The first rollback failed with "cp: cannot create regular file
'/usr/local/bin/quantus-miner': Text file busy": cp writes in place and the
binary was executing. install unlinks the destination first, the same reason
rsync's temp-file-and-rename push works. Sudoers grant updated and applied
to benjy and quadbrat.
Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01CBgs2nSi4H2mdh8kD8vMX5
The first deploy-mode run sampled /metrics one second after the restart.
miner_gpu_devices is exported only once the miner has connected to the node
and miner_hashes_total only once it has hashed, so both were absent, validate
failed, and rollback restored the previous binary on a good deploy.
Validate now waits up to 90 s for miner_gpu_devices to appear (readiness),
then takes the first non-empty miner_hashes_total sample as the baseline and
requires a larger one within 120 s.
Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01CBgs2nSi4H2mdh8kD8vMX5
