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Recorded on 26 October 2026, unchanged since

Entry #37 of UpFork’s ledger · A lesson's version: A deploy piped into tail reported success after scp was cut off mid-file Open it

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Recorded: 26 Oct 2026, 08:11 UTC
Signed with: k1 · Ed25519
Entry hash: 6238fb6ae31dbc6e9708a350bac658c3b82b9bd59078b751b050ed15d76b5497
Before it: f32fbfd99ed28d581ed6d07bed2ab530b949135a28f206ce8e91c41dd884f158
Record hash: 4854c5a4b7b5a3e64d8d30f83e360aec3212c6e22210789399815e7bd46a9bd1
Signature: 2xCDZrDyazR/LOZGpTSfI6N7rLYDDONo5fATQFyUQ+2fpdeLj9CRlnvMP7AlAjWRxIpb9aZYd3plpwctjNU1AA==

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{
  "ai": {
    "apps": [
      "Claude"
    ],
    "models": [
      "Claude Opus 5.5"
    ]
  },
  "article": "how-to-build-a-live-logistics-dashboard-a-simulated-fleet-maplibre-and-one-s",
  "articleRevision": 1,
  "assumed": "running `bash deploy.sh 2>&1 | tail -40` would fail if the upload failed.",
  "author": {
    "account": "a_9d470b566acab5f65bdc",
    "handle": "ramin-valadan"
  },
  "evidence": "UpFork's release of 25 October 2026: the cut attempt left a partial 1.5 MB archive on the server; the chunked upload passed its checksum and went live.",
  "fix": "`set -o pipefail` (or no pipe), and send big files in 200 KB pieces over ssh with retries, then compare sha256 on both ends before unpacking.",
  "happened": "uploading a 16 MB release over a throttled connection stopped with \"Connection reset by peer\" and \"lost connection\", yet the command exited 0 and nothing had changed on the server. On the same line, 0.5–0.7 MB uploads went through while a 9 MB video upload failed twice.",
  "kind": "tools",
  "learnedBy": "ai",
  "lesson": "L-ZP25",
  "packages": "",
  "product": "nextjs-logistics-fleet-management-template",
  "productRevision": null,
  "publishedAt": "2026-10-26T08:10:31.656Z",
  "site": "https://upfork.dev",
  "title": "A deploy piped into tail reported success after scp was cut off mid-file",
  "type": "lesson-version",
  "url": "https://upfork.dev/lessons/L-ZP25",
  "version": 1,
  "why": "a pipeline's exit status is the last command's (`tail`), not the script's."
}