fix: Bind metrics, REST registry, ui, and lineage servers dual-stack by dbbvitor · Pull Request #6886 · feast-dev/feast

dbbvitor · 2026-09-28T23:52:47Z

What this PR does / why we need it:

Four servers bind IPv4-only or would go IPv6-only under a naive dual-stack fix, unlike the gRPC registry server, which already binds "[::]" unconditionally. On IPv6-only or dual-stack clusters, this makes the affected servers unreachable from one address family or the other (observed as Envoy 503 delayed_connect_error:_Connection_refused for the metrics server).

This adds _ipv6_available(), a probe that binds a throwaway IPv6 wildcard socket to detect real IPv6 support, plus _make_dual_stack_socket(port) in feast/utils.py, a shared pre-bound-socket builder used by all three uvicorn-based servers below (one implementation, not three copies):

_make_metrics_httpd() builds the wsgiref metrics httpd as a WSGIServer subclass bound to "::" with IPV6_V6ONLY cleared when IPv6 is available, or IPv4-only (make_server("", ...), unchanged behavior) otherwise. This one doesn't use _make_dual_stack_socket -- wsgiref's own WSGIServer needs the subclass approach instead of a pre-bound socket.
RestRegistryServer.start_server()
builds the REST registry server's listening socket via _make_dual_stack_socket, then hands it to uvicorn via Server(config).run(sockets=[sock]) instead of uvicorn.run(host=...).
ui_server.start_server() and lineage_server.start_lineage_server(): when the Operator renders host="::" (see PR B, feat/operator-dual-stack), route through the same _make_dual_stack_socket + Server(sockets=[sock]) pattern; any other host keeps today's plain uvicorn.run(host=host) unchanged.

The socket-based indirection is required, not stylistic, for all three uvicorn-based servers (REST registry, ui, lineage): uvicorn's own host="::" binds IPv6-only, because asyncio's loop.create_server() sets IPV6_V6ONLY=1 on any socket it creates itself from a host string. Passing a pre-bound socket with IPV6_V6ONLY=0 avoids that and gets real dual-stack behavior.

All four fall back to the existing IPv4-only bind on hosts with no IPv6 (e.g. kernels booted with ipv6.disable=1, where socket(AF_INET6) raises EAFNOSUPPORT) -- the original issue's "still works on IPv4-only hosts" claim doesn't hold without this fallback.

Which issue(s) this PR fixes:

Part of #6862, with a following PR targeting the operator.

Checks

I've made sure the tests are passing.
My commits are signed off (git commit -s)
My PR title follows conventional commits format

Testing Strategy

Unit tests

Misc

Manually verified end-to-end beyond the unit tests, against a local test repo, for every one of the four affected services, both that dual-stack reachability works with the bind form each actually needs, and that the wrong form for each fails the way PR B's Operator commit assumes it does:

Service	Working form	Reachable?	Wrong form	Failure
`feast serve` (gunicorn)	`-h "[::]"`	127.0.0.1 + ::1	`-h "::"`	bind-string port parsing error
`feast serve_offline` (Arrow Flight)	`-h "[::]"`	127.0.0.1 + ::1	`-h "::"`	`pyarrow.lib.ArrowInvalid: cannot parse URI`
`feast ui` (uvicorn, new path)	`-h "::"`	127.0.0.1 + ::1	`-h "[::]"`	`[Errno 8] nodename nor servname provided`
`feast serve_lineage` (uvicorn, new path)	`-h "::"`	127.0.0.1 + ::1	--	--

codecov-commenter · 2026-09-28T23:56:23Z

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✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 48.22%. Comparing base (b8989cb) to head (202fde8).
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Additional details and impacted files

@@            Coverage Diff             @@
##           master    #6886      +/-   ##
==========================================
+ Coverage   48.06%   48.22%   +0.16%     
==========================================
  Files         427      427              
  Lines       53591    53665      +74     
  Branches     7799     7808       +9     
==========================================
+ Hits        25758    25881     +123     
+ Misses      25980    25924      -56     
- Partials     1853     1860       +7

Flag	Coverage Δ
go-feature-server	`30.58% <ø> (ø)`
python-unit	`49.57% <100.00%> (+0.17%)`	⬆️

Files with missing lines	Coverage Δ
...on/feast/api/registry/rest/rest_registry_server.py	`83.23% <100.00%> (+6.98%)`	⬆️
sdk/python/feast/cli/serve.py	`69.07% <100.00%> (+15.94%)`	⬆️
sdk/python/feast/feature_store.py	`43.68% <ø> (+0.17%)`	⬆️
sdk/python/feast/lineage_server.py	`39.41% <100.00%> (+6.84%)`	⬆️
sdk/python/feast/metrics.py	`81.64% <100.00%> (+6.13%)`	⬆️
sdk/python/feast/ui_server.py	`26.44% <100.00%> (+1.79%)`	⬆️
sdk/python/feast/utils.py	`80.14% <100.00%> (+0.74%)`	⬆️

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ntkathole

Thanks for the thorough PR — well-documented problem and solid test coverage (mutation-aware tests are a nice touch). A few comments below.

ntkathole · 2026-09-29T05:11:33Z

+    sock.bind(address)
+    sock.listen(socket.SOMAXCONN)
+    sock.setblocking(False)
+    return sock


Socket leak: if bind() or listen() throws (e.g. port already in use), the socket is never closed. Wrap the post-creation steps:

try: sock.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1) sock.bind(address) sock.listen(socket.SOMAXCONN) sock.setblocking(False) except: sock.close() raise

Try-except pattern adopted

ntkathole · 2026-09-29T05:11:33Z

@@ -331,21 +331,17 @@ def start_server(

        _sync_protected_project_tag(self.store)



Unlike ui_server and lineage_server (which gate on host == "::"), this unconditionally switches from the old host="0.0.0.0" to dual-stack. On dual-stack hosts this changes the listen address from 0.0.0.0 to [::], which could conflict with firewall rules or existing port binds. Is the unconditional switch intentional, or should this also be opt-in to match the other two servers?

It was intentional, but it can default to '0.0.0.0' as before, as the follow-up PR can expose an override on the CRD.

Here is an example of the override pattern on the follow up PR: https://github.com/feast-dev/feast/pull/6887/changes#diff-9a160662c77106b5759918b6ee5293ab38814aca9c0eb035199c5b4397d1cfe4R3644

ntkathole · 2026-09-29T05:11:33Z

+    sock.setblocking(False)
+    return sock
+
+


setblocking(False) bakes in an asyncio assumption. The function name is generic, but a caller expecting a blocking socket would fail silently. Consider either documenting this in the docstring or adding a blocking=False parameter.

Added the blocking parameter to the func, defaulting to False, and added it to the docstring.

ntkathole · 2026-09-29T05:11:33Z

+    """
+    try:
+        with socket.socket(socket.AF_INET6, socket.SOCK_STREAM) as sock:
+            sock.setsockopt(socket.IPPROTO_IPV6, socket.IPV6_V6ONLY, 0)


Nit: IPv6 support can't change during a process lifetime — caching with @functools.lru_cache() would make that intent explicit and skip the throwaway socket on repeated calls.

Added @functools.lru_cache() decorator to the function.

+    try:
+        with socket.socket(socket.AF_INET6, socket.SOCK_STREAM) as sock:
+            sock.setsockopt(socket.IPPROTO_IPV6, socket.IPV6_V6ONLY, 0)
+            sock.bind(("::", 0))


+        if dual_stack:
+            sock.setsockopt(socket.IPPROTO_IPV6, socket.IPV6_V6ONLY, 0)
+        sock.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
+        sock.bind(address)


The Prometheus metrics server and the REST registry server both hardcode IPv4-only binds ("" and "0.0.0.0"), so neither is reachable on IPv6-only or dual-stack clusters, unlike the gRPC registry server which already binds "[::]" unconditionally. Add an IPv6 probe (feast.utils._ipv6_available) and bind both servers to the IPv6 wildcard when available, falling back to IPv4-only on hosts without IPv6 support (e.g. kernels booted with ipv6.disable=1, where socket(AF_INET6) raises EAFNOSUPPORT). Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com> Signed-off-by: dbbvitor <vitor.diniz@gympass.com>

Add type hints to _make_metrics_httpd per AGENTS.md, and hoist its stdlib wsgiref/socket imports to module level since there's no import-cycle risk. Also restore a blank line in test_metrics.py that a mis-resolved ruff (stale 0.6.9 from PATH, not the pinned 0.16.0) stripped during an earlier commit's pre-commit hook run. Signed-off-by: dbbvitor <vitor.diniz@gympass.com>

uvicorn's host="::" binds IPv6-only: asyncio's loop.create_server() sets IPV6_V6ONLY=1 on any socket it creates itself from a host string, which would silently drop IPv4 clients on every host, not just IPv6-less ones. Bind the socket ourselves (IPV6_V6ONLY=0, falling back to IPv4-only when the host has no IPv6) and hand it to uvicorn via Server.run(sockets=...), the same pattern used for socket-activated Gunicorn workers. Signed-off-by: dbbvitor <vitor.diniz@gympass.com>

start_server (ui_server.py) and start_lineage_server (lineage_server.py) both call uvicorn.run(app, host=host, port=port) directly. A plain host="::" there binds IPv6-only -- asyncio's loop.create_server sets IPV6_V6ONLY=1 on any socket it creates itself from a host string -- which silently drops IPv4 clients on every host, not just IPv6-less ones. This is the same bug the metrics and REST registry servers had, fixed separately on fix/sdk-dual-stack-binds. Add feast.utils._make_dual_stack_socket(port), a shared version of _make_rest_socket's pre-bound-socket approach, and route both servers through it when host == "::": build the socket with IPV6_V6ONLY cleared and hand it to uvicorn.Server(config).run(sockets=[sock]) instead of uvicorn.run(host=...). Any other host keeps today's plain uvicorn.run behavior unchanged. This closes the gap the Operator's dualStack option (feat/operator-dual-stack) depends on: without this fix, enabling dualStack for the ui/lineage services would have silently regressed their IPv4 reachability instead of adding IPv6. Signed-off-by: dbbvitor <vitor.diniz@gympass.com>

_make_rest_socket and the new _make_dual_stack_socket had identical bodies. Delete _make_rest_socket and have rest_registry_server.py call the shared feast.utils helper instead, so there is one implementation for all three uvicorn-based dual-stack servers. Moves the real (port-0) end-to-end socket reachability test from test_api_rest_registry_server.py to test_utils.py, targeting the shared helper directly -- the ui and lineage code paths now get real IPv4/IPv6 reachability coverage from the same test, not just mocks. Signed-off-by: dbbvitor <vitor.diniz@gympass.com>

An unguarded bind()/listen() leaked the socket fd on failure; wrap the setup in try/except so it closes before re-raising. Also cache the IPv6 support probe with lru_cache since it can't change at runtime. Signed-off-by: dbbvitor <vitor.diniz@gympass.com>

RestRegistryServer.start_server() gains a host param, defaulting to "::" (dual-stack, unchanged behavior). Any other value falls back to plain uvicorn.run(host=host), letting deployments opt out of dual-stack binding. Threaded through FeatureStore.serve_registry() and a new --host/-h CLI flag on serve_registry. Signed-off-by: dbbvitor <vitor.diniz@gympass.com>

setblocking(False) baked in an asyncio assumption invisible from the function name, so a caller expecting a blocking socket would fail silently. Default stays False for the existing asyncio-based callers. Signed-off-by: dbbvitor <vitor.diniz@gympass.com>

# [0.67.0](v0.66.0...v0.67.0) (2026-10-13) ### Bug Fixes * Allow dill 0.4 so UDF serialization works on Python 3.14 ([#6858](#6858)) ([139704f](139704f)) * Allow serving features while a feature view is MATERIALIZING ([#6789](#6789)) ([e2d7fe2](e2d7fe2)), closes [#6780](#6780) * Allowlist the pinned commit SHA flagged by detect-secrets ([4b81d18](4b81d18)) * Apply point-in-time filter correctly with the Polars backend ([#6992](#6992)) ([01224d0](01224d0)) * Authorize registry server writes before deserializing UDFs ([e0ef16e](e0ef16e)) * Automate versioned documentation publication ([#6763](#6763)) ([5ad5592](5ad5592)), closes [#6762](#6762) * Avoid NumPy generic-unit deprecation when importing feast.type_map ([5fea698](5fea698)) * Bind metrics, REST registry, ui, and lineage servers dual-stack ([#6886](#6886)) ([8d2773c](8d2773c)) * Bound Arrow Flight batch size in the offline server ([#6896](#6896)) ([d169238](d169238)) * Compute std and var correctly for tiled aggregations ([213a130](213a130)) * Convert PdfBytes values to protos like ImageBytes ([#6968](#6968)) ([af20fe4](af20fe4)) * Decode fixed_size_list as the matching Feast list value type ([#6944](#6944)) ([8cfe891](8cfe891)) * Do not log /metrics requests from the pre-fork metrics server thread ([7087f1f](7087f1f)), closes [#6928](#6928) * Don't return from finally blocks in REST registry helpers ([d7cb4d0](d7cb4d0)) * Encode non-finite floats in feature server JSON responses ([#6930](#6930)) ([211ecb8](211ecb8)) * Feature freshness logic updated ([#6765](#6765)) ([f0bc070](f0bc070)) * Fix monitoring auth ([015cc84](015cc84)) * Handle non-nanosecond timestamps in tiled aggregations ([b8989cb](b8989cb)) * Improve feature list column sizing ([#6793](#6793)) ([2573693](2573693)) * Include vector attributes in Field equality ([#6934](#6934)) ([298c3f6](298c3f6)) * Increase feast container probe timeouts to avoid false restarts ([e8dbd50](e8dbd50)) * Infer the tensor type from retrieved values in to_tensor ([a03e323](a03e323)) * Infer timestamps for datetime columns in any unit or timezone ([810391f](810391f)) * Infer vector width when vector_length is undeclared ([0056565](0056565)), closes [#6907](#6907) * Initialize auth managers in standalone lineage server ([#6873](#6873)) ([ecd0d38](ecd0d38)) * Keep a zero watermark delay threshold on a Kafka source ([e2e28c7](e2e28c7)) * Keep entity rows apart in the ibis point-in-time join ([a87c070](a87c070)) * Keep the BatchFeatureView type and settings when copying it ([#6989](#6989)) ([013fc57](013fc57)) * Keep tiling, offline and stream engine settings when copying a StreamFeatureView ([fac0f88](fac0f88)) * Limit tiled max and min aggregations to the window ([2583c45](2583c45)) * Load Milvus collections once instead of on every query ([#6882](#6882)) ([f9e91fa](f9e91fa)) * Make vector length validation reachable, schema-driven and vectorized ([#6909](#6909)) ([29af8c0](29af8c0)), closes [#6907](#6907) * Map INT32_LIST, PDF_BYTES and IMAGE_BYTES type names to their ValueType ([8c1e825](8c1e825)) * Map narrow and unsigned Arrow integer types to Feast value types ([#6960](#6960)) ([ae74360](ae74360)) * Map Spark smallint and tinyint columns to INT32 ([9d42729](9d42729)) * Map SQL Server bigint to INT64 and float to DOUBLE ([6d15533](6d15533)) * Map Trino DECIMAL columns to pyarrow decimal128 ([155bc24](155bc24)) * Normalize Arrow-backed dtypes from Ray Dataset.to_pandas() for pyarrow >=25 compatibility ([#6916](#6916)) ([374f1d7](374f1d7)) * **operator:** Set grpc appProtocol on the offline Service port ([f9dcfb5](f9dcfb5)) * Pin expected tensor to same device in online retrieval test ([#6777](#6777)) ([1f2584d](1f2584d)) * Preserve an unset aggregation time window across a proto round-trip ([2000379](2000379)) * Preserve entity row order in precomputed reads ([ce37029](ce37029)) * Pull the MinIO test image from pgsty/minio ([fe27230](fe27230)) * Pull the MinIO test image from quay ([#6838](#6838)) ([367001b](367001b)) * Raise Trino monitoring query errors other than a missing table ([6161766](6161766)) * Read Kafka and Kinesis sources without a batch source from proto ([a620f5c](a620f5c)) * Read naive datetimes as UTC in UnixTimestamp values ([bc703d9](bc703d9)) * Record which storage class wrote a custom_storage payload ([#6988](#6988)) ([c0545f7](c0545f7)) * Refresh the SQL registry cache after deleting a data source ([66c55e3](66c55e3)) * Refresh the SQL registry cache after deleting a permission ([6b212f5](6b212f5)) * Reject unknown resource types and actions in the REST permission API ([a5eaa36](a5eaa36)) * Remove pip install command from Redis GLIDE docstring ([66ff990](66ff990)) * Remove runtime pip install hints from mlflow errors ([dd9f099](dd9f099)) * Remove unsupported vector_len from PostgreSQL tutorial config ([fcc9a85](fcc9a85)) * Repair Chronon operator validation and Pixi CI setup ([#6947](#6947)) ([3710f78](3710f78)) * Report Dask monitoring read errors instead of no data ([81673d9](81673d9)) * Resolve feature view batch source name against registry ([f8883d0](f8883d0)) * Restrict UI server CORS to trusted origins ([#6986](#6986)) ([5e7ef3e](5e7ef3e)) * Return feature_view_metadata from the REST feature server ([#6927](#6927)) ([bc5aeef](bc5aeef)) * Serve aliased on demand feature views in feature services ([823b92e](823b92e)) * Snapshot tag filters in registry cache keys ([81e1546](81e1546)) * Stabilize materialization checks across hour boundaries ([#6948](#6948)) ([acadb17](acadb17)) * Stop the Couchbase online store reporting failed writes as written ([b3f3c98](b3f3c98)) * Support SQL registry dump ([b60f9c7](b60f9c7)) * Treat datetimes with a None utcoffset as naive ([687bee8](687bee8)) * Unwrap SecretStr tokens when building Trino auth objects ([#6771](#6771)) ([922db5c](922db5c)) * Use a valid ShuffleStrategy for the Ray DatasetContext ([6259f5c](6259f5c)) * Use do_exchange for offline server reads to support HPA ([bae07fc](bae07fc)) * Use group_by in Polars backend aggregation ([#6965](#6965)) ([7b9fad2](7b9fad2)) * Use upstream kubectl image as feast-operator CronJob default ([d6cc1dc](d6cc1dc)) * Use UTC end bound and correct docs for disable_event_timestamp ([#6956](#6956)) ([cc07c82](cc07c82)), closes [#6936](#6936) ### Features * Add a non-JVM read path for Lance data sources ([#6943](#6943)) ([e2a53bb](e2a53bb)), closes [#6925](#6925) [#5782](#5782) [#6909](#6909) * Add a non-JVM write path for Lance data sources ([#6945](#6945)) ([f754323](f754323)), closes [#6943](#6943) [#6909](#6909) * Add Chronon online and offline store integrations ([#6188](#6188)) ([dd059c6](dd059c6)) * Add consistency_level to the Milvus online store config ([97296c1](97296c1)) * Add dualStack server option to the Feast operator ([#6887](#6887)) ([725a147](725a147)), closes [#6977](#6977) * Add Lance optional dependencies ([#6958](#6958)) ([20bc993](20bc993)) * Add LanceFormat table format with version/tag pinning ([1196e22](1196e22)), closes [#5650](#5650) * Add MLflow as a first-class offline DataSource for Feast ([#6702](#6702)) ([3667772](3667772)) * Add optional GLIDE client for Redis online reads ([#6870](#6870)) ([6e9a532](6e9a532)) * Add quality monitoring features for Trino offline store ([#6779](#6779)) ([9340545](9340545)) * Add SavedDatasetLanceStorage ([1118d3e](1118d3e)) * Add standalone MCP server as a first-class component ([0efab5c](0efab5c)), closes [python-keycloak#623](https://github.com/python-keycloak/issues/623) * Add structured audit logging for MCP feature server ([#6456](#6456)) ([640ac70](640ac70)) * Add Trino compute engine for batch retrieval and materialization ([#6898](#6898)) ([11a47b4](11a47b4)) * Batch Postgres online reads across feature views ([#6832](#6832)) ([514bee7](514bee7)), closes [#3259](#3259) * **bigtable:** Make write batch size and concurrency configurable ([#6847](#6847)) ([5388522](5388522)) * Bucket feature count labels in latency metrics ([#6811](#6811)) ([d9ea120](d9ea120)) * Expose runtime version in Feast UI ([#6843](#6843)) ([fa8f06b](fa8f06b)) * Make Milvus index and search params configurable ([ef743ff](ef743ff)) * Offline write batch for IcebergSource ([5be5ed0](5be5ed0)) * OpenLineage consumer improvements - dataset versioning, column lineage, ownership ([69f294e](69f294e)) * **operator:** Add tolerations and nodeSelector to the FeatureStore CR ([#6741](#6741)) ([03dac6f](03dac6f)) * Serve the MCP server dual-stack on --host :: ([4fc9726](4fc9726)) * Support Milvus partition keys in the Milvus online store ([0ed3285](0ed3285)) * Support token, uri and db_name in the Milvus online store ([c5efecd](c5efecd)) * Version-pinning for FeatureService (online + offline) ([#6718](#6718)) ([787845a](787845a)) ### Performance Improvements * Avoid pandas copy in Spark reads ([#6878](#6878)) ([4771156](4771156)) * Decouple metrics HTTP server into a dedicated child process ([#6855](#6855)) ([0b621de](0b621de)) * Reduce online serving hot-path overhead from metrics and audit logging ([5ee7ee3](5ee7ee3))

* fix: Increase feast container probe timeouts to avoid false restarts Signed-off-by: Srihari <svenkata@redhat.com> * chore: Remove unused hermeto offline tree and sdist requirement locks (feast-dev#6987) * chore: Remove unused multicloud hermeto offline build tree Drop sdk/python/feast/infra/feature_servers/multicloud/offline/, which only supported local hermeto/arrow-from-source and RPM lock offline image builds and is unused by Makefile CI, GitHub Actions, or the standard feature-server Dockerfiles. Also clear related .secrets.baseline entries. Signed-off-by: ntkathole <nikhilkathole2683@gmail.com> Co-authored-by: Cursor <cursoragent@cursor.com> * chore: Drop unused minimal-sdist requirement locks Remove py3.10–3.12 minimal-sdist(-build) lockfiles, stop generating them in lock-python-dependencies-all, and delete the minimal-sdist-build extra. They only supported hermeto build-from-sdist offline image builds. Signed-off-by: ntkathole <nikhilkathole2683@gmail.com> Co-authored-by: Cursor <cursoragent@cursor.com> * chore: Refresh pixi.lock after removing minimal-sdist-build Keep pixi install --locked in sync with the pyproject.toml optional dependency change so ray/duckdb CI environments can install. Signed-off-by: ntkathole <nikhilkathole2683@gmail.com> Co-authored-by: Cursor <cursoragent@cursor.com> --------- Signed-off-by: ntkathole <nikhilkathole2683@gmail.com> Co-authored-by: Cursor <cursoragent@cursor.com> * chore(release): release 0.67.0 # [0.67.0](feast-dev/feast@v0.66.0...v0.67.0) (2026-10-13) ### Bug Fixes * Allow dill 0.4 so UDF serialization works on Python 3.14 ([feast-dev#6858](feast-dev#6858)) ([139704f](feast-dev@139704f)) * Allow serving features while a feature view is MATERIALIZING ([feast-dev#6789](feast-dev#6789)) ([e2d7fe2](feast-dev@e2d7fe2)), closes [feast-dev#6780](feast-dev#6780) * Allowlist the pinned commit SHA flagged by detect-secrets ([4b81d18](feast-dev@4b81d18)) * Apply point-in-time filter correctly with the Polars backend ([feast-dev#6992](feast-dev#6992)) ([01224d0](feast-dev@01224d0)) * Authorize registry server writes before deserializing UDFs ([e0ef16e](feast-dev@e0ef16e)) * Automate versioned documentation publication ([feast-dev#6763](feast-dev#6763)) ([5ad5592](feast-dev@5ad5592)), closes [feast-dev#6762](feast-dev#6762) * Avoid NumPy generic-unit deprecation when importing feast.type_map ([5fea698](feast-dev@5fea698)) * Bind metrics, REST registry, ui, and lineage servers dual-stack ([feast-dev#6886](feast-dev#6886)) ([8d2773c](feast-dev@8d2773c)) * Bound Arrow Flight batch size in the offline server ([feast-dev#6896](feast-dev#6896)) ([d169238](feast-dev@d169238)) * Compute std and var correctly for tiled aggregations ([213a130](feast-dev@213a130)) * Convert PdfBytes values to protos like ImageBytes ([feast-dev#6968](feast-dev#6968)) ([af20fe4](feast-dev@af20fe4)) * Decode fixed_size_list as the matching Feast list value type ([feast-dev#6944](feast-dev#6944)) ([8cfe891](feast-dev@8cfe891)) * Do not log /metrics requests from the pre-fork metrics server thread ([7087f1f](feast-dev@7087f1f)), closes [feast-dev#6928](feast-dev#6928) * Don't return from finally blocks in REST registry helpers ([d7cb4d0](feast-dev@d7cb4d0)) * Encode non-finite floats in feature server JSON responses ([feast-dev#6930](feast-dev#6930)) ([211ecb8](feast-dev@211ecb8)) * Feature freshness logic updated ([feast-dev#6765](feast-dev#6765)) ([f0bc070](feast-dev@f0bc070)) * Fix monitoring auth ([015cc84](feast-dev@015cc84)) * Handle non-nanosecond timestamps in tiled aggregations ([b8989cb](feast-dev@b8989cb)) * Improve feature list column sizing ([feast-dev#6793](feast-dev#6793)) ([2573693](feast-dev@2573693)) * Include vector attributes in Field equality ([feast-dev#6934](feast-dev#6934)) ([298c3f6](feast-dev@298c3f6)) * Increase feast container probe timeouts to avoid false restarts ([e8dbd50](feast-dev@e8dbd50)) * Infer the tensor type from retrieved values in to_tensor ([a03e323](feast-dev@a03e323)) * Infer timestamps for datetime columns in any unit or timezone ([810391f](feast-dev@810391f)) * Infer vector width when vector_length is undeclared ([0056565](feast-dev@0056565)), closes [feast-dev#6907](feast-dev#6907) * Initialize auth managers in standalone lineage server ([feast-dev#6873](feast-dev#6873)) ([ecd0d38](feast-dev@ecd0d38)) * Keep a zero watermark delay threshold on a Kafka source ([e2e28c7](feast-dev@e2e28c7)) * Keep entity rows apart in the ibis point-in-time join ([a87c070](feast-dev@a87c070)) * Keep the BatchFeatureView type and settings when copying it ([feast-dev#6989](feast-dev#6989)) ([013fc57](feast-dev@013fc57)) * Keep tiling, offline and stream engine settings when copying a StreamFeatureView ([fac0f88](feast-dev@fac0f88)) * Limit tiled max and min aggregations to the window ([2583c45](feast-dev@2583c45)) * Load Milvus collections once instead of on every query ([feast-dev#6882](feast-dev#6882)) ([f9e91fa](feast-dev@f9e91fa)) * Make vector length validation reachable, schema-driven and vectorized ([feast-dev#6909](feast-dev#6909)) ([29af8c0](feast-dev@29af8c0)), closes [feast-dev#6907](feast-dev#6907) * Map INT32_LIST, PDF_BYTES and IMAGE_BYTES type names to their ValueType ([8c1e825](feast-dev@8c1e825)) * Map narrow and unsigned Arrow integer types to Feast value types ([feast-dev#6960](feast-dev#6960)) ([ae74360](feast-dev@ae74360)) * Map Spark smallint and tinyint columns to INT32 ([9d42729](feast-dev@9d42729)) * Map SQL Server bigint to INT64 and float to DOUBLE ([6d15533](feast-dev@6d15533)) * Map Trino DECIMAL columns to pyarrow decimal128 ([155bc24](feast-dev@155bc24)) * Normalize Arrow-backed dtypes from Ray Dataset.to_pandas() for pyarrow >=25 compatibility ([feast-dev#6916](feast-dev#6916)) ([374f1d7](feast-dev@374f1d7)) * **operator:** Set grpc appProtocol on the offline Service port ([f9dcfb5](feast-dev@f9dcfb5)) * Pin expected tensor to same device in online retrieval test ([feast-dev#6777](feast-dev#6777)) ([1f2584d](feast-dev@1f2584d)) * Preserve an unset aggregation time window across a proto round-trip ([2000379](feast-dev@2000379)) * Preserve entity row order in precomputed reads ([ce37029](feast-dev@ce37029)) * Pull the MinIO test image from pgsty/minio ([fe27230](feast-dev@fe27230)) * Pull the MinIO test image from quay ([feast-dev#6838](feast-dev#6838)) ([367001b](feast-dev@367001b)) * Raise Trino monitoring query errors other than a missing table ([6161766](feast-dev@6161766)) * Read Kafka and Kinesis sources without a batch source from proto ([a620f5c](feast-dev@a620f5c)) * Read naive datetimes as UTC in UnixTimestamp values ([bc703d9](feast-dev@bc703d9)) * Record which storage class wrote a custom_storage payload ([feast-dev#6988](feast-dev#6988)) ([c0545f7](feast-dev@c0545f7)) * Refresh the SQL registry cache after deleting a data source ([66c55e3](feast-dev@66c55e3)) * Refresh the SQL registry cache after deleting a permission ([6b212f5](feast-dev@6b212f5)) * Reject unknown resource types and actions in the REST permission API ([a5eaa36](feast-dev@a5eaa36)) * Remove pip install command from Redis GLIDE docstring ([66ff990](feast-dev@66ff990)) * Remove runtime pip install hints from mlflow errors ([dd9f099](feast-dev@dd9f099)) * Remove unsupported vector_len from PostgreSQL tutorial config ([fcc9a85](feast-dev@fcc9a85)) * Repair Chronon operator validation and Pixi CI setup ([feast-dev#6947](feast-dev#6947)) ([3710f78](feast-dev@3710f78)) * Report Dask monitoring read errors instead of no data ([81673d9](feast-dev@81673d9)) * Resolve feature view batch source name against registry ([f8883d0](feast-dev@f8883d0)) * Restrict UI server CORS to trusted origins ([feast-dev#6986](feast-dev#6986)) ([5e7ef3e](feast-dev@5e7ef3e)) * Return feature_view_metadata from the REST feature server ([feast-dev#6927](feast-dev#6927)) ([bc5aeef](feast-dev@bc5aeef)) * Serve aliased on demand feature views in feature services ([823b92e](feast-dev@823b92e)) * Snapshot tag filters in registry cache keys ([81e1546](feast-dev@81e1546)) * Stabilize materialization checks across hour boundaries ([feast-dev#6948](feast-dev#6948)) ([acadb17](feast-dev@acadb17)) * Stop the Couchbase online store reporting failed writes as written ([b3f3c98](feast-dev@b3f3c98)) * Support SQL registry dump ([b60f9c7](feast-dev@b60f9c7)) * Treat datetimes with a None utcoffset as naive ([687bee8](feast-dev@687bee8)) * Unwrap SecretStr tokens when building Trino auth objects ([feast-dev#6771](feast-dev#6771)) ([922db5c](feast-dev@922db5c)) * Use a valid ShuffleStrategy for the Ray DatasetContext ([6259f5c](feast-dev@6259f5c)) * Use do_exchange for offline server reads to support HPA ([bae07fc](feast-dev@bae07fc)) * Use group_by in Polars backend aggregation ([feast-dev#6965](feast-dev#6965)) ([7b9fad2](feast-dev@7b9fad2)) * Use upstream kubectl image as feast-operator CronJob default ([d6cc1dc](feast-dev@d6cc1dc)) * Use UTC end bound and correct docs for disable_event_timestamp ([feast-dev#6956](feast-dev#6956)) ([cc07c82](feast-dev@cc07c82)), closes [feast-dev#6936](feast-dev#6936) ### Features * Add a non-JVM read path for Lance data sources ([feast-dev#6943](feast-dev#6943)) ([e2a53bb](feast-dev@e2a53bb)), closes [feast-dev#6925](feast-dev#6925) [feast-dev#5782](feast-dev#5782) [feast-dev#6909](feast-dev#6909) * Add a non-JVM write path for Lance data sources ([feast-dev#6945](feast-dev#6945)) ([f754323](feast-dev@f754323)), closes [feast-dev#6943](feast-dev#6943) [feast-dev#6909](feast-dev#6909) * Add Chronon online and offline store integrations ([feast-dev#6188](feast-dev#6188)) ([dd059c6](feast-dev@dd059c6)) * Add consistency_level to the Milvus online store config ([97296c1](feast-dev@97296c1)) * Add dualStack server option to the Feast operator ([feast-dev#6887](feast-dev#6887)) ([725a147](feast-dev@725a147)), closes [feast-dev#6977](feast-dev#6977) * Add Lance optional dependencies ([feast-dev#6958](feast-dev#6958)) ([20bc993](feast-dev@20bc993)) * Add LanceFormat table format with version/tag pinning ([1196e22](feast-dev@1196e22)), closes [feast-dev#5650](feast-dev#5650) * Add MLflow as a first-class offline DataSource for Feast ([feast-dev#6702](feast-dev#6702)) ([3667772](feast-dev@3667772)) * Add optional GLIDE client for Redis online reads ([feast-dev#6870](feast-dev#6870)) ([6e9a532](feast-dev@6e9a532)) * Add quality monitoring features for Trino offline store ([feast-dev#6779](feast-dev#6779)) ([9340545](feast-dev@9340545)) * Add SavedDatasetLanceStorage ([1118d3e](feast-dev@1118d3e)) * Add standalone MCP server as a first-class component ([0efab5c](feast-dev@0efab5c)), closes [python-keycloak#623](https://github.com/python-keycloak/issues/623) * Add structured audit logging for MCP feature server ([feast-dev#6456](feast-dev#6456)) ([640ac70](feast-dev@640ac70)) * Add Trino compute engine for batch retrieval and materialization ([feast-dev#6898](feast-dev#6898)) ([11a47b4](feast-dev@11a47b4)) * Batch Postgres online reads across feature views ([feast-dev#6832](feast-dev#6832)) ([514bee7](feast-dev@514bee7)), closes [feast-dev#3259](feast-dev#3259) * **bigtable:** Make write batch size and concurrency configurable ([feast-dev#6847](feast-dev#6847)) ([5388522](feast-dev@5388522)) * Bucket feature count labels in latency metrics ([feast-dev#6811](feast-dev#6811)) ([d9ea120](feast-dev@d9ea120)) * Expose runtime version in Feast UI ([feast-dev#6843](feast-dev#6843)) ([fa8f06b](feast-dev@fa8f06b)) * Make Milvus index and search params configurable ([ef743ff](feast-dev@ef743ff)) * Offline write batch for IcebergSource ([5be5ed0](feast-dev@5be5ed0)) * OpenLineage consumer improvements - dataset versioning, column lineage, ownership ([69f294e](feast-dev@69f294e)) * **operator:** Add tolerations and nodeSelector to the FeatureStore CR ([feast-dev#6741](feast-dev#6741)) ([03dac6f](feast-dev@03dac6f)) * Serve the MCP server dual-stack on --host :: ([4fc9726](feast-dev@4fc9726)) * Support Milvus partition keys in the Milvus online store ([0ed3285](feast-dev@0ed3285)) * Support token, uri and db_name in the Milvus online store ([c5efecd](feast-dev@c5efecd)) * Version-pinning for FeatureService (online + offline) ([feast-dev#6718](feast-dev#6718)) ([787845a](feast-dev@787845a)) ### Performance Improvements * Avoid pandas copy in Spark reads ([feast-dev#6878](feast-dev#6878)) ([4771156](feast-dev@4771156)) * Decouple metrics HTTP server into a dedicated child process ([feast-dev#6855](feast-dev#6855)) ([0b621de](feast-dev@0b621de)) * Reduce online serving hot-path overhead from metrics and audit logging ([5ee7ee3](feast-dev@5ee7ee3)) --------- Signed-off-by: Srihari <svenkata@redhat.com> Signed-off-by: ntkathole <nikhilkathole2683@gmail.com> Co-authored-by: Srihari <svenkata@redhat.com> Co-authored-by: Cursor <cursoragent@cursor.com> Co-authored-by: feast-ci-bot <feast-ci-bot@willem.co>

dbbvitor requested a review from a team as a code owner September 28, 2026 23:52

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Comment thread sdk/python/feast/utils.py Fixed

Comment thread sdk/python/feast/utils.py Fixed

dbbvitor mentioned this pull request Sep 29, 2026

feat: Add dualStack server option to the Feast operator #6887

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dbbvitor force-pushed the fix/sdk-dual-stack-binds branch from a4d478f to 2848771 Compare September 29, 2026 00:33

ntkathole reviewed Sep 29, 2026

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github-advanced-security Bot found potential problems Sep 30, 2026

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Comment thread sdk/python/feast/utils.py Fixed

github-advanced-security Bot found potential problems Sep 30, 2026

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ntkathole added the ok-to-test label Sep 30, 2026

ntkathole approved these changes Oct 1, 2026

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dbbvitor and others added 8 commits October 1, 2026 09:44

ntkathole force-pushed the fix/sdk-dual-stack-binds branch from 4b0e7de to 202fde8 Compare October 1, 2026 04:14

ntkathole merged commit 8d2773c into feast-dev:master Oct 1, 2026
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This was referenced Oct 7, 2026

docs: Document the dualStack image requirement dbbvitor/feast#1

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feat: Serve the MCP server dual-stack on --host :: #6977

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rhods-devops-app Bot mentioned this pull request Oct 14, 2026

Automated Sync from main to stable red-hat-data-services/feast#493

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aniketpalu mentioned this pull request Oct 16, 2026

feat: Data registry integration tests opendatahub-io/feast#235

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3 of 7 tasks

		@@ -331,21 +331,17 @@ def start_server(

		_sync_protected_project_tag(self.store)

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dbbvitor commented Sep 28, 2026 •

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