization. ([\#5609](#5609)) - Various minor fixes to the federation request rate limiter. ([\#5621](#5621)) - Forbid viewing relations on an event once it has been redacted. ([\#5629](#5629)) - Fix requests to the `/store_invite` endpoint of identity servers being sent in the wrong format. ([\#5638](#5638)) - Fix newly-registered users not being able to lookup their own profile without joining a room. ([\#5644](#5644)) - Fix bug in #5626 that prevented the original_event field from actually having the contents of the original event in a call to `/relations`. ([\#5654](#5654)) - Fix 3PID bind requests being sent to identity servers as `application/x-form-www-urlencoded` data, which is deprecated. ([\#5658](#5658)) - Fix some problems with authenticating redactions in recent room versions. ([\#5699](#5699), [\#5700](#5700), [\#5707](#5707)) - Ignore redactions of m.room.create events. ([\#5701](#5701)) Updates to the Docker image --------------------------- - Base Docker image on a newer Alpine Linux version (3.8 -> 3.10). ([\#5619](#5619)) - Add missing space in default logging file format generated by the Docker image. ([\#5620](#5620)) Improved Documentation ---------------------- - Add information about nginx normalisation to reverse_proxy.rst. Contributed by @skalarproduktraum - thanks! ([\#5397](#5397)) - --no-pep517 should be --no-use-pep517 in the documentation to setup the development environment. ([\#5651](#5651)) - Improvements to Postgres setup instructions. Contributed by @Lrizika - thanks! ([\#5661](#5661)) - Minor tweaks to postgres documentation. ([\#5675](#5675)) Deprecations and Removals ------------------------- - Remove support for the `invite_3pid_guest` configuration setting. ([\#5625](#5625)) Internal Changes ---------------- - Move logging code out of `synapse.util` and into `synapse.logging`. ([\#5606](#5606), [\#5617](#5617)) - Add a blacklist file to the repo to blacklist certain sytests from failing CI. ([\#5611](#5611)) - Make runtime errors surrounding password reset emails much clearer. ([\#5616](#5616)) - Remove dead code for persiting outgoing federation transactions. ([\#5622](#5622)) - Add `lint.sh` to the scripts-dev folder which will run all linting steps required by CI. ([\#5627](#5627)) - Move RegistrationHandler.get_or_create_user to test code. ([\#5628](#5628)) - Add some more common python virtual-environment paths to the black exclusion list. ([\#5630](#5630)) - Some counter metrics exposed over Prometheus have been renamed, with the old names preserved for backwards compatibility and deprecated. See `docs/metrics-howto.rst` for details. ([\#5636](#5636)) - Unblacklist some user_directory sytests. ([\#5637](#5637)) - Factor out some redundant code in the login implementation. ([\#5639](#5639)) - Update ModuleApi to avoid register(generate_token=True). ([\#5640](#5640)) - Remove access-token support from `RegistrationHandler.register`, and rename it. ([\#5641](#5641)) - Remove access-token support from `RegistrationStore.register`, and rename it. ([\#5642](#5642)) - Improve logging for auto-join when a new user is created. ([\#5643](#5643)) - Remove unused and unnecessary check for FederationDeniedError in _exception_to_failure. ([\#5645](#5645)) - Fix a small typo in a code comment. ([\#5655](#5655)) - Clean up exception handling around client access tokens. ([\#5656](#5656)) - Add a mechanism for per-test homeserver configuration in the unit tests. ([\#5657](#5657)) - Inline issue_access_token. ([\#5659](#5659)) - Update the sytest BuildKite configuration to checkout Synapse in `/src`. ([\#5664](#5664)) - Add a `docker` type to the towncrier configuration. ([\#5673](#5673)) - Convert `synapse.federation.transport.server` to `async`. Might improve some stack traces. ([\#5689](#5689)) - Documentation for opentracing. ([\#5703](#5703))
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I've set up opentracing for synapse. The configuration options as they stand ignore the whitelists. This is coming later. Jaeger comes with a bunch of config options but I assume we don't want to expose them.
I've written a custom scope manager which keeps a track of the currently active span in opentracing. This scope manager ties in with logcontexts where we generally create a new logcontext for each new scope. There is an exception to this when the current log context has no scope. In this case the scope is simply attached to the context and detached again on close. Otherwise the lifetime of a scope and it's logcontext are exactly the same. (This goes against what we discussed @erikjohnston but opening a new context with the scope in site.py (line 239) causes the logcontext to be dropped prematurely. If anyone sees a nicer way shout.)