This change adds an experiment to move time caching from `ExecCtx` (which is the wrong place for this mechanism) and moves it to the party update path (the expectation being that a single poll of a call is the granularity at which we expect time caching to be a useful optimization, whilst avoiding the unbounded hold times associated with the current mechanism).
This requires fixing up a few tests that grew to depend on time caching (would appreciate close eyes on the credentials test, as it's unclear to me why this is required or what the effect is).
This should also fix b/232544809.
Closes#37637
COPYBARA_INTEGRATE_REVIEW=https://github.com/grpc/grpc/pull/37637 from ctiller:closer-to-the-sun 8bbde2d0bd
PiperOrigin-RevId: 672574762
Fix some flakiness caused by fixing jitter in the backoff library in #37595.
In the xDS retry tests, the additional jitter made it such that an extra attempt snuck in before the call deadline, so I adjusted the knobs to ensure that exactly the expected number of attempts fit into the tests.
In the PF test, I rewrote the test to use a connection injector, so that it can more accurately tell the time between the connection attempts, without seeing skew due to the server startup time.
Closes#37629
COPYBARA_INTEGRATE_REVIEW=https://github.com/grpc/grpc/pull/37629 from markdroth:xds_retry_backoff_flake_fix f35ac902a0
PiperOrigin-RevId: 671120341
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Closes#37632
COPYBARA_INTEGRATE_REVIEW=https://github.com/grpc/grpc/pull/37632 from yijiem:alts-concurrent-connectivity-test-flake 68df4b1327
PiperOrigin-RevId: 671117730
Looks like there are some odd interactions, but call-v3 doesn't (and will never) handle wakeup sets, so disable for now until iomgr is removed.
Closes#37630
COPYBARA_INTEGRATE_REVIEW=https://github.com/grpc/grpc/pull/37630 from ctiller:cgg 7c37893667
PiperOrigin-RevId: 671104484
Fallback interop test is fully deployed. This variable is no longer needed.
Closes#37620
COPYBARA_INTEGRATE_REVIEW=https://github.com/grpc/grpc/pull/37620 from eugeneo:no-fallback-var c21509d0a5
PiperOrigin-RevId: 670738146
Final piece of gRFC A83 (https://github.com/grpc/proposal/pull/438): the GCP authentication filter itself.
Infrastructure changes include:
- Added a general-purpose LRU cache library that can be reused elsewhere.
- Fixed the client channel code to use the channel args returned by the resolver for the dynamic filters. This was necessary so that the GCP auth filter could access the `XdsConfig` object, which is passed via a channel arg.
- Unlike the other xDS HTTP filters we support, the GCP auth filter does not support config overrides, and its configuration includes a cache size parameter that we always need at the channel level, not per-call. As a result, I had to change the xDS HTTP filter API to give it the ability to set top-level fields in the service config, not just per-method fields. (We use the service config as a way of passing configuration down into xDS HTTP filters.) Note that for now, this works only on the client side, because we don't have machinery for a top-level service config on the server side.
- The GCP auth filter is also the first case where the filter needs to know its instance name from the xDS config, so I changed the xDS HTTP filter API to plumb that through.
- Fixed a bug in the HTTP client library that prevented the override functions from declining to override a particular request.
Closes#37550
COPYBARA_INTEGRATE_REVIEW=https://github.com/grpc/grpc/pull/37550 from markdroth:xds_gcp_auth_filter 19eaefb52f
PiperOrigin-RevId: 669371249
Fixes a bug in the backoff implementation whereby we were incorrectly failing to apply jitter to the initial backoff.
Also change the API to return `Duration` instead of `Timestamp`. The only caller that actually wants to count the backoff from the start of the previous attempt instead of the end of the previous attempt is the subchannel code, and it handles that on its end.
Closes#37595
COPYBARA_INTEGRATE_REVIEW=https://github.com/grpc/grpc/pull/37595 from markdroth:backoff_fixes_and_api_improvement 39d083c0f4
PiperOrigin-RevId: 669112557
Add validation of the `Audience` cluster metadata type, as per gRFC A83 (https://github.com/grpc/proposal/pull/438).
I had previously changed the metadata to be represented as JSON in #37468. However, while working on the GCP Authentication filter implementation, I realized that that's not an ideal representation, because it would have required us to validate the JSON on a per-RPC basis, which would be bad for performance. So I've changed the representation of metadata to be an abstract type, and we now store the `Audience` metadata as a simple string. I've also moved metadata into its own type with its own validation code, so that in the future we can use it in places other than CDS (many xDS resource types have metadata fields).
While I was at it, I also add some helper functions for validating the `UInt32Value` and `UInt64Value` wrapper protos.
Closes#37566
PiperOrigin-RevId: 668281729
The first commit is a pure revert of the revert, and the second one has the fix.
Closes#37573
COPYBARA_INTEGRATE_REVIEW=https://github.com/grpc/grpc/pull/37573 from markdroth:call_creds_roll_forward 2476329534
PiperOrigin-RevId: 667672832
The changes in #37531 are causing test failures under run_tests.py (but not bazel), and #37544 was built on top of #37531, so both need to be reverted.
Closes#37567
COPYBARA_INTEGRATE_REVIEW=https://github.com/grpc/grpc/pull/37567 from markdroth:call_creds_revert d086e066f5
PiperOrigin-RevId: 666978406
This will fix timestamps on logs and show all `VLOG(2)` logs on tests by default.
Currently, timestamps on logs are shown as -
```
I0000 00:00:1724385276.681936 1894892 config.cc:262] gRPC experiments enabled: call_tracer_in_transport, event_engine_dns, event_engine_listener, monitoring_experiment, pick_first_new, trace_record_callops, work_serializer_clears_time_cache
```
After invoking `absl::InitializeLog()`, this gets fixed to -
```
I0823 03:55:53.993928 1895644 config.cc:262] gRPC experiments enabled: call_tracer_in_transport, event_engine_dns, event_engine_listener, monitoring_experiment, pick_first_new, trace_record_callops, work_serializer_clears_time_cache
```
Closes#37560
COPYBARA_INTEGRATE_REVIEW=https://github.com/grpc/grpc/pull/37560 from yashykt:ImproveLoggingForTests 66433336c8
PiperOrigin-RevId: 666956421
As per gRFC A83 (https://github.com/grpc/proposal/pull/438).
For now, I am not exposing this new call creds type via the C-core API or in any C++ or wrapped language public APIs, so there's no way to use it externally. We can easily add that in the future if someone asks, but for now the intent is to use it only internally via the xDS GCP authentication filter, which I'll implement in a subsequent PR.
As part of this, I changed the test framework in credentials_test to check the status code in addition to the message on failure. This exposed several places where existing credential types are returnign the wrong status code (unsurprisingly, because of all of the tech debt surrounding grpc_error). I have not fixed this behavior, but I have added TODOs in the test showing which ones I think need to be fixed.
Closes#37544
COPYBARA_INTEGRATE_REVIEW=https://github.com/grpc/grpc/pull/37544 from markdroth:gcp_service_account_identity_call_creds 97e0efc48d
PiperOrigin-RevId: 666869692
This adds functionality that is intended to be used for the new GcpServiceAccountIdentityCallCredentials implementation, as per gRFC A83 (https://github.com/grpc/proposal/pull/438). However, it is also a useful improvement for all token-fetching call credentials types, so I am adding it to the base class.
Closes#37531
COPYBARA_INTEGRATE_REVIEW=https://github.com/grpc/grpc/pull/37531 from markdroth:token_fetcher_call_creds_prefetch_and_backoff 0fcdb48465
PiperOrigin-RevId: 666809903
Previously, `grpc_oauth2_token_fetcher_credentials` provided functionality for on-demand token-fetching, but it was integrated into the oauth2 code, so it was not possible to use that same code for on-demand fetching of (e.g.) JWT tokens. This PR splits that class into two parts:
1. A base `TokenFetcherCredentials` class that provides a framework for on-demand fetching of any arbitrary type of auth token.
2. An `Oauth2TokenFetcherCredentials` subclass that derives from `TokenFetcherCredentials` and provides handling for oauth2 tokens.
The `grpc_compute_engine_token_fetcher_credentials`, `StsTokenFetcherCredentials`, and `grpc_google_refresh_token_credentials` classes that previously derived from `grpc_oauth2_token_fetcher_credentials` now derive from `Oauth2TokenFetcherCredentials` instead, so there's not much change to those classes (other than a cleaner interface with the base class functionality).
The `ExternalAccountCredentials` class and its subclasses got more extensive changes here. Previously, this class inheritted from `grpc_oauth2_token_fetcher_credentials` and fooled the base class into thinking that it directly fetched the oauth2 token, when in fact it actually performed a number of steps to gather data and then constructed a synthetic HTTP response to pass back to the base class. I have changed this to instead derive directly from `TokenFetcherCredentials` to provide a much cleaner interface with the parent class.
In addition, I have changed `grpc_call_credentials` from `RefCounted<>` to `DualRefCounted<>` to provide a clean way to shut down any in-flight token fetch when the credentials are unreffed.
This PR paves the way for subsequent work that will allow implementing an on-demand JWT token fetcher call credential, as part of gRFC A83 (https://github.com/grpc/proposal/pull/438).
Closes#37510
COPYBARA_INTEGRATE_REVIEW=https://github.com/grpc/grpc/pull/37510 from markdroth:token_fetcher_call_creds_refactor 3bd398a762
PiperOrigin-RevId: 666547985
Prior to this PR, the host and path were passed to the override functions, but the query params were unavailable to them. I have replaced the separate `host` and `path` parameters with a single parameter that passes the URI in as a const reference, which provides access to the query params.
While I was at it, I also changed the PUT and POST override methods to pass in the body as a string_view, which is more ergonomic for tests.
Closes#37540
COPYBARA_INTEGRATE_REVIEW=https://github.com/grpc/grpc/pull/37540 from markdroth:httpcli_override_uri 902b0d2097
PiperOrigin-RevId: 665950188
Extend Fuzzing timeouts to 1 year since the fuzzing EE caps delays passed to RunAfter to 1 year. This will prevent pre-mature timeouts of some legitimate fuzzed inputs.
Should fix b/358207194
PiperOrigin-RevId: 665012820
[Gpr_To_Absl_Logging] Remove gpr logging header include from other headers
Some of the cc files are using gpr_log_verbosity_init() functions.
So I removed the #include <grpc/support/log.h> from all headers and put it selectively only in the cc files that used gpr_log_verbosity_init()
Closes#37513
COPYBARA_INTEGRATE_REVIEW=https://github.com/grpc/grpc/pull/37513 from tanvi-jagtap:remove_gpr_headers_from_headers_01 612ca6d0f7
PiperOrigin-RevId: 663811895
[Gpr_To_Absl_Logging] Remove logging header from example and test/cpp folder
Closes#37488
COPYBARA_INTEGRATE_REVIEW=https://github.com/grpc/grpc/pull/37488 from tanvi-jagtap:remove_header_examples 1423ee77ff
PiperOrigin-RevId: 663597077
[Gpr_To_Absl_Logging] Remove logging header from example and test/core/t folder
Closes#37489
COPYBARA_INTEGRATE_REVIEW=https://github.com/grpc/grpc/pull/37489 from tanvi-jagtap:remove_header_test_core_t fd5422b1f5
PiperOrigin-RevId: 663597008
[Gpr_To_Absl_Logging] Remove logging header from example and test/core/t folder
Closes#37491
COPYBARA_INTEGRATE_REVIEW=https://github.com/grpc/grpc/pull/37491 from tanvi-jagtap:remove_header_test_core_02 e524a2da80
PiperOrigin-RevId: 663595237
[Gpr_To_Absl_Logging] Remove logging header from example and test/core/ folder
Closes#37492
COPYBARA_INTEGRATE_REVIEW=https://github.com/grpc/grpc/pull/37492 from tanvi-jagtap:remove_header_test_core_misc fbcd02ab53
PiperOrigin-RevId: 663593905
Split off from https://github.com/grpc/grpc/pull/37425
We are adding and removing callbacks on the OpenTelemetry Async Instruments without synchronization. This opens us to races where we have an AddCallback and RemoveCallback operation happening at the same time. The correct result after these operations is to still have a callback registered with OpenTelemetry at the end, but the two operations could race and we could just decide to remove the OpenTelemetry callback.
The fix delays removing OpenTelemetry callbacks to plugin destruction time.
Closes#37485
COPYBARA_INTEGRATE_REVIEW=https://github.com/grpc/grpc/pull/37485 from yashykt:FixRaceOTelGauge 016b0a41b5
PiperOrigin-RevId: 663492598
It is hard to reason about tests if multiple callbacks record values for the same metrics with the same label sets.
Closes#37486
COPYBARA_INTEGRATE_REVIEW=https://github.com/grpc/grpc/pull/37486 from yashykt:SimplifyOTelPluginTest 3b4d7f90b3
PiperOrigin-RevId: 663457107
Includes a few changes to pollset stuff to make it easier to not use pollsets (which I think is going to be generally helpful in the coming months)
Closes#37397
COPYBARA_INTEGRATE_REVIEW=https://github.com/grpc/grpc/pull/37397 from ctiller:client-chicken 1099cd500a
PiperOrigin-RevId: 660014128
The microbenchmarks are tools for us, and it doesn't seem like we're buying much by maintaining them for different build systems.
Closes#37391
COPYBARA_INTEGRATE_REVIEW=https://github.com/grpc/grpc/pull/37391 from ctiller:pickthis 24184f2b44
PiperOrigin-RevId: 658861012
Two new benchmarks here-in.
Benchmark 1: `bm_picker`
------
Measures various load balancing policies pick performance. For now we cover `pick_first` and `weighted_round_robin` at 1, 10, 100, 1000, 10000, and 100000 backends.
Today's output:
```
------------------------------------------------------------------------------
Benchmark Time CPU Iterations
------------------------------------------------------------------------------
BM_Pick/pick_first/1 20.4 ns 20.4 ns 68285
BM_Pick/pick_first/10 20.6 ns 20.6 ns 68274
BM_Pick/pick_first/100 20.5 ns 20.5 ns 67817
BM_Pick/pick_first/1000 20.6 ns 20.6 ns 67347
BM_Pick/pick_first/10000 20.7 ns 20.7 ns 67317
BM_Pick/pick_first/100000 20.9 ns 20.9 ns 67385
BM_Pick/weighted_round_robin/1 54.7 ns 54.7 ns 26641
BM_Pick/weighted_round_robin/10 54.2 ns 54.2 ns 25828
BM_Pick/weighted_round_robin/100 55.2 ns 55.2 ns 26210
BM_Pick/weighted_round_robin/1000 54.1 ns 54.1 ns 25678
BM_Pick/weighted_round_robin/10000 77.3 ns 76.6 ns 15776
BM_Pick/weighted_round_robin/100000 148 ns 148 ns 9882
```
Benchmark 2: `bm_load_balanced_call_destination`
-----
This benchmark measures call performance when a call spine passes through a `LoadBalancedCallDestination`, and with `BM_LoadBalancedCallDestination` also the construction/destruction cost of this object.
We do not consider picker performance in this benchmark as it's separately covered by `bm_picker` above.
Today's output:
```
-----------------------------------------------------------------------------------------------------------------------------------------
Benchmark Time CPU Iterations
-----------------------------------------------------------------------------------------------------------------------------------------
BM_UnaryWithSpawnPerEnd<UnstartedCallDestinationFixture<LoadBalancedCallDestinationTraits>> 1255 ns 1255 ns 1076
BM_UnaryWithSpawnPerOp<UnstartedCallDestinationFixture<LoadBalancedCallDestinationTraits>> 1459 ns 1459 ns 939
BM_ClientToServerStreaming<UnstartedCallDestinationFixture<LoadBalancedCallDestinationTraits>> 209 ns 209 ns 6775
BM_LoadBalancedCallDestination 92.8 ns 92.8 ns 15063
```
Notes
------
There's some duplicated code between the benchmarks & tests -- this is ok -- as the tests evolve we'll likely want to add more checks to the fixtures, whereas as the benchmarks evolve we may well want to optimize the fixtures so that performance of the systems under test dominate more. That is, the duplicated code is expected to have different evolutionary tracks.
Closes#37052
COPYBARA_INTEGRATE_REVIEW=https://github.com/grpc/grpc/pull/37052 from ctiller:moar-benchy 30c7072d87
PiperOrigin-RevId: 658181731
Craig Tiller
Mark D. Roth
Yash Tibrewal
Yijie Ma
Eugene Ostroukhov
Esun Kim
gRPC Team Bot
Vignesh Babu
Tanvi Jagtap