The matching stage makes up to three musicbrainzngs calls per job, none of
which retried. A dropped TLS connection (surfacing as NetworkError,
"<urlopen error [SSL: UNEXPECTED_EOF_WHILE_READING]>") or a 503 rate-limit
(ResponseError) failed the entire pipeline for the job, which then re-queued
and re-ran from scratch — ~36% of jobs churned this way over a 6h window.
Wrap the three MB calls in _with_retry (4 attempts, 1s/2s/4s exponential
backoff), catching only the two transient musicbrainzngs error types so real
bugs still propagate. musicbrainzngs stays lazily imported to keep module
import offline.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
The worker MB resolver picked release groups on (title_ratio, is_album)
and never scored the artist — even though resolve() knows the followed
artist. For a generic title, same-titled release groups by *different*
artists tie on title, and the is_album tiebreak (added in 06e7f91 for
Off the Wall) then actively preferred a foreign Album over the correct
release. Concretely, following Lake Street Dive's "Fun Machine" EP
resolved to an unrelated band "Bastards of Melody"'s same-titled Album,
which then propagated as the downloaded/imported artist.
Make credited-artist similarity the primary sort key, above title and
above is_album. It's a soft signal, never a hard filter, so credited-
name variations (feat., punctuation) still resolve; is_album now only
breaks ties within the same artist+title, preserving the Off the Wall
fix. Verified live: resolve("Lake Street Dive", "Fun Machine") now
returns the 6-track LSD EP.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
MusicBrainz search returns release-groups tied on title similarity in an
arbitrary order; `max(groups, key=_ratio)` kept the first, so Michael
Jackson's "Off the Wall" resolved to the 2-track *single* release-group
(Off the Wall / Get on the Floor) instead of the 10-track album. Because
plan_track_names labels files purely by position, that short tracklist got
mapped onto the full album — track 2 became "Get on the Floor" instead of
"Rock with You", and the real "Off the Wall"/"Get on the Floor" files kept
their streamrip names, yielding duplicate titles.
Extract selection into a pure `_best_release_group()` that breaks title-
similarity ties toward primary-type == "Album". Similarity still dominates;
album preference only settles ties. Live-verified: Off the Wall now resolves
to the 10-track album with track 2 = "Rock With You".
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Jonathan