feat(python-sdk): add opt-in metrics and tracing hooks - #509
feat(python-sdk): add opt-in metrics and tracing hooks#509Hendrixx-RE wants to merge 10 commits into
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- Add QueryMetrics dataclass capturing query execution latency, document counts, local vs cloud routing, and error status - Add opt-in on_query hooks at MossClient initialization, client property, and per-query invocation - Support synchronous and asynchronous hooks with automatic error isolation - Add comprehensive test suite in test_metrics.py - Add runnable metrics and tracing example in examples/python/metrics_and_tracing_sample.py
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Included review availability: Your plan provides up to 4 included reviews per hour; 3 remain after this review. 📝 WalkthroughWalkthroughThe Python SDK adds opt-in ChangesQuery observability
Estimated code review effort: 4 (Complex) | ~45 minutes Merge Risk: 🔵 Low · up to The new metrics and tracing example may not run on older SDK installations because its compatibility fallback is incomplete. The impact is limited to the documented sample and integration path, so the PR is mergeable with explicit owner follow-up. Suggested reviewers: Sequence Diagram(s)sequenceDiagram
participant MossClient
participant QueryExecution
participant QueryHook
MossClient->>QueryExecution: execute query
QueryExecution-->>MossClient: return result or error
MossClient->>QueryHook: emit QueryMetrics
QueryHook-->>MossClient: complete synchronously or asynchronously
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Full details: Linked Issues checkExplanation The implementation satisfies issue Full details: Out of Scope Changes checkExplanation The feature implementation, tests, documentation, example, and changelog are in scope. However, multiple unrelated test files contain formatting-only changes, including import reordering, whitespace normalization, and layout changes. Full details: Docstring CoverageExplanation Docstring coverage is 18.02% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 111 functions across 14 files. (1 skipped: 1 unsupported.)
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Comment |
Codex reviewThe PR’s metrics hook implementation is generally scoped, but cancellation is currently reported as success. The examples README also drops the run command for the preceding SessionIndex sample. |
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Inline comments:
In `@examples/python/metrics_and_tracing_sample.py`:
- Around line 26-48: Remove the local QueryMetrics fallback and the related
QueryMetrics import from the sample, and stop passing the unsupported on_query
argument to MossClient. Use the query result’s supported timing field, such as
time_taken_ms, for metrics output instead.
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examples/python/README.mdexamples/python/metrics_and_tracing_sample.pysdks/python/sdk/CHANGELOG.mdsdks/python/sdk/README.mdsdks/python/sdk/src/moss/__init__.pysdks/python/sdk/src/moss/__init__.pyisdks/python/sdk/src/moss/client/moss_client.pysdks/python/sdk/tests/conftest.pysdks/python/sdk/tests/test_client_extended.pysdks/python/sdk/tests/test_cloud_fallback.pysdks/python/sdk/tests/test_create_index_versions.pysdks/python/sdk/tests/test_e2e.pysdks/python/sdk/tests/test_hot_reload.pysdks/python/sdk/tests/test_metadata_filter_e2e.pysdks/python/sdk/tests/test_metrics.pysdks/python/sdk/tests/test_search.pysdks/python/sdk/tests/test_types.py
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@HarshaNalluru review please |
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Closes #436
Description
Adds opt-in metrics and tracing hooks to
MossClientandquery()for observing query latency, volume, and execution status without vendor lock-in.Changes
QueryMetricsdataclass: Capturesindex_name,query,duration_ms,result_count,is_local,top_k,alpha,engine_time_ms,error, and providesis_successproperty andas_dict()serializer.on_queryhook:MossClient(project_id, project_key, on_query=...)client.on_query = ...client.query(index_name, query, on_query=...)sdks/python/sdk/tests/test_metrics.pycovering sync/async hooks, multiple hooks, per-query overrides, local vs. cloud execution, error tracking, and resilience.examples/python/metrics_and_tracing_sample.pydemonstrating custom metrics collector and async tracing integration, updated SDK documentation and changelog.Summary by CodeRabbit
New Features
QueryMetricsandQueryHookfor SDK integration.Documentation
Tests