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xds, pickfirst: Enable additional addresses in xDS, set new pick_first as default - #8126

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arjan-bal merged 5 commits into
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arjan-bal:enable-dualstack-flags
Feb 27, 2025
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xds, pickfirst: Enable additional addresses in xDS, set new pick_first as default#8126
arjan-bal merged 5 commits into
grpc:masterfrom
arjan-bal:enable-dualstack-flags

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@arjan-bal arjan-bal commented Feb 26, 2025 •
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Tested

  • Ran all internal tests (global TAP) with the flags turned on, verified none of the failures were related.
  • PSM interop Dual Stack tests passing since 14th Feb.

RELEASE NOTES:

  • pickfirst: The new pick first LB policy is made the default. The new LB policy implements the Happy Eyeballs algorithm (see A61) to connect to multiple addresses concurrently. To disable the new policy set the environment variable GRPC_EXPERIMENTAL_ENABLE_NEW_PICK_FIRST to false (case insensitive).
  • xds: LB policies will receive additional addresses for endpoints which are specified in the additional_addresses field in the Endpoint message. The additional addresses will be present in the ResolverState.Endpoints passed to UpdateClientConnState method of the balancers. To disable this feature, set the environment variable GRPC_EXPERIMENTAL_XDS_DUALSTACK_ENDPOINTS to false (case insensitive).

@arjan-bal arjan-bal added this to the 1.71 Release milestone Feb 26, 2025
@arjan-bal arjan-bal added the Type: Feature New features or improvements in behavior label Feb 26, 2025
@arjan-bal
arjan-bal force-pushed the enable-dualstack-flags branch from 3fb6f32 to aa373c9 Compare February 26, 2025 06:49
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codecov Bot commented Feb 26, 2025 •
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Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 82.17%. Comparing base (dbf92b4) to head (a81b1d2).
Report is 3 commits behind head on master.

Additional details and impacted files 
@@            Coverage Diff             @@
##           master    #8126      +/-   ##
==========================================
- Coverage   82.18%   82.17%   -0.01%     
==========================================
  Files         387      387              
  Lines       38947    38941       -6     
==========================================
- Hits        32007    31999       -8     
- Misses       5613     5614       +1     
- Partials     1327     1328       +1
Files with missing lines Coverage Δ
internal/envconfig/envconfig.go 100.00% <ø> (ø)

... and 29 files with indirect coverage changes

@arjan-bal
arjan-bal requested a review from dfawley February 26, 2025 06:55
@arjan-bal arjan-bal changed the title xds, pickfirst: Enable additional addresses in xDS and new pick_first as default xds, pickfirst: Enable additional addresses in xDS, set new pick_first as default Feb 26, 2025
easwars
easwars approved these changes Feb 26, 2025
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Comment thread .github/workflows/coverage.yml Outdated

- name: Run coverage with new pickfirst
run: GRPC_EXPERIMENTAL_ENABLE_NEW_PICK_FIRST=true go test -coverprofile=coverage_new_pickfirst.out -coverpkg=./... ./...
- name: Run coverage with other pickfirst

@easwars easwars Feb 26, 2025

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Maybe: s/other/old/?

@arjan-bal arjan-bal Feb 27, 2025

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Changed

@easwars easwars assigned arjan-bal and unassigned dfawley Feb 26, 2025
@arjan-bal
arjan-bal merged commit a510cf5 into grpc:master Feb 27, 2025
@arjan-bal
arjan-bal deleted the enable-dualstack-flags branch February 27, 2025 04:52
This was referenced Feb 27, 2025
Merged
Merged
purnesh42H pushed a commit to purnesh42H/grpc-go that referenced this pull request Mar 1, 2025
@arjan-bal @purnesh42H
deps: update dependencies for all modules (grpc#8108)
7633aab 
cds: stop child policies on resource-not-found errors (grpc#8122)

xds: simplify code handling certain error conditions in the resolver (grpc#8123)

xds, pickfirst: Enable additional addresses in xDS, set new pick_first as default (grpc#8126)

github: change test action to cover the legacy pickfirst balancer (grpc#8129)

cleanup: replace dial with newclient (grpc#7967)

cleanup: replace dial with newclient (grpc#7970)

stats/openetelemetry: refactor and make e2e test stats verification deterministic (grpc#8077)

xds: introduce simple grpc transport for generic xds clients (grpc#8066)

xds: generic xds client common configs

re-push comments

improve ServerConfig equal

easwar review round 1 on documentation

easwar comments on docstrings

easwar comments round 4

config tests

merge with previous pr

xds: add lrs client and xDS client interfaces

second pass to documentation language

change from godoc review

dfawley review 2

easwar review 1

changed to decoder struct

move authorities under xds client

easwar review 2

easwars review 4

ResourceWatcher done and LoadStore stop

grpc based transport

remove server config extension interface

add byte codec

dfawley review 1

send and recv tests with byte based test server

change to proto based server

easwar review 1

easwar review 3

xds: generic xds client ads transport channel
purnesh42H pushed a commit to purnesh42H/grpc-go that referenced this pull request Mar 1, 2025
@arjan-bal @purnesh42H
deps: update dependencies for all modules (grpc#8108)
3be6d24 
ads: stop child policies on resource-not-found errors (grpc#8122)

xds: simplify code handling certain error conditions in the resolver (grpc#8123)

xds, pickfirst: Enable additional addresses in xDS, set new pick_first as default (grpc#8126)

github: change test action to cover the legacy pickfirst balancer (grpc#8129)

cleanup: replace dial with newclient (grpc#7967)

cleanup: replace dial with newclient (grpc#7970)

stats/openetelemetry: refactor and make e2e test stats verification deterministic (grpc#8077)

xds: introduce simple grpc transport for generic xds clients (grpc#8066)

xds: generic xds client common configs

re-push comments

improve ServerConfig equal

easwar review round 1 on documentation

easwar comments on docstrings

easwar comments round 4

config tests

merge with previous pr

xds: add lrs client and xDS client interfaces

second pass to documentation language

change from godoc review

dfawley review 2

easwar review 1

changed to decoder struct

move authorities under xds client

easwar review 2

easwars review 4

ResourceWatcher done and LoadStore stop

grpc based transport

remove server config extension interface

add byte codec

dfawley review 1

send and recv tests with byte based test server

change to proto based server

easwar review 1

easwar review 3

xds: generic xds client ads transport channel
janardhanvissa pushed a commit to janardhanvissa/grpc-go that referenced this pull request Mar 24, 2025
@arjan-bal @janardhankrishna-sai
xds, pickfirst: Enable additional addresses in xDS, set new pick_firs…
2781ed6 
…t as default (grpc#8126)
HailongWen added a commit to HailongWen/google-cloud-go that referenced this pull request May 6, 2025
@HailongWen
fix: explicitly disable gRPC new pickfirst.
7e95692 
As seen in b/415354418, this new experimental feature introduced by
grpc/grpc-go#8126 is not yet stable and may
cause intermittent CloudPath fallbacks.

As a user of the OSS gRPC library, CS library should explicitly disable
it until the underlying issue is fixed.
@HailongWen HailongWen mentioned this pull request May 6, 2025
Merged
rahul2393 added a commit to googleapis/google-cloud-go that referenced this pull request May 7, 2025
@HailongWen @rahul2393
fix: explicitly disable gRPC new pickfirst. (#12206)
745acc4 
As seen in b/415354418, this new experimental feature introduced by
grpc/grpc-go#8126 is not yet stable and may
cause intermittent CloudPath fallbacks.

As a user of the OSS gRPC library, CS library should explicitly disable
it until the underlying issue is fixed.

Co-authored-by: rahul2393 <irahul@google.com>
2FaceS-bit pushed a commit to 2FaceS-bit/google-cloud-go that referenced this pull request May 12, 2025
@HailongWen @rahul2393 @2FaceS-bit
fix: explicitly disable gRPC new pickfirst. (googleapis#12206)
af412db 
As seen in b/415354418, this new experimental feature introduced by
grpc/grpc-go#8126 is not yet stable and may
cause intermittent CloudPath fallbacks.

As a user of the OSS gRPC library, CS library should explicitly disable
it until the underlying issue is fixed.

Co-authored-by: rahul2393 <irahul@google.com>
@github-actions github-actions Bot locked as resolved and limited conversation to collaborators Aug 27, 2025
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@easwars easwars easwars approved these changes
@dfawley dfawley Awaiting requested review from dfawley

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@arjan-bal arjan-bal

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Type: Feature New features or improvements in behavior

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