Preparation for switching away from `grpc_channel_filter*` to identify channel filters.
Closes#36907
COPYBARA_INTEGRATE_REVIEW=https://github.com/grpc/grpc/pull/36907 from ctiller:type-name e7ad4c67a2
PiperOrigin-RevId: 644483948
Make `Arena` be a refcounted object.
Solves a bunch of issues: our stack right now needs a very complicated dance between transport and surface to destroy a call, but with this scheme we can just hold a ref to what we need in each place and everything works out.
Removes some `ifdef`'d out code that had been sitting dormant for a year or two also -- I'd left it in as a hedge against it being maybe a bad idea, but it looks like it's not needed.
Closes#36758
COPYBARA_INTEGRATE_REVIEW=https://github.com/grpc/grpc/pull/36758 from ctiller:arena-counting d1b672fe30
PiperOrigin-RevId: 638767768
[grpc][Gpr_To_Absl_Logging] Migrating from gpr to absl logging - gpr_log
In this CL we are migrating from gRPCs own gpr logging mechanism to absl logging mechanism. The intention is to deprecate gpr_log in the future.
We have the following mapping
1. gpr_log(GPR_INFO,...) -> LOG(INFO)
2. gpr_log(GPR_ERROR,...) -> LOG(ERROR)
3. gpr_log(GPR_DEBUG,...) -> VLOG(2)
Reviewers need to check :
1. If the above mapping is correct.
2. The content of the log is as before.
gpr_log format strings did not use string_view or std::string . absl LOG accepts these. So there will be some elimination of string_view and std::string related conversions. This is expected.
Closes#36577
COPYBARA_INTEGRATE_REVIEW=https://github.com/grpc/grpc/pull/36577 from tanvi-jagtap:test_core_all 9887d74d81
PiperOrigin-RevId: 632441576
This adds compile-time checking that the type of the value and the size of the labels and optional labels passed when recording a metric must match with the type and the size specified when the metric is registered.
The RegistrationBuilder API idea is credited to @ctiller.
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Closes#36449
COPYBARA_INTEGRATE_REVIEW=https://github.com/grpc/grpc/pull/36449 from yijiem:registration-builder-api a727810136
PiperOrigin-RevId: 632271022
Also begin to eliminate `CallContext` in favor of just exposing `Call` - ultimately there's not really a need to introduce two types here, so I'm going to wind that idea back over a few PRs.
I've avoided making this an experiment as the changes required were quite structural.
Closes#36477
COPYBARA_INTEGRATE_REVIEW=https://github.com/grpc/grpc/pull/36477 from ctiller:deadline-time 9856eeebe6
PiperOrigin-RevId: 629599230
[grpc][Gpr_To_Absl_Logging] Migrating from gpr to absl logging GPR_ASSERT
Replacing GPR_ASSERT with absl CHECK.
These changes have been made using string replacement and regex.
Will not be replacing all instances of CHECK with CHECK_EQ , CHECK_NE etc because there are too many callsites. Only ones which are doable using very simple regex with least chance of failure will be replaced.
Given that we have 5000+ instances of GPR_ASSERT to edit, Doing it manually is too much work for both the author and reviewer.
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Closes#36457
COPYBARA_INTEGRATE_REVIEW=https://github.com/grpc/grpc/pull/36457 from tanvi-jagtap:tjagtap_misc_test 978d0411b8
PiperOrigin-RevId: 628949744
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Closes#36396
COPYBARA_INTEGRATE_REVIEW=https://github.com/grpc/grpc/pull/36396 from yijiem:xds-cluster-end2end-test-twin 26062ea1b4
PiperOrigin-RevId: 626207011
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Closes#36334
COPYBARA_INTEGRATE_REVIEW=https://github.com/grpc/grpc/pull/36334 from yijiem:grpc-metrics-better-compile-time-enforcement 2ae15acfeb
PiperOrigin-RevId: 623909848
Also addressing a TODO from previous PRs where `authority` is not being populated in the `ChannelScope`.
Closes#36189
COPYBARA_INTEGRATE_REVIEW=https://github.com/grpc/grpc/pull/36189 from yashykt:OTelChannelScope e76f9ce0ca
PiperOrigin-RevId: 621231764
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Closes#35871
COPYBARA_INTEGRATE_REVIEW=https://github.com/grpc/grpc/pull/35871 from yijiem:grpc-metrics 86ebe484ae
PiperOrigin-RevId: 609533796
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Closes#35210
COPYBARA_INTEGRATE_REVIEW=https://github.com/grpc/grpc/pull/35210 from yijiem:csm-service-label 6a6a7d1774
PiperOrigin-RevId: 597641393
Will be used during this transition time to run 5-pipe style filters somewhat more natively. Once everything is getting closer to 5-pipes, we'll drop this method and have the channel stack understand how to create an interception-map that can be reused per-call, instead of creating the interception-map every time a call is created.
Closes#35200
COPYBARA_INTEGRATE_REVIEW=https://github.com/grpc/grpc/pull/35200 from ctiller:cg-channel-filter-api 2fc11dd273
PiperOrigin-RevId: 587940947
Add TcpTracer interface for TCP instrumentation. It takes no gRPC
dependencies for use in external TCP implementations. Also add
HttpAnnotation for HTTP transport instrumentation using CallTracer.
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Ditch the old priority scheme for ordering filters, instead explicitly
mark up before/after constraints.
---------
Co-authored-by: ctiller <ctiller@users.noreply.github.com>
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This PR adds in delegating call tracers that work like so -
If this is the first call tracer that is being added onto the call
context, just add it as earlier.
If this is the second call tracer that is being added onto the call
context, create a delegating call tracer that contains a list of call
tracers (including the first call tracer).
Any more call tracers added, just get added to the list of tracers in
the delegating call tracer.
(This is not yet used other than through tests.)
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Why: Cleanup for chttp2_transport ahead of promise conversion - lots of
logic has become interleaved throughout chttp2, so some effort to
isolate logic out is warranted ahead of that conversion.
What: Split configuration and policy tracking for each of ping rate
throttling and abuse detection into their own modules. Add tests for
them.
Incidentally: Split channel args into their own header so that we can
split the policy stuff into separate build targets.
---------
Co-authored-by: ctiller <ctiller@users.noreply.github.com>
The address attribute interface was intended to provide a mechanism to
pass attributes separately from channel args, for values that do not
affect subchannel behavior and therefore do not need to be present in
the subchannel key, which does include channel args. However, the
mechanism as currently designed is fairly clunky and is probably not the
direction we will want to go in the long term.
Eventually, we will want some mechanism for registering channel args,
which would provide a cleaner way to indicate that a given channel arg
should not be used in the subchannel key, so that we don't need a
completely different mechanism. For now, this PR is just doing an
interim step, which is to establish a special channel arg key prefix to
indicate that an arg is not needed in the subchannel key.
This makes the JSON API visible as part of the C-core API, but in the
`experimental` namespace. It will be used as part of various
experimental APIs that we will be introducing in the near future, such
as the audit logging API.
Whilst the per cpu counters probably help single channel contention, we
think it's likely that they're a pessimization when taken fleetwide.
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This change mostly aims to get OpenCensus to use the new
ServerCallTracer interface. Note that the interfaces nor the code are in
their final states. There are a bunch of moving pieces, but I thought
this might be a nice mid-step to check-in and make sure that our
internal traces can also work with these changes.
Overall changes -
1) call_tracer.h shows what the hierarchy of new call tracer interfaces
looks like. Open to renaming suggestions.
2) Moved most of the common interface between `CallAttemptTracer` and
`ServerCallTracer` into a common `CallTracerInterface`. We should be
able to eventually move `RecordReceivedTrailingMetadata` and `RecordEnd`
as well to these common interfaces, but it requires some additional
work.
3) The compression filter is now responsible for recording the recv and
send messages for both the subchannel call and the server, and adds in
ability to record compressed and decompressed messages as well.
4) The OpenCensus server filter now uses the new `ServerCallTracer`
interface, and so doesn't need to be a filter anymore.
5) A new ServerCallTracerFilter was added. Ideally, we should be able to
move it to the current connected filter, but it is in a bit of an
interesting state right now, so I would prefer making those changes in a
separate PR with Craig's eyes on it.
6) A new context element `GRPC_CONTEXT_CALL_TRACER_ANNOTATION_INTERFACE`
was created that replaces the old `GRPC_CONTEXT_CALL_TRACER`, and the
new `GRPC_CONTEXT_CALL_TRACER` is mainly to pass the `CallAttemptTracer`
down the stack. This should go away in the new promise-based world.
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* [channel_args] Use c++ channel args during channel init
Previously we were converting to C and then back to C++ for each
filter... this ought to save some CPU time during connection
establishment.
* Automated change: Fix sanity tests
* cpp channel filters
* Automated change: Fix sanity tests
* iwyu
---------
Co-authored-by: ctiller <ctiller@users.noreply.github.com>
Craig Tiller
Mark D. Roth
Tanvi Jagtap
Yijie Ma
AJ Heller
Yash Tibrewal
Yousuk Seung
