Grant
6434b01a95
validate.py:
- Builds the same args list a real swap would pass to 'vllm serve'
- SSHes into Spark 1 and runs vLLM's own argparse layer inside the running vllm_node container, WITHOUT initializing the engine
- Uses FlexibleArgumentParser (from vllm.utils.argparse_utils, with fallback to engine.arg_utils) + make_arg_parser — the exact same parser the 'vllm serve' CLI uses. Earlier attempt with bare argparse.ArgumentParser was too strict (rejected '--moe_backend' with underscore that the real CLI accepts via FlexibleArgumentParser's normalization)
- Returns structured {ok, stage, error, cmd_args, launch_cmd} so the UI can surface the exact failure cause
Endpoint: POST /api/swap/{key}/validate. Cheap (~5s), no engine init, no disruption to the currently-loaded model.
Frontend: 'Test' button on every model card, inline result below the action row (green check or red detailed error). Result stays visible until the user reloads or clicks Test again.
Catches: typos in flag names, deprecated/removed flags after a vLLM upgrade, type mismatches. Does NOT catch runtime-only failures (Mamba block-size assertion, OOM at load, kernel-compat). Ok=true is necessary-but-not-sufficient; ok=false is definitive 'don't bother running it'.
14 lines
735 B
TypeScript
14 lines
735 B
TypeScript
import { VersionInfo, IMPOSSIBLE } from '@start9labs/start-sdk'
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export const v0_1_0 = VersionInfo.of({
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version: '0.7.0:2',
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releaseNotes: {
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en_US:
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'v0.7: pre-flight launch validation. New "Test" button on every model card runs vLLM\'s argparse against the proposed launch command inside the running vllm_node container — without starting an engine. Catches unknown flags, bad types, and version-removed flags in about 5 seconds, before disrupting the currently-loaded model. (Runtime-only failures like the Qwen3.6 Mamba block-size assertion still only surface during a real swap, but argparse-stage bugs are now caught up front.)',
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},
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migrations: {
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up: async ({ effects }) => {},
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down: IMPOSSIBLE,
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},
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})
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