chore: sync spark4.1 with master - #2617
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Rana Singh (ranadeepsingh) merged 42 commits intoAug 10, 2026
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…t#2550) Add a ReleaseBranchCompat job that runs on every PR to master. It rebases each release branch (starting with spark4.0) onto the PR HEAD and runs sbt compile test:compile to catch breakage before it lands in master. - Non-blocking (continueOnError: true) - Matrix-based for easy expansion to more release branches - Reports merge conflicts and compile failures as warnings Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
…ease demo image (microsoft#2557) Addresses MSRC case 110886 / incident 31000000570827. The mmlspark/release image (built from tools/docker/demo/Dockerfile) ships Spark 3.5.4, which pins netty 4.1.96.Final. That version is flagged for multiple CVEs (CVE-2023-44487, CVE-2024-29025, CVE-2025-24970, ...). Spark has not bumped netty in any 3.5.x release. netty 4.1.x is binary-compatible, so we replace all netty-*-4.1.96.Final*.jar files in /opt/spark/jars/ with 4.1.118.Final right after the Spark extract. This includes netty-codec-http2 (the specific artifact named by the finder). Also removes 'pyspark' from the conda install line. It was pulling a complete second Spark install (PySpark 4.0.1) into /usr/local/lib/python*/site-packages/pyspark/ that nothing in the demo image actually used (SPARK_HOME points at /opt/spark) and that doubled the surface area scanners report on. Validated locally: - /opt/spark/jars/netty-*-4.1.96.Final*.jar: 0 matches after build - /opt/spark/jars/netty-*-4.1.118.Final*.jar: full set present - /usr/local/lib/.../pyspark: no longer exists - spark-submit --version: works - spark.range(5).count(): returns 5 Jetty (shaded inside hadoop-client-runtime-3.3.4.jar at 9.4.43) is OUT OF SCOPE for this PR; that requires a Spark/Hadoop swap and will be tracked separately.
* chore: add SynapseML local setup skill ## Summary Add a project-scoped SynapseML agent skill that diagnoses local toolchain state, selects JDK 11 for SBT commands, runs a safe local Spark smoke test, and flags live-service tests before agents run them. ## Prompting Intent The engineer asked the agent to create a skill that helps any future agent get SynapseML working locally after the PR 2556 review exposed a local Java 21 and Scala 2.12 compiler-bridge failure. The engineer also asked to create a PR for the skill addition before continuing the original external PR review. ## Linked Sources - User request in current session: create a skill that will help any agent be able to get SynapseML working locally. - Follow-up user request in current session: create a PR for that skill addition and continue using it to review PR 2556. - Existing project-scoped skill convention: .agents/skills/code-review/SKILL.md. - Local validation output: doctor_status=ok, JDK 11 dry-run selected JAVA_HOME, smoke test passed, Azure Search tests flagged review_required. ## Rationale A project-scoped SynapseML skill keeps local setup guidance with the repository where future agents need it. The scripts use explicit parameters rather than session state, force JDK 11 for Scala 2.12 SBT commands, and include a live-service guard so agents do not accidentally create or delete Azure Search resources while validating changes. * chore: move SynapseML setup skill to Copilot path ## Summary Move the SynapseML local setup skill from `.agents/skills/` to `.github/skills/` so it uses the documented Copilot project-skill discovery path. ## Prompting Intent The engineer asked whether the `.agents` folder was correct and whether Copilot would pick it up. Investigation found that the local skill-authoring reference documents `.github/skills/<name>/` and `.claude/skills/<name>/` as project skill locations, so the open skill PR needed a path correction. ## Linked Sources - User question in current session: is this .agent folder correct? will copilot pick this up? - Skill-authoring reference: /home/brwals/.copilot/installed-plugins/copilot-toolkit-marketplace/common/skills/create-skill/references/REFERENCE.md - Existing PR: microsoft#2558 ## Rationale The existing `.agents/skills/code-review` directory was only evidence of a repo-local convention, not evidence of Copilot discovery. Moving the new skill to `.github/skills/synapseml-local-setup/` keeps the same skill content while placing it in the documented project-skill path.
microsoft#2560) * Add v1 OpenAI Endpoint support and remove legacy completions API * Fix FuzzingUnitTest * Add test to increase code coverage * Make v1 api assumption cleaner * Add OpenAICompletion deprecation * Remove deprecation warnings * Fix RAI test for OpenAIPrompt * Revert "Add OpenAICompletion deprecation" This reverts commit fa708e2. * Revert "Fix RAI test for OpenAIPrompt" This reverts commit 3ed6044. * Revert "Remove deprecation warnings" This reverts commit 9a40c5c. * Reapply "Remove deprecation warnings" This reverts commit 987484c. * Reapply "Fix RAI test for OpenAIPrompt" This reverts commit f06f1ad. * Reapply "Add OpenAICompletion deprecation" This reverts commit 10715cd.
## Summary Move the remaining SynapseML repo skill from `.agents/skills/` to `.github/skills/` so Copilot CLI can discover all repo-versioned skills from the documented project-skill path. Add README pointers under `.agents/` for tools or agents that inspect the older convention. ## Prompting Intent The engineer asked to migrate everything to the correct Copilot CLI path and suggested keeping a generic agents pointer. The goal was to make existing skills discoverable by Copilot while avoiding future confusion about `.agents/skills`. ## Linked Sources - User request in current session: migrate everything to the correct path for Copilot CLI and keep a generic agents pointer. - Skill location reference: /home/brwals/.copilot/installed-plugins/copilot-toolkit-marketplace/common/skills/create-skill/references/REFERENCE.md - Prior merged skill PR: microsoft#2558 ## Rationale `.github/skills/<name>/` is the documented Copilot CLI project-skill location. Keeping only README pointers under `.agents/` preserves a breadcrumb for other agent conventions without leaving duplicate or stale `SKILL.md` files in a path Copilot CLI may not load.
* add speechtotextsdk improvements * Fix ffmpeg output args * add ffmpeg url check * fix: address speech recording review feedback Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com> * test: make OpenAIPrompt RAI test resilient Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com> * Revert "test: make OpenAIPrompt RAI test resilient" This reverts commit fccce86. --------- Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
* chore: remove Acrolinx integration config AB#5391146 AB#5391147 ## Summary Remove the retired Acrolinx repository configuration from SynapseML and add the Feature Registry pointer and repo-specific design notes for Feature 5391136. ## Prompting Intent Engineer asked the agent to complete the Acrolinx removal request from the Microsoft Learn authoring tools PM. The repository cleanup needed to remove stale source-controlled Acrolinx state while preserving Feature Registry traceability for the administrative webhook removal and the June 30 contract-expiration risk. ## Linked Sources - ADO Feature: https://msdata.visualstudio.com/A365/_workitems/edit/5391136 - Design Spec task: https://msdata.visualstudio.com/A365/_workitems/edit/5391146 - Deployment task: https://msdata.visualstudio.com/A365/_workitems/edit/5391147 - Feature Registry specs: https://msdata.visualstudio.com/A365/_git/FeatureRegistry?path=/Features/active/5391136 - Teams request: https://teams.microsoft.com/l/message/19:81ff723c-eac9-4b2a-ba9f-844542135555_cc1adbf9-6510-43d6-a849-adba51e66d59@unq.gbl.spaces/1782314980087?context=%7B%22contextType%22%3A%22chat%22%7D - Acrolinx config before cleanup: https://github.com/microsoft/SynapseML/blob/b0fa222cfdde5d0a2cbb2bc6a35630bbb61bc0e3/.acrolinx-config.edn ## Rationale Deleting `.acrolinx-config.edn` is the least invasive source change because the Acrolinx contract is ending and the repo-level webhook was already removed through GitHub administration. Keeping the Feature Registry folder in the repo gives future maintainers a durable pointer to the reason for the cleanup without adding runtime or build behavior. * chore: keep Feature Registry metadata out of SynapseML AB#5391146 AB#5391147 ## Summary Remove the Feature Registry scaffold files from the SynapseML cleanup branch so the public repository PR only deletes the retired Acrolinx config. ## Prompting Intent Engineer clarified that Feature Registry metadata must not be included in the external SynapseML repository. The agent adjusted the existing cleanup PR to keep registry tracking in FeatureRegistry only while preserving the Acrolinx source cleanup. ## Linked Sources - ADO Feature: https://msdata.visualstudio.com/A365/_workitems/edit/5391136 - SynapseML PR: microsoft#2570 - FeatureRegistry PR: https://msdata.visualstudio.com/A365/_git/FeatureRegistry/pullrequest/2169703 - User correction: do not include Feature Registry metadata in the external repo ## Rationale Keeping the public SynapseML PR scoped to `.acrolinx-config.edn` avoids adding internal Feature Registry process artifacts to an external repository. Feature-level tracking remains in the FeatureRegistry PR and ADO work items.
* fix: route AnalyzeText document errors to errorCol Move Azure AI Language document-level errors returned inside HTTP 200 AnalyzeText responses from the response payload into the configured error column after auto-batch flattening. Preserve transport error precedence and add a no-network regression test for mixed document success/error responses. AB#4638662 Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com> * ci: pin PR validation sbt launcher Use the sbt launcher version from project/build.properties instead of installing the latest apt sbt package. This keeps the JDK 11 PR validation job on the repository's sbt 1.10.11 launcher and avoids sbt 2.x rejecting JDK 11 before scalastyle can run. Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com> * ci: use pinned sbt wrapper in PR validation Invoke the downloaded sbt launcher explicitly so the GitHub runner does not resolve its preinstalled sbt 2.x binary under JDK 11. Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com> * ci: prefer pinned sbt on PATH Keep PR validation commands as plain sbt while placing the repository-version launcher first on PATH for subsequent workflow steps. Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com> * test: avoid ordering assumption in AnalyzeText error test Partition collected rows by error nullability instead of relying on collect order, addressing PR review feedback about Spark DataFrames being unordered. Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com> --------- Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
fix: restore Azure pipeline
Pin the shared Python test environment to MLflow 2.21.3, matching the Databricks test dependency. This constrains protobuf to a compatible major version and invalidates the stale conda cache that breaks Python test collection.
test: migrate OpenAI tests and examples to GPT-5.1
ci: migrate Databricks GPU pool to T4
fix: correct LightGBM improvement tolerance semantics
Bumps [amannn/action-semantic-pull-request](https://github.com/amannn/action-semantic-pull-request) from 5.4.0 to 6.1.1. - [Release notes](https://github.com/amannn/action-semantic-pull-request/releases) - [Changelog](https://github.com/amannn/action-semantic-pull-request/blob/main/CHANGELOG.md) - [Commits](amannn/action-semantic-pull-request@v5.4.0...v6.1.1) --- updated-dependencies: - dependency-name: amannn/action-semantic-pull-request dependency-version: 6.1.1 dependency-type: direct:production update-type: version-update:semver-major ... Signed-off-by: dependabot[bot] <support@github.com> Co-authored-by: Rana Singh <ranadeep.dtu@gmail.com>
…t#2597) Bumps [ossf/scorecard-action](https://github.com/ossf/scorecard-action) from 2.3.1 to 2.4.4. - [Release notes](https://github.com/ossf/scorecard-action/releases) - [Changelog](https://github.com/ossf/scorecard-action/blob/main/RELEASE.md) - [Commits](ossf/scorecard-action@0864cf1...2d11466) --- updated-dependencies: - dependency-name: ossf/scorecard-action dependency-version: 2.4.4 dependency-type: direct:production update-type: version-update:semver-minor ... Signed-off-by: dependabot[bot] <support@github.com> Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
) Bumps [actions/setup-java](https://github.com/actions/setup-java) from 5.6.0 to 5.7.0. - [Release notes](https://github.com/actions/setup-java/releases) - [Commits](actions/setup-java@03ad4de...b6effb0) --- updated-dependencies: - dependency-name: actions/setup-java dependency-version: 5.7.0 dependency-type: direct:production update-type: version-update:semver-minor ... Signed-off-by: dependabot[bot] <support@github.com> Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com> Co-authored-by: Rana Singh <ranadeep.dtu@gmail.com>
* docs: add T4 GPU local RAG quickstart ## Summary Add an end-to-end local RAG notebook that performs sentence embedding, exact retrieval, and Phi-4-mini generation on a Databricks T4 worker. Register the notebook in the active GPU smoke suite and documentation sidebar with pinned model dependencies. ## Prompting Intent Reassess the unmerged GPU demo from PR microsoft#2271 against current master. Add a maintainable integration example only if it fills a gap beyond the standalone GPU KNN, Hugging Face CausalLM/Phi, and PDF Q&A notebooks; use current T4 assumptions, avoid TensorRT-LLM and custom CUDA setup, provide deterministic smoke assertions, and make no unrelated pipeline changes. ## Linked Sources - Original proposal: microsoft#2271 - GPU KNN component: microsoft#2157 - Local embedding component: microsoft#2236 - Hugging Face CausalLM/Phi component: microsoft#2301 - Current Databricks T4 validation platform: microsoft#2579 - PDF Q&A reference: https://github.com/microsoft/SynapseML/blob/master/docs/Explore%20Algorithms/AI%20Services/Quickstart%20-%20Document%20Question%20and%20Answering%20with%20PDFs.ipynb ## Rationale The existing notebooks document the individual building blocks but not their local, service-free composition. Exact PyTorch cosine scoring keeps the tutorial small and fully testable on the active T4 suite without reviving the disabled RAPIDS pipeline or its obsolete CUDA/TensorRT initialization. The notebook uses supported current-master models, max_new_tokens rather than conflicting sequence limits, and a PR smoke mode that exercises every GPU stage. Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com> * docs: harden GPU RAG reproducibility checks ## Summary Pin both Hugging Face repositories to immutable commit snapshots, load the Phi model and tokenizer from the same local snapshot with remote code disabled, and strengthen retrieval validation against input-order fallback. ## Prompting Intent Address independent review findings on PR microsoft#2588 by removing mutable model resolution and trust_remote_code, then make the smoke test prove that GPU similarity ranking—not corpus order—selects the answer document. ## Linked Sources - Follow-up pull request: microsoft#2588 - Original proposal: microsoft#2271 - Pinned embedding snapshot: https://huggingface.co/sentence-transformers/all-MiniLM-L6-v2/tree/1110a243fdf4706b3f48f1d95db1a4f5529b4d41 - Pinned Phi snapshot: https://huggingface.co/microsoft/Phi-4-mini-instruct/tree/cfbefacb99257ffa30c83adab238a50856ac3083 ## Rationale SentenceTransformer accepts an immutable revision for its complete model/tokenizer snapshot. HuggingFaceCausalLM loads its tokenizer separately, so Phi is first resolved to one pinned worker-local snapshot and both loaders receive that path. Transformers 4.49 natively supports the checkpoint's phi3 architecture, allowing remote model code to remain disabled. A persisted corpus ordinal and independent Python sort over all GPU scores prove the top-k result differs from the first input rows and has strict score ordering. Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com> * style: format GPU RAG notebook cells ## Summary Apply the repository-pinned Black 22.3 Jupyter formatter to the updated GPU RAG notebook cells. ## Prompting Intent Resolve the Python Style CI failure on PR microsoft#2588 without changing notebook behavior or broadening the patch. ## Linked Sources - Pull request: microsoft#2588 - Failed Azure build: https://msdata.visualstudio.com/b9b2accc-2d1c-45b3-9d24-0eb5d78cc47f/_build/results?buildId=229241355 ## Rationale Black's Jupyter formatter omits the terminal newline stored in each code cell. Formatting only the touched notebook aligns its JSON representation with the CI environment while preserving all model-pinning and retrieval assertions. Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com> * docs: pin GPU RAG hub client and FP16 ## Summary Pin huggingface-hub 0.26.0 in the Databricks GPU libraries and notebook setup, verify the Hugging Face dependency set in unit tests, and force Phi model loading to FP16 on T4 hardware. ## Prompting Intent Address the second independent re-review of PR microsoft#2588 by making snapshot_download's client version reproducible and preventing Phi's BF16 checkpoint metadata from selecting an unsupported native dtype on T4 GPUs. ## Linked Sources - Pull request: microsoft#2588 - Repository environment pin: environment.yml - Hugging Face Hub 0.26.0: https://pypi.org/project/huggingface-hub/0.26.0/ - Pinned Phi configuration: https://huggingface.co/microsoft/Phi-4-mini-instruct/blob/cfbefacb99257ffa30c83adab238a50856ac3083/config.json ## Rationale Version 0.26.0 is already the repository-pinned lower bound used with Transformers 4.49.0, so installing that exact version on the GPU cluster makes snapshot resolution deterministic without introducing a new dependency choice. Phi advertises bfloat16 in its configuration, while NVIDIA T4 compute capability 7.5 lacks native BF16; passing the supported float16 dtype explicitly avoids architecture-dependent auto selection. Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com> * test: guard accelerate GPU dependency pin ## Summary Assert that the Databricks GPU library manifest retains accelerate==0.26.0 alongside the pinned Hugging Face dependencies. ## Prompting Intent Address the remaining actionable review feedback on PR microsoft#2588 by preventing the runtime dependency used for distributed Phi loading from drifting without a focused unit-test failure. ## Linked Sources - Pull request: microsoft#2588 - Reviewed GPU library manifest: core/src/test/scala/com/microsoft/azure/synapse/ml/nbtest/DatabricksUtilities.scala ## Rationale The package is already explicitly pinned in GPULibraries, so extending the existing parsed-manifest test is the smallest regression guard and avoids duplicating library configuration or changing runtime behavior. Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com> --------- Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
microsoft#2601) * chore(deps): bump github/codeql-action/autobuild from 4.37.3 to 4.37.5 --------- Signed-off-by: dependabot[bot] <support@github.com> Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com> Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com> Co-authored-by: ranadeepsingh <16433904+ranadeepsingh@users.noreply.github.com> Co-authored-by: Rana Singh <ranadeep.dtu@gmail.com>
…t#2603) Bumps [postcss](https://github.com/postcss/postcss) from 8.5.19 to 8.5.25. - [Release notes](https://github.com/postcss/postcss/releases) - [Changelog](https://github.com/postcss/postcss/blob/main/CHANGELOG.md) - [Commits](postcss/postcss@8.5.19...8.5.25) --- updated-dependencies: - dependency-name: postcss dependency-version: 8.5.25 dependency-type: indirect ... Signed-off-by: dependabot[bot] <support@github.com> Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com> Co-authored-by: Rana Singh <ranadeep.dtu@gmail.com>
* chore: migrate artifact links off retiring Azure CDN ## Summary Replace all 400 current-master references to mmlspark.azureedge.net with the repository-owned mmlspark Blob Storage origin across runtime package configuration, release output, examples, documentation, notebooks, and every published documentation version. ## Prompting Intent Recreate the intent of the stale CDN-removal PR on current master only after verifying the supported artifact destination and Azure CDN retirement path. Audit each endpoint use by semantics, preserve package and content paths, validate live artifacts and package resolution, and avoid changing or closing the original PR. ## Linked Sources - Original proposal: microsoft#2326 - Azure CDN retirement FAQ: https://learn.microsoft.com/en-us/azure/cdn/classic-cdn-retirement-faq - Azure CDN migration guidance: https://learn.microsoft.com/en-us/azure/cdn/migrate-tier - Azure Front Door/CDN comparison: https://learn.microsoft.com/en-us/azure/frontdoor/front-door-cdn-comparison ## Rationale SynapseML's release pipeline publishes artifacts directly to the mmlspark storage account, the repository already uses that public Blob Storage origin extensively, and byte-for-byte URL checks confirmed the CDN currently proxies the same content. Using the verified origin removes the retiring CDN hostname without inventing an unverified Front Door name, while preserving Maven, documentation, R-package, model, dataset, and icon path semantics. Historical links that already return 404 retain the same status and are not broadened into unrelated artifact-repair work. Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com> * docs: make R setup independent of retired CDN ## Summary Repair current and versioned R setup guidance so each release installs its six published, version-matched component archives and resolves SynapseML JVM artifacts through Blob Storage. Document the compatibility bypass required by already-published wrappers, correct the Databricks setup and LightGBM example, remove invalid HTML-page Maven repositories from the Docker demo, and add generator/docs regressions. ## Prompting Intent Investigate the review finding that published R archives still register the retired Azure CDN resolver. Make repository-controlled R installation work with that hostname unavailable, avoid claiming that externally published archives were rewritten, validate local and Databricks-oriented resolution paths, and state the exact external publishing prerequisite for a full artifact migration. ## Linked Sources - Original migration PR: microsoft#2326 - Current migration PR: microsoft#2589 - Maven repository review: microsoft#2589 (comment) - Azure CDN retirement FAQ: https://learn.microsoft.com/en-us/azure/cdn/classic-cdn-retirement-faq - Azure Front Door migration guidance: https://learn.microsoft.com/en-us/azure/cdn/migrate-tier - Apache Spark package repository configuration: https://spark.apache.org/docs/3.5.0/configuration.html#runtime-environment ## Rationale Existing release archives cannot be repaired by a source-only change because their generated sparklyr metadata is already published. Version-matched component downloads plus an explicit Blob resolver and `extensions = character()` provide a tested repository-controlled path without racing or misrepresenting external publication. Future generated archives inherit the corrected resolver from PackageUtils; fully repairing historical metadata still requires an authorized regeneration and publish to the `mmlspark/rrr` container (or a replacement release). Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com> * docs: correct Spark 3.4 compatibility guidance ## Summary Correct the Spark Packages and Python installation snippets so both identify SynapseML 1.0.15 as the compatible release for Spark 3.4 while retaining SynapseML 1.1.3 for Spark 3.5. ## Prompting Intent Address the remaining actionable review feedback on PR microsoft#2589 in the existing branch, verify the surrounding compatibility guidance stays consistent, run targeted website validation and code review, and rerun the full PR checks. ## Linked Sources - Pull request and review feedback: microsoft#2589 - Original migration context: microsoft#2326 ## Rationale The Databricks, Fabric, and SBT guidance already distinguishes SynapseML 1.1.3 for Spark 3.5 from 1.0.15 for Spark 3.4. Updating only the two stale explanatory references restores consistency without changing the Spark 3.5 commands that the snippets demonstrate. Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com> --------- Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
feat: add backward-compatible AAD auth for Azure Search
…2593) ## Summary Count rows on the original DataFrame RDD so adaptive execution cannot coalesce a projected counting query into a different partition topology. Add a regression that exposes the old 20-to-fewer-partitions drift and verifies exact per-partition counts. ## Prompting Intent Recreate the valid intent behind ancient PR microsoft#2282 from current master only after reproducing issue microsoft#2278. Isolate distributed startup, feature-width bounds, and native pointer lifetime separately; use TDD and submit only a proven root cause with real regression coverage. ## Linked Sources - Reported failure: microsoft#2278 - Superseded ancient proposal: microsoft#2282 ## Rationale The literal-only projection was cheaper, but AQE could optimize it to fewer partitions than the training DataFrame. LightGBM then indexed that shortened count array with real task partition IDs, causing the primary ArrayIndexOutOfBoundsException and secondary connection failures. Counting the exact DataFrame RDD trades projection pruning for topology correctness. Feature-width validation and innerPredict cleanup were deliberately excluded because neither was demonstrated as the cause of microsoft#2278 or backed by a stable leak regression. Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Bumps [github/codeql-action/upload-sarif](https://github.com/github/codeql-action) from 4.37.3 to 4.37.4. - [Release notes](https://github.com/github/codeql-action/releases) - [Changelog](https://github.com/github/codeql-action/blob/main/CHANGELOG.md) - [Commits](github/codeql-action@e4fba86...f205ea1) --- updated-dependencies: - dependency-name: github/codeql-action/upload-sarif dependency-version: 4.37.4 dependency-type: direct:production update-type: version-update:semver-patch ... Signed-off-by: dependabot[bot] <support@github.com> Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Bumps [github/codeql-action/upload-sarif](https://github.com/github/codeql-action) from 4.37.4 to 4.37.5. - [Release notes](https://github.com/github/codeql-action/releases) - [Changelog](https://github.com/github/codeql-action/blob/main/CHANGELOG.md) - [Commits](github/codeql-action@f205ea1...d1ba80a) --- updated-dependencies: - dependency-name: github/codeql-action/upload-sarif dependency-version: 4.37.5 dependency-type: direct:production update-type: version-update:semver-patch ... Signed-off-by: dependabot[bot] <support@github.com> Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
…#2605) The Azure AI Anomaly Detector service has been retired by Microsoft. Every `anomalydetector` REST endpoint now answers HTTP 410 (Gone), verified across paths, API versions and regions.
* fix: correct LightGBM improvement tolerance semantics ## Summary Require lower-is-better validation metrics to improve by more than improvementTolerance before resetting the early-stopping counter. Clarify the parameter documentation and add focused regression coverage for both metric directions and zero tolerance. ## Prompting Intent Investigate GitHub issue microsoft#2565 from a new branch based on master, determine whether the report is valid, and implement a complete fix suitable for an upstream SynapseML pull request. ## Linked Sources - GitHub issue: microsoft#2565 ## Rationale The existing higher-is-better comparison already treats improvementTolerance as a minimum delta, while lower-is-better metrics accepted small regressions. A package-internal comparison helper makes the intended symmetric behavior directly testable without adding a slow native LightGBM fixture or changing public APIs. Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com> * fix: harden LightGBM early stopping parameters ## Summary Expand improvement-tolerance coverage across representative LightGBM metrics and tolerance values. Preserve disabled early stopping when earlyStoppingRound is zero, validate both early-stopping parameters, and document their accepted ranges. ## Prompting Intent The engineer requested broader parameter testing to ensure the issue microsoft#2565 fix does not introduce downstream regressions. Cover related defaults, boundaries, metric families, invalid values, and early-stopping-round interactions before updating the pull request. ## Linked Sources - GitHub issue: microsoft#2565 - Pull request: microsoft#2578 - LightGBM 3.3.5 parameters: https://lightgbm.readthedocs.io/en/v3.3.5/Parameters.html#early-stopping-round ## Rationale Correct tolerance semantics classify more rounds as non-improving, so the wrapper must explicitly preserve LightGBM's zero-means-disabled behavior. Shared Spark parameter validators reject values that LightGBM does not support, while deterministic matrix tests cover the decision logic without depending on platform-specific native binaries. Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com> * ci: prevent sbt bootstrap Maven rate limits SynapseML's Azure Pipelines fans out ~30 hosted-agent matrix jobs that each cold-bootstrap the sbt launcher (org.scala-sbt:sbt:1.10.11, pinned in project/build.properties) and resolve Ivy dependencies from public Maven Central. When many fresh agents -- and several overlapping PR builds -- do this simultaneously, Maven Central returns HTTP 429 (rate limit) and "Setup repo" fails before any test runs (e.g. ADO build 229124511, UnitTests flaky). The pre-existing jittered retries only widened the window against a sustained throttle; they did not remove the thundering herd. Durable fix (cache-first, stagger as supplement): * templates/sbt_cache.yml (primary): Azure Cache@2 for the sbt launcher boot dir (~/.sbt/boot -- the artifact that 429s) and the Ivy cache (~/.ivy2/cache). In steady state, jobs restore these from Azure's cache service and never touch Maven Central. Keys derive from the bootstrap inputs (project/build.properties, project/plugins.sbt, build.sbt) so they invalidate exactly when those change; restoreKeys give a safe partial fallback and continueOnError keeps a cache miss/corruption non-fatal. * BuildAndCacheSbt prewarm job: warms those caches once per run, mirroring the existing BuildAndCacheCondaEnv job. * tools/ci/sbt_retry.sh: single tested helper replacing the duplicated inline retry blocks. Smooths only the cold-cache path with a bounded random start stagger (desynchronises concurrent cold bootstraps) plus bounded jittered exponential-backoff retries. Fails visibly on exhaustion -- no success fallback masking. Wired the shared cache template into every sbt-running job (Style, Publish, Databricks/Fabric E2E, BuildDocker, PythonTests, RTests, WebsiteSamplesTests, UnitTests, ReleaseBranchCompat) by reviving the dormant ivy_cache placeholders, and routed all `sbt setup` bootstraps through the helper. Tests (python -m pytest tools/ci/tests/): deterministically exercise the retry/backoff/stagger + visible-failure behaviour with a fake sbt, and assert pipeline.yaml parses, the cache keys invalidate on bootstrap inputs, and every sbt job is wired to the cache template + prewarm job. No LightGBM, Isolation Forest, GPU, or application changes. TLS verification, job coverage, and all tests are preserved. Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com> * ci: serialize sbt cache prewarm before fan-out ## Summary Make the sbt bootstrap prewarm a mandatory gate before Azure Pipeline matrix jobs start. Add Coursier caching, require exact hits on the boot, Ivy, and Coursier caches before disabling the cold-cache stagger, wire the conditional release job, and strengthen pipeline tests around the dependency graph and cache lifecycle. ## Prompting Intent The engineer asked to fix Maven Central HTTP 429 setup failures in a new stacked PR. The solution must prevent fresh hosted agents from cold-bootstrapping sbt concurrently, allow at least the existing job fan-out after bootstrap is safe, retain bounded retry behavior for cache-service failures, and keep bootstrap failures visible rather than masking them. ## Linked Sources - Failing Azure job: https://msdata.visualstudio.com/b9b2accc-2d1c-45b3-9d24-0eb5d78cc47f/_build/results?buildId=229124511&view=logs&jobId=e97036a1-bcdb-5cd5-905e-b0cf2c8f33cf - Parent PR investigation: microsoft#2578 (comment) - Stacked PR: microsoft#2581 - Prewarm concurrency review: microsoft#2581 (comment) ## Rationale A best-effort prewarm running beside the matrix does not protect the first run for a new dependency key, so every sbt-running job now waits for one successful warm job. Cache-service errors remain non-fatal and fall back to staggered retries, but a failed warm blocks fan-out to avoid recreating the thundering herd. Coursier is cached alongside sbt boot and Ivy because modern resolution uses all three stores, and the stagger is suppressed only when every cache is an exact hit so dependency-only changes remain desynchronized. Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com> * ci: skip Databricks E2E for non-impacting PRs ## Summary Add conservative pull-request impact detection for the six-leg Databricks E2E matrix. Clearly non-impacting documentation, website, GitHub metadata, CI helper, and isolated test-source changes skip Databricks, while all uncertain or runtime-affecting changes continue to run it. ## Prompting Intent The engineer asked to extend PR microsoft#2581 so expensive Databricks Azure Pipeline jobs are skipped when the pull request cannot affect notebook execution. The gate must preserve scheduled and branch coverage, avoid brittle CPU-shard mapping, and default to running whenever impact detection is incomplete or uncertain. ## Linked Sources - Stacked CI PR: microsoft#2581 - Full green baseline build: https://msdata.visualstudio.com/b9b2accc-2d1c-45b3-9d24-0eb5d78cc47f/_build/results?buildId=229164855 - Azure multi-job output variables: https://learn.microsoft.com/en-us/azure/devops/pipelines/process/conditions?view=azure-devops#job-output-variables-used-in-other-job-conditions ## Rationale Use one fail-open decision for the complete Databricks matrix because the five CPU partitions mix notebooks across modules and are not stable ownership boundaries. The detector skips only a narrow allowlist of clearly inert paths; runtime code, notebooks, build and pipeline files, Databricks test utilities, shared TestBase infrastructure, unknown paths, empty diffs, and fetch or classifier failures all keep E2E enabled. Non-PR builds always run to preserve scheduled and release coverage. Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com> * ci: gate Databricks CPU and GPU tests independently (microsoft#2582) * Gate Databricks CPU and GPU tests independently ## Summary Classify changed paths against the actual Databricks CPU and GPU runtime surfaces, emit separate fail-open decisions, and gate each matrix leg independently. ## Prompting Intent The engineer asked to determine exactly when Databricks tests should run, lock down the path rules, and deliver the work as a stacked pull request above PR microsoft#2581. ## Linked Sources - Base CI hardening PR: microsoft#2581 - GitHub stacked PR documentation: https://docs.github.com/en/pull-requests/how-tos/create-pull-requests/creating-stacked-pull-requests - ADO timing audit: build 229176406 ## Rationale CPU and GPU decisions are separated because most module changes cannot affect the expensive GPU notebooks. Unknown paths and shared build or test infrastructure remain fail-open, while explicit test-only and unrelated tooling paths skip safely. This preserves coverage while avoiding unrelated GPU capacity waits. Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com> * ci: fix and streamline release branch compatibility (microsoft#2583) * Fix and streamline release branch compatibility checks ## Summary Run release compatibility checks for both GitHub target-branch formats and replace redundant compile, setup, credential, and per-package SBT tasks with one cached, project-scoped validation process. ## Prompting Intent The engineer asked to fix the silently skipped ReleaseBranchCompat job and simplify it before enabling it so the check is both reliable and efficient. ## Linked Sources - Base CI hardening PR: microsoft#2581 - Evidence build with skipped phase: ADO build 229176406 - Parent stack layer: ci/databricks-impact-gating ## Rationale The target condition accepts both values observed across Azure Repos and GitHub PR providers. A single SBT process retains full test compilation and the intended core, VW, and OpenCV compatibility suites while removing repeated build loading, root-wide IntelliJ setup, unnecessary Key Vault access, and Azure CLI authentication. Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com> * ci: use Entra authentication for ACR cleanup (microsoft#2584) * Use Entra authentication for ACR cleanup Make the weekly ACR cleanup schedule-only, switch it to the dedicated cleanup service connection, replace storage connection-string authentication with Azure CLI Entra authentication, and add fail-safe cleanup tests. The engineer asked to repair the weekly cleanup failures caused by disabled key-based storage authentication, use the declared least-privileged identity, and prevent accidental CI or PR execution. - Failed scheduled build: ADO build 228250033 - Base CI hardening PR: microsoft#2581 - Azure CLI pipeline-run reference: https://learn.microsoft.com/en-us/cli/azure/acr/pipeline-run - Parent stack layer: ci/release-branch-compat Using az storage blob exists with auth-mode login keeps all operations inside the AzureCLI task identity and removes runtime SDK installation, Key Vault access, and storage keys. Images are deleted only after the archive is confirmed, and subprocess argument lists avoid shell interpolation of registry-controlled names. Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com> * Remove redundant CI authentication and Conda work (microsoft#2585) ## Summary Run non-Azure setup and coverage commands as Bash steps, install pinned Black without restoring the 8.6 GB Conda environment, and remove the ineffective standalone Conda cache consumer. ## Prompting Intent The engineer asked for additional improvements that should ship with the requested CI fixes to make builds faster and more reliable without broad behavioral changes. ## Linked Sources - CI efficiency audit from ADO build 229176406 - Base CI hardening PR: microsoft#2581 - Parent stack layer: ci/fix-acr-cleanup-auth ## Rationale AzureCLI tasks create an isolated login for every invocation, so setup and coverage steps that never call az gain no authentication benefit. The Style job only needs pinned Black, not the full cached environment. The standalone Conda job was not a dependency and therefore could not prewarm consumers or prevent cold-cache fan-out. Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com> --------- Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com> --------- Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com> --------- Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com> * ci: extend Docker validation timeout ## Summary Raise the BuildDocker job timeout from 60 to 120 minutes and add a pipeline regression test that preserves enough time for both sequential image builds. ## Prompting Intent The engineer asked to diagnose and fix the remaining failure on microsoft#2581 and to continue full validation until the parent PR is ready, without hiding genuine test failures. ## Linked Sources - Parent PR: microsoft#2581 - Failed PR build: https://msdata.visualstudio.com/b9b2accc-2d1c-45b3-9d24-0eb5d78cc47f/_build/results?buildId=229579403 - Matching master failure: https://msdata.visualstudio.com/b9b2accc-2d1c-45b3-9d24-0eb5d78cc47f/_build/results?buildId=229578121 - Matching master failure: https://msdata.visualstudio.com/b9b2accc-2d1c-45b3-9d24-0eb5d78cc47f/_build/results?buildId=229580525 - Matching master failure: https://msdata.visualstudio.com/b9b2accc-2d1c-45b3-9d24-0eb5d78cc47f/_build/results?buildId=229576499 ## Rationale The Dockerfiles and image behavior were unchanged, but recent hosted-agent builds required roughly 51 minutes when successful and exceeded the default one-hour job cap in multiple master and PR runs. A 120-minute job budget keeps both image validations mandatory while tolerating current registry and package download latency. This is safer and more targeted than skipping an image or doubling agent usage by splitting the builds into parallel jobs. Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com> * ci: address PR review and protect package publishing ## Summary Resolve the blocking PR microsoft#2581 review findings by making ACR archival digest-safe, correcting PipelineRun names and sbt cache invalidation, warming cold agents before direct sbt calls, and validating the canonical package version before publishing. ## Prompting Intent The engineer asked to rebase PR microsoft#2581 onto current master, audit the new review feedback, fix valid actions, ensure the pipelines continue to publish package versions safely, review the complete change, and rerun Azure validation. ## Linked Sources - Integration PR and review threads: microsoft#2581 - Stacked CI changes: microsoft#2582 - Stacked CI changes: microsoft#2583 - Stacked CI changes: microsoft#2584 - Stacked CI changes: microsoft#2585 - ACR transfer guidance: https://learn.microsoft.com/azure/container-registry/container-registry-transfer-images - ACR image deletion behavior: https://learn.microsoft.com/azure/container-registry/container-registry-delete ## Rationale Immutable manifest digests prevent mutable tags such as latest from reusing the wrong backup or deleting an unarchived manifest. Per-agent warming is limited to unavailable or inexact cache restores so exact hits remain fast, while the prewarm job still verifies dependency resolution. Package versions are resolved from the SBT source of truth and release publication fails before side effects when the v-tag disagrees. Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com> --------- Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
* feat: Add lossless string identifier support to SAR Refs microsoft#2275 Refs microsoft#2283 ## Summary Add deterministic, reversible user and item identifier mappings to SAR so string and wide numeric IDs are never cast into lossy caller-visible values. Persist mappings with the model, preserve identifier types in scores and recommendations, define null and unknown-ID behavior, restore typed item recommendation APIs, and add Scala and Python regression coverage. ## Prompting Intent Recreate the intent of the stale SAR string-ID change on current master without copying its lossy casts. Keep the SparkML API coherent and backward compatible for numeric users, use TDD, validate serialization and schema behavior, expose Python wrappers, and exercise targeted compile, style, code generation, Scala, and Python/JVM checks before opening a replacement PR. ## Linked Sources - Feature request: microsoft#2275 - Original pull request: microsoft#2283 - Current SAR implementation at the starting revision: https://github.com/microsoft/SynapseML/tree/7d9fabcc/core/src/main/scala/com/microsoft/azure/synapse/ml/recommendation - Repository review policy: .github/skills/code-review/SKILL.md ## Rationale Use model-owned typed mappings instead of composing RecommendationIndexer because that stage stringifies numeric identifiers, exposes index columns, and cannot recover every original type. Contiguous deterministic indices keep the existing matrix implementation viable, while persisted DataFrame parameters make decoding reversible after save/load. Inner mapping joins intentionally drop null or unseen scoring IDs, strict type validation prevents ambiguous conversions, and legacy numeric models fall back to identity mappings. The approach accepts a deterministic global sort and persisted mapping storage in exchange for lossless, reproducible SparkML behavior. Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com> * fix: Address SAR identifier compatibility review Refs microsoft#2275 Refs microsoft#2594 ## Summary Resolve the four independent review findings on SAR string identifier support. Preserve typed IDs in ranking train/validation splits, accept only round-trip-safe numeric scoring casts, retain established integer recommendation schemas for safely representable numeric IDs, and rank only factor IDs that have real mappings. Add focused Scala and Python regressions and remove unnecessary mapping cache and interaction-count work identified during review. ## Prompting Intent The engineer asked to fix all medium correctness and compatibility findings on PR microsoft#2594, add a regression for each, rerun targeted Scala, code generation, formatting, and Python/JVM validation, then update the existing PR and request re-review without weakening lossless string or wide numeric behavior. ## Linked Sources - Pull request and review context: microsoft#2594 - Feature request: microsoft#2275 - Original pull request: microsoft#2283 - Repository review policy: .github/skills/code-review/SKILL.md ## Rationale Use Spark structs and array functions instead of Double UDF payloads so split schemas remain typed. Numeric scoring IDs are temporarily cast only when casting back reproduces the input, preventing overflow and fractional aliasing while retaining unknown-ID drop semantics. Recommendation decoding conditionally uses the historical integer schema only when every ID round-trips through Int; strings and wide or fractional numeric IDs remain lossless. Candidate indices are intersected with both factors and mappings before top-K so gaps cannot consume recommendation slots. Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com> * fix: Make SAR numeric identifier handling ANSI-safe Refs microsoft#2275 Refs microsoft#2594 ## Summary Use ANSI-safe try_cast expressions for numeric identifier compatibility and legacy mappings. Persist whether model-owned user and item mappings safely round-trip through IntegerType, reuse those flags when selecting recommendation output schemas, and limit destination-index collection to mapping-less legacy models. Add ANSI overflow, persisted-flag, legacy-default, and recommendation-planning regressions. ## Prompting Intent The engineer asked to resolve the second independent review of PR microsoft#2594: prevent CAST_OVERFLOW under spark.sql.ansi.enabled=true, eliminate repeated mapped-model recommendation scans and index collection, add focused regressions, rerun Scala/codegen/Python validation, update the existing PR, trigger Azure Pipelines, and request another re-review. ## Linked Sources - Pull request and review context: microsoft#2594 - Feature request: microsoft#2275 - Original pull request: microsoft#2283 - Repository review policy: .github/skills/code-review/SKILL.md ## Rationale Use Spark SQL try_cast in both cast directions rather than pre-cast comparisons so out-of-range values become null and are filtered even with ANSI mode enabled. Compute compatibility once while fitting and persist it with conservative false defaults for legacy models, avoiding full mapping scans on every recommendation call. New model mappings are contiguous, so mapped models rank the score vector directly; only mapping-less legacy models collect actual candidate indices to preserve gapped-ID correctness. Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com> --------- Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Configure a deterministic repository-local Git committer identity before replaying PR commits onto the Spark 3.5 and Spark 4.1 release branches. Distinguish genuine merge conflicts from rebase infrastructure failures and preserve successful rebase diagnostics.
* ci: preserve sbt retry helper during release replay ## Summary Stage the sbt retry helper outside the repository before switching to Spark release branches, and parameterize the shared cache template so it can invoke that stable path after rebase. ## Prompting Intent Investigate why Spark 3.5 and Spark 4.1 compatibility checks still failed after PR microsoft#2608, reproduce the failure with PR microsoft#2595 changes, implement the complete hotfix, and validate the real release replay path. ## Linked Sources - Failing PR: microsoft#2595 - Prior identity hotfix: microsoft#2608 - Failed Azure build: https://msdata.visualstudio.com/b9b2accc-2d1c-45b3-9d24-0eb5d78cc47f/_build/results?buildId=229969678 ## Rationale The rebased working tree intentionally comes from the Spark release branch, so master-only CI helpers cannot remain repository-relative. Copying the helper to Agent.TempDirectory preserves release-specific dependency resolution and avoids moving cache warming ahead of the rebase, where exact cache hits could hide missing release dependencies. Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com> * ci: replay only release-relevant PR changes ## Summary Replace commit-history rebasing with a three-way application of the synthetic PR merge tree's release-relevant patch onto each Spark release branch. ## Prompting Intent Validate the compatibility hotfix with PR microsoft#2595's real source changes while ensuring CI-only commits do not conflict with old Spark branches that predate the current pipeline and helper files. ## Linked Sources - Validation PR source: microsoft#2595 - Prior identity hotfix: microsoft#2608 - Failed Azure build: https://msdata.visualstudio.com/b9b2accc-2d1c-45b3-9d24-0eb5d78cc47f/_build/results?buildId=229969678 ## Rationale The compatibility job needs the effective PR content on the release tree, not unrelated CI and documentation commits. Building the patch from the synthetic merge commit preserves GitHub's merge result, handles source branches behind master, retains three-way conflict detection, and avoids requiring commit identity. Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com> * ci: focus release compatibility on Spark 4.1 compilation ## Summary Remove the redundant Spark 3.5 release matrix leg and replace broad Spark 4.1 runtime suites with full test compilation of the effective PR patch. ## Prompting Intent Explain why the release compatibility jobs exist and keep fixing the failures exposed by validation PR microsoft#2610, accounting for master already targeting Spark 3.5. ## Linked Sources - Original compatibility PR: microsoft#2550 - Streamlining PR: microsoft#2583 - Integration validation PR: microsoft#2610 - Azure validation build: https://msdata.visualstudio.com/b9b2accc-2d1c-45b3-9d24-0eb5d78cc47f/_build/results?buildId=229984834 ## Rationale Normal PR validation already compiles and tests master on Spark 3.5, so replaying onto the older spark3.5 maintenance snapshot duplicates coverage and introduces unrelated JVM drift. Spark 4.1 test compilation catches cross-version source and test API breakage, while the existing master test fan-out supplies runtime coverage without rerunning broad, memory-heavy suites on a constrained compatibility agent. Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com> --------- Co-authored-by: SynapseML CI <synapseml-ci@users.noreply.github.com> Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
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## Summary Repair the full Spark 4.1 validation failures exposed by Azure build 230432302: use an scoverage release that supports Scala 2.13.17, restore codegen-owned Python package initializers, preserve recommendation wildcard exports, make optional Python matrix variables shell-safe, and reuse the migrated shared T4 pool with the DBR 18.0 runtime. ## Prompting Intent The engineer asked to keep spark4.1 synchronized with master, run all validation, diagnose every failing check rather than adding broad exceptions, preserve Spark 4.1-specific runtime differences, and leave PR microsoft#2617 ready to merge with lean and performant fixes. ## Linked Sources - Pull request: microsoft#2617 - Failed Azure validation: https://dev.azure.com/msdata/A365/_build/results?buildId=230432302 - T4 pool migration: microsoft#2579 - Python initializer preservation: microsoft#2590 - scoverage Scala 2.13.17 support: https://github.com/scoverage/scalac-scoverage-plugin/releases/tag/v2.4.0 ## Rationale Upgrade scoverage instead of disabling coverage so PR validation retains instrumentation. Keep hand-written initializer sources empty where codegen owns exports so generated classes and manual function modules compose correctly, while retaining the existing recommendation model API. Reuse the already-provisioned T4 instance pool because Databricks pools are runtime-agnostic; the cluster still runs DBR 18.0 and strict node-type/capacity validation remains intact. Use Bash parameter expansion for optional matrix variables so absent Azure macros are not interpreted as commands. Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com> Copilot-Session: 81d39bfc-927c-418a-90a8-e0f2cd8fc128
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Queued full Azure validation manually as build 230445651 on regenerated merge ref |
## Summary Fix the remaining cognitive Python, core R, and Databricks GPU failures on the Spark 4.1 synchronization PR. Correct generated OpenAIPrompt inheritance, preserve nested R pipeline stages and ANSI identifier behavior, retain the Databricks runtime's compatible GPU binaries, and bridge Petastorm 0.12.1 to modern PyArrow and NumPy APIs. ## Prompting Intent The engineer asked to bring the spark4.1 branch fully up to date with master while preserving its newer Spark, Scala, SBT, Java, and Python runtime choices. They also asked to resolve active review and CI findings, keep the changes lean and performant, validate them thoroughly, and leave PR microsoft#2617 ready for merge before rerunning the Azure pipeline. ## Linked Sources - Pull request: microsoft#2617 - Azure validation build: https://dev.azure.com/msdata/A365/_build/results?buildId=230445651&view=results ## Rationale Use zero-argument super calls because generated Python classes cannot reference the hand-written OpenAIPrompt symbol. Wrap nested R stages directly from their JVM objects because sparklyr can discard unsupported nested stage wrappers. Keep the Databricks-provided torch and torchvision pair rather than downgrading one side of a binary-compatible runtime stack. Adapt Petastorm at the narrow Horovod import boundary instead of downgrading PyArrow or NumPy across the Spark 4.1 environment. The adapter restores only the legacy filesystem, Parquet dataset, partition, metadata, and worker bootstrap surfaces Petastorm uses, including process workers, filtered and explicit file lists, nullable Hive partitions, and HA HDFS delegation. Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com> Copilot-Session: 81d39bfc-927c-418a-90a8-e0f2cd8fc128
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Queued full Azure validation manually as build 230468122 on regenerated merge ref \8776f58e9bfc7a296624a52e5ad7c6b6dd72e370. /azp run\ remains filtered because Azure evaluates the current \spark4.1\ target pipeline before this PR adds that trigger. |
## Summary Upgrade sparklyr to 1.9.5 so generated R tests remain compatible with dbplyr 2.6 on Spark 4.1. Restore the legacy Parquet schema interface in the Petastorm adapter so Horovod can materialize training metadata on modern PyArrow. ## Prompting Intent The engineer asked to diagnose and repair every remaining PR microsoft#2617 validation failure, preserve performance and the original synchronization intent, add focused regressions, and prepare the branch for another complete CI run. ## Linked Sources - Pull request: microsoft#2617 - Failed Azure validation: https://dev.azure.com/msdata/A365/_build/results?buildId=230468122 - Sparklyr 1.9.5 compatibility notes: https://github.com/sparklyr/sparklyr/blob/main/NEWS.md#sparklyr-195 - Failed text classifier run: https://adb-1885762835647850.10.azuredatabricks.net/?o=1885762835647850#job/895552628703548/run/919690754173096 - Failed vision classifier run: https://adb-1885762835647850.10.azuredatabricks.net/?o=1885762835647850#job/134025213522099/run/171766194205270 ## Rationale Use the upstream sparklyr release that explicitly restores dbplyr 2.6 compatibility instead of carrying a local R monkeypatch or constraining dbplyr. Preserve PyArrow's real ParquetSchema object rather than patching Horovod, which keeps the compatibility layer faithful to the legacy API for all downstream callers and avoids model-specific branching. Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com> Copilot-Session: 81d39bfc-927c-418a-90a8-e0f2cd8fc128
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Queued full Azure validation manually as build 230475923 on regenerated merge ref |
## Summary Restore the Spark 4.1 deep-learning validation path on DBR 18 with functional, hash-pinned Horovod wheels, worker-local Petastorm compatibility bootstrapping, executor-local single-process Gloo execution, and a narrowly scoped Lightning 1.5 stage adapter. ## Prompting Intent Bring the spark4.1 branch fully up to date with master, investigate every failing PR microsoft#2617 check, preserve the newer Spark/Scala/Python runtime baseline, keep the implementation lean and performant, add regression coverage, and make the PR merge-ready without introducing special-case behavior that weakens parallel CI reliability. ## Linked Sources - Pull request: microsoft#2617 - Azure validation build: https://dev.azure.com/msdata/A365/_build/results?buildId=230475923 - Successful text GPU validation: Databricks run 161356080805696 - Successful vision GPU validation: Databricks run 1118440060915460 - DBR cloudpickle compatibility validation: Databricks run 345085110443042 ## Rationale The standard one-worker Horovod Spark backend depended on driver-to-executor HTTPStore connectivity that DBR 18 does not expose. Running the single rank on the assigned GPU executor with loopback Gloo removes that network dependency while preserving the upstream multi-process backend for distributed jobs. Shipping the Petastorm shim by value keeps Horovod rank subprocesses independent of the Maven JAR Python path, and pinning CPU-only CI wheels avoids unnecessary CUDA downloads without changing GPU notebook behavior. Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com> Copilot-Session: 81d39bfc-927c-418a-90a8-e0f2cd8fc128
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Queued full Azure validation as build 230496878 on regenerated merge ref |
## Summary Prepend the active Conda environment's native library directory when launching Petastorm and Horovod child processes. Add regression coverage for library precedence, caller-environment immutability, and multi-process Horovod propagation. ## Prompting Intent The engineer asked to synchronize Spark 4.1 with master, resolve every resulting CI failure without broad exceptions, keep the implementation lean and performant, and make PR microsoft#2617 merge-ready. The failed deep-learning CI process had to be repaired while preserving the original Horovod and Petastorm execution behavior. ## Linked Sources - Pull request: microsoft#2617 - Failing Azure build: https://dev.azure.com/msdata/A365/_build/results?buildId=230496878&view=results ## Rationale Fresh Python processes were selecting the hosted image's older libstdc++ instead of the active Conda environment, causing an ICU CXXABI mismatch. Normalizing only child-process environments fixes native-library resolution without mutating the driver environment, changing Windows behavior, or replacing Horovod's standard multi-process backend. Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com> Copilot-Session: 81d39bfc-927c-418a-90a8-e0f2cd8fc128
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Queued full Azure validation as build 230505183 on regenerated merge ref |
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Full validation is green. Azure build 230505183 passed all 63 jobs on merge ref |
Rana Singh (ranadeepsingh)
requested review from
Brendan Walsh (BrendanWalsh)
and
a balanced review from Copilot
August 10, 2026 22:30
Rana Singh (ranadeepsingh)
merged commit Aug 10, 2026
1d1d0da
into
microsoft:spark4.1
9 checks passed
Rana Singh (ranadeepsingh)
pushed a commit
that referenced
this pull request
Aug 13, 2026
## Summary
Three related gaps in the release tagging workflows, all of which would
silently produce a wrong or mis-attributed release rather than failing.
1. `release-tag-spark.yml` checks out
`github.event.pull_request.merge_commit_sha`. When that value is
empty, `actions/checkout` does not fail - it falls back to the default
branch, so the job would tag master's tip as `vX.Y.Z-spark4.x`. GitHub
does not populate this field for every merge method, and the PR body
this workflow generates tells the operator to use "Rebase and merge".
Added a guard step ahead of the checkout that fails with the manual
tagging command if the field is empty.
2. Both workflows treated "tag already exists" as success without
checking where the tag points. A tag left over from a failed or
re-run release could sit on a different commit, and the workflow would
report a green release for a mis-tagged one. Both now compare the
existing tag to the commit being released and fail if they differ.
3. The guard in (1) originally interpolated
`${{ github.event.pull_request.base.ref }}` straight into the `run:`
block, which contradicts this PR's own rule that every
`github.event.*` value is passed through `env:` and read as an inert
shell variable. Routed through `BASE_REF`.
Idempotency is preserved: a tag that already exists *at the right
commit* is still skipped, so re-running remains safe.
## Prompting Intent
Engineer asked to review the unresolved and suppressed Copilot review
comments across the PRs and fix anything real. These come from three
still-current threads on this PR.
## Linked Sources
- Pull request: #2540
- Review threads: release-tag-spark.yml:72, release-tag-spark.yml:99, release-tag.yml:103
## Rationale
Chose to fail rather than fall back to the base branch tip for the empty
`merge_commit_sha` case. A tip fallback would reintroduce exactly the
race the `merge_commit_sha` pin exists to prevent - a commit landing on
spark4.x between the merge and the job would take the release tag. A
release job that stops and tells a human which command to run is better
than one that guesses.
Chose to fail rather than force-move an existing mismatched tag. Release
tags are consumed downstream by ADO pipeline 17563 and ESRP signing;
silently repointing a published tag is worse than a red build.
On the `merge_commit_sha` question specifically, the reviewer asserted
the field is null for "Rebase and merge". I could not confirm that
empirically: across 341 merged PRs in this repo, zero had a null
`merge_commit_sha`, but every one sampled was squash-merged (single
parent, `(#N)`-suffixed subject), including #2617 "sync spark4.1 with
master", which is the closest analogue to what this workflow produces. So
the claim is unproven here, but the repo does allow rebase merges
(`allow_rebase_merge: true`, `allow_merge_commit: false`) and the failure
mode is a silently wrong release tag. Guarding costs one cheap step and
is correct regardless of which way the API behaves.
Verified the tag logic against all three states in a scratch repo: tag
absent creates, tag present at the same commit skips with success, tag
present at a different commit exits non-zero. actionlint clean on both
files; every run block passes `bash -n`; audited both workflows to
confirm no `github.event.*` value is interpolated directly into a shell
block.
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
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Related Issues/PRs
What changes are proposed in this pull request?
Synchronize
spark4.1with all 36 master-only commits through3c165ea967, while preserving the branch's intentional runtime baseline:OpenAICompletiondeprecation loading so supported OpenAI imports do not emit unrelated warnings.Fabric E2E remains disabled on this branch because Fabric does not yet expose a managed Spark 4.1-compatible runtime. Databricks validation and all non-Fabric CI paths remain enabled.
How is this patch tested?
Validation completed locally and on DBR 18:
test:compile.verifyPythonPackaging.PyCodegenSuite: 12 passed.161356080805696.1118440060915460.345085110443042.Does this PR change any dependencies?
The branch intentionally uses Spark 4.1.1/Scala 2.13.17/Python 3.13-era dependencies. Current LangChain, OpenAI, MLflow, pandas, and PySpark constraints from master are retained where compatible. Isolation Forest is upgraded to the Spark 4.1.1 artifact and excludes transitive Spark runtime jars. Python 3.13 CI uses hash-pinned CPU-only PyTorch wheels to avoid unnecessary CUDA downloads, while DBR GPU notebooks retain the runtime-provided CUDA stack and install a validated Gloo/NCCL Horovod wheel.
Does this PR add a new feature? If so, have you added samples on website?