MechaCat02 3e44e66dde Survive a first full crawl: poll, time out on silence, retry downloads ...

The first full crawl with the file manager ran 14 minutes, downloading every
file once, and broke in three ways:

- `schulcloud refresh` reported "fetch failed" for a crawl that was
  succeeding: Node's fetch abandons a response without headers after five
  minutes. POST /api/refresh takes wait:false and the CLI polls /api/status;
  refresh_index answers after 50 s and leaves the crawl running, and
  index_status says when a first crawl is under way.
- Downloads were bounded by the 30 s request timeout, which cut 11 MB scans
  off mid-transfer. They now time out on 30 s of silence instead.
- Failures were recorded once and never retried. A download failure is now
  retried on the next crawl while an extraction failure stays final, and PDF
  text containing NUL, which Postgres refuses, is stripped.

On the re-crawl all six failed files succeeded; only two videos above the
mirror cap stay metadata-only, by design. 137 tests.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

2026-09-16 20:19:16 +02:00

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