A par2 index and its repost both hold a set: moving both rows to the target
broke par2_sets' primary key, and the round failed on it every minute from
20:28 UTC (no merges at all). Duplicates among the others go first; a set that
fails is logged and the round goes on.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
131 uploads of 1 GiB test files ("kantodoNNN.bin", a.b.test) share their
first 16 KiB and size, so all matched one set's single file and became one
release of 1,284 files. A par2 file that matches more than one release in
the anchor's group and time window is left out; a plain repost of the same
file stays apart too.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
The prober stores, per probed article that starts a file, the MD5 of its
first 16 KiB (file_hashes), and per par2 body the set's whole file list
(par2_files, par2_sets): FileDesc holds the same hash per file, whatever
the file was renamed to. releases:merge (the merger service, no NNTP)
merges every minute the releases of one group, posted within 48 hours of
a release holding the set's par2, whose files the set describes, into the
one with the most files: chunks, probe candidates, inspections, hashes and
counts move; the par2's shared name when none was readable; release_merges
keeps what went where. Obfuscated uploads whose files were each a release
of their own ("[9/20] - "14f5999a…"", hep: 13,232) become one.
Also: corpus_sweep.py counts the marked ranges without psql's command tag.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>