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Tiny add back missing router per attempt response metric#15621

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slin1237 merged 1 commit intosgl-project:mainfrom
fzyzcjy:feat/add_back_router_attempt
Dec 22, 2025
Merged

Tiny add back missing router per attempt response metric#15621
slin1237 merged 1 commit intosgl-project:mainfrom
fzyzcjy:feat/add_back_router_attempt

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@fzyzcjy fzyzcjy commented Dec 22, 2025

Motivation

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Accuracy Tests

Benchmarking and Profiling

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Summary of Changes

Hello @fzyzcjy, I'm Gemini Code Assist1! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

This pull request addresses a missing metric recording in the SGLang model gateway's HTTP router. It ensures that every HTTP response attempt, including those within the retry logic, correctly logs its status code and an extracted error code. This enhancement is crucial for maintaining accurate observability and monitoring of the gateway's performance and error handling.

Highlights

  • Metric Recording Fix: Re-introduced and correctly placed the recording of sgl_router_attempt_http_responses_total metrics for HTTP responses within the router's retry mechanism.
  • Error Code Extraction: Integrated the extract_error_code_from_response utility to capture detailed error codes alongside HTTP status codes for improved metric granularity.

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Code Review

This pull request adds back a metric, smg_router_upstream_responses_total, to track upstream backend responses for each attempt within the HTTP router's retry logic. Note that the metric name in the code (smg_router_upstream_responses_total) differs slightly from the one in the pull request title (sgl_router_attempt_http_responses_total), but it is consistent with other metrics in the codebase. The change is correctly placed within the RetryExecutor's operation closure, ensuring that a metric is recorded for every attempt to route a request. The implementation is clean, correct, and improves the observability of the router's behavior. I have no further comments.

@fzyzcjy fzyzcjy changed the title Tiny add back missing sgl_router_attempt_http_responses_total Tiny add back missing router per attempt response metric Dec 22, 2025
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fzyzcjy commented Dec 22, 2025

/tag-and-rerun-ci

@slin1237 slin1237 merged commit b736a15 into sgl-project:main Dec 22, 2025
70 checks passed
Liwansi added a commit to iforgetmyname/sglang that referenced this pull request Dec 23, 2025
…n_eagle3_dp

* 'main' of https://github.com/sgl-project/sglang: (208 commits)
  MoE: Skip SiLU/GELU activation for masked experts (sgl-project#15539)
  [GLM-ASR] GLM-ASR Support  (sgl-project#15570)
  Improve engine customization interface (sgl-project#15635)
  chore: bump sgl-kernel version to 0.3.20 (sgl-project#15590)
  bugfix[schedule]: Refactor sort method and add related UT (sgl-project#13576)
  Adjust wrong `mtp` meaning introduce by mimo (sgl-project#15632)
  Tiny add back missing router per attempt response metric (sgl-project#15621)
  Fix router gRPC mode launch error caused by async loading (sgl-project#15368)
  [model-gateway] return 503 when all workers are circuit-broken (sgl-project#15611)
  [Diffusion] Support peak memory record in offline generate and serving (sgl-project#15610)
  [VLM] Tiny: Unify VLM environment variables (sgl-project#15572)
  [diffusion] chore: remove default post-denoising dit offload in local mode (sgl-project#15573)
  Tiny enable soft watchdog in CI for stuck without logs (sgl-project#15616)
  Tiny add stuck simulation (sgl-project#15613)
  Support soft watchdog for tokenizer/detokenizer/dp-controller processes (sgl-project#15607)
  Tiny avoid EnvField misuse (sgl-project#15612)
  add decode round robin policy (sgl-project#15164)
  Add glm-4.6-fp8 with/without mtp in nightly ci (sgl-project#15566)
  Adapt fixture-kit to gsm8k mixin (sgl-project#15599)
  [model-gateway] add retry support to OpenAI router chat endpoint (sgl-project#15589)
  ...
jiaming1130 pushed a commit to zhuyijie88/sglang that referenced this pull request Dec 25, 2025
YChange01 pushed a commit to YChange01/sglang that referenced this pull request Jan 13, 2026
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