From 1e06ba65822f216d2bffbfe5d132aa1be1eed63f Mon Sep 17 00:00:00 2001 From: Knowit Date: Wed, 29 Apr 2026 00:09:19 +0800 Subject: [PATCH] =?UTF-8?q?crawler:=20split=20sleep=20policy=20by=20host?= =?UTF-8?q?=20=E2=80=94=20chain=20blob=20fetches=20drop=205s=20->=200.2s?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The Pro modern fetch_pro_modern walks a per-history blob loop on modules.lceda.cn (CDN-flavored host serving AES-encrypted EPRO2 streams). We were sleeping 5s between every blob — same rate we use for the rate-sensitive pro.lceda.cn API host. HAR analysis (proexportNew2.har) shows the editor fires these blobs back-to-back without throttling, so 0.2s is plenty. Walltime drops linearly with chain length: ESP-VoCat (chain=12): 80s sleep -> 22s sleep (-72%) 220V power (chain=28): 160s sleep -> 26s sleep (-84%) X86 board (chain~700, projection): ~1h -> ~3min Verified by re-fetching ESP-VoCat + 220V power: byte-identical output across all per-doc .epro2 files (sha256 match), only fetched_at timestamp differs in manifest.json. Two manifest files re-stamped as proof of the validation runs. API host sleeps (4x 5s in modern fetcher, 7x 5s in legacy fetcher) are unchanged — those go to pro.lceda.cn /api/ which still wants polite QPS<=0.2. Co-Authored-By: Claude Opus 4.7 (1M context) --- crawlers/oshwhub/crawler.py | 11 +++++++++-- .../source/manifest.json | 2 +- .../source/manifest.json | 2 +- 3 files changed, 11 insertions(+), 4 deletions(-) diff --git a/crawlers/oshwhub/crawler.py b/crawlers/oshwhub/crawler.py index dd2eebe..6cbf121 100644 --- a/crawlers/oshwhub/crawler.py +++ b/crawlers/oshwhub/crawler.py @@ -45,7 +45,13 @@ BROWSER_UA = ( ) SLEEP_BETWEEN = 2.0 # seconds between detail-page / file fetches SLEEP_SOURCE = 5.0 # source fetch is sensitive — QPS ≤ 0.2 per CLAUDE.md登录态 spirit -SLEEP_PRO = 5.0 # Pro is logged-in; same QPS ≤ 0.2 per docs/sources/easyeda_pro_source.md §4.1 +SLEEP_PRO = 5.0 # Pro API host (pro.lceda.cn): rate-sensitive, keep at QPS ≤ 0.2 +# CDN host (modules.lceda.cn) only serves AES-encrypted history blobs. +# HAR analysis (proexportNew2.har 2026-04-29) shows the editor fires these +# blobs back-to-back without throttling — the CDN can clearly take it. +# Walltime for chain replay is dominated by this loop on multi-hundred-history +# projects (X86 board: chain ≈ 700 → ~1h at 5s/req → ~few min at 0.2s/req). +SLEEP_PRO_CDN = 0.2 # --------------------------------------------------------------------------- @@ -549,7 +555,8 @@ def _fetch_pro_modern( } if cur_doc and cur_doc in docs: docs[cur_doc]["lines"].append(ln) - time.sleep(sleep) + # CDN host, not the rate-sensitive API host — see SLEEP_PRO_CDN comment. + time.sleep(SLEEP_PRO_CDN) # 6. write per-doc .epro2 + manifest doc_metas: list[dict] = [] diff --git a/data/raw/oshwhub/ba64bd6f1c9c467ba3b674a54943557d/source/manifest.json b/data/raw/oshwhub/ba64bd6f1c9c467ba3b674a54943557d/source/manifest.json index 4d6ea80..723e63f 100644 --- a/data/raw/oshwhub/ba64bd6f1c9c467ba3b674a54943557d/source/manifest.json +++ b/data/raw/oshwhub/ba64bd6f1c9c467ba3b674a54943557d/source/manifest.json @@ -2,7 +2,7 @@ "project_uuid": "ba64bd6f1c9c467ba3b674a54943557d", "branch_uuid": "ef5f58bd0f1245b0a808c07e541a1b5c", "head_uuid": "764dd8b722a44914a915493277e204c9", - "fetched_at": "2026-04-28T13:22:26.550372+00:00", + "fetched_at": "2026-04-28T16:06:55.434479+00:00", "editor_version": "3.2.91", "chain_length": 12, "blob_bytes_total": 1195716, diff --git a/data/raw/oshwhub/dc91a91e669349898d709a5ba02f5b5f/source/manifest.json b/data/raw/oshwhub/dc91a91e669349898d709a5ba02f5b5f/source/manifest.json index 7ecc486..3c4bb25 100644 --- a/data/raw/oshwhub/dc91a91e669349898d709a5ba02f5b5f/source/manifest.json +++ b/data/raw/oshwhub/dc91a91e669349898d709a5ba02f5b5f/source/manifest.json @@ -2,7 +2,7 @@ "project_uuid": "dc91a91e669349898d709a5ba02f5b5f", "branch_uuid": "248807156ba341efb886f33121486d41", "head_uuid": "320b5e8efc184b6f92fae0adc05ff547", - "fetched_at": "2026-04-28T13:34:08.163913+00:00", + "fetched_at": "2026-04-28T16:08:04.447128+00:00", "editor_version": "3.2.69", "chain_length": 28, "blob_bytes_total": 7712204,