ringhash: enable behaviors of A76 by default#8922
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arjan-bal merged 1 commit intogrpc:masterfrom Feb 23, 2026
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Those features have been gated by environment variables since 1.73.0, and used in production at Datadog. They can be considered stable. Change the defaults to enable using eds hash_key lb metadata and set_request_hash key. RELEASE NOTES: - ringhash: Enable A76 ring hash improvements by default: EDS endpoint hash key parsing from LbEndpoint metadata and request hash header support via the "requestHashHeader" field. The previous behavior can be restored by setting GRPC_XDS_ENDPOINT_HASH_KEY_BACKWARD_COMPAT=true or GRPC_EXPERIMENTAL_RING_HASH_SET_REQUEST_HASH_KEY=false.
Codecov Report✅ All modified and coverable lines are covered by tests. Additional details and impacted files@@ Coverage Diff @@
## master #8922 +/- ##
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- Coverage 83.30% 83.20% -0.11%
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Files 417 417
Lines 32940 32940
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- Hits 27442 27407 -35
- Misses 4082 4111 +29
- Partials 1416 1422 +6
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easwars
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@arjan-bal : For second set of eyes |
This was referenced Apr 23, 2026
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fix(deps): vuln minor upgrades — 11 packages (minor: 7 · patch: 4) [server]
DataDog/temporalio-ui#27
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Those features have been gated by environment variables since 1.73.0, and used in production at Datadog. They can be considered stable.
Change the defaults to enable using EDS
hash_keylb metadata andrequestHashHeaderLB config field.RELEASE NOTES: