MusicBrainz Blog

We’ve just pushed out the last MusicBrainz web server update out for this month. Here are the bugs we’ve squashed, and the new features and improvements that have been added. As always, keep helping out with scheduling at the scheduling game, and we’ll do our best to get the important things fixed as soon as we can! Thanks to Ian McEwan, Lukáš Lalinský, Calvin Walton, Johannes Weißl and the MusicBrainz developers for their work on this update.

Bug

• [MBS-2690] – Release editor reports incorrect "Reorder mediums" edits
• [MBS-3692] – Cover image from amazon.es is not displayed
• [MBS-3798] – Cover art not working for amazon.cn
• [MBS-4040] – "Add URL relationship" doesn’t autodetect YouTube channel URLs
• [MBS-4150] – Edit recording edits include artist credits even when they didn’t change
• [MBS-4174] – Changes to track times don’t allow to propagate to recordings
• [MBS-4177] – Don’t add "musicbrainz" to the search path for tests
• [MBS-4181] – Date field doesn’t display nice error message
• [MBS-4184] – label releases list sorted wrong
• [MBS-4185] – Release Editor should not offer to update recordings when creating new ones
• [MBS-4198] – "Link type" in edit search should be "relationship type"
• [MBS-4199] – Search criteria when searching edits by relationship type breaks after initial search
• [MBS-4202] – The "Merge releases and recordings" recording diff always thinks artists are different
• [MBS-4211] – Copy all track changes crashes with new recordings
• [MBS-4222] – When merging releases, I’m asked to pick a "work"
• [MBS-4231] – JS URL cleanup recognizes more URLs than it should

Improvement

• [MBS-2037] – Unify all references to memcached servers in lib/DBDefs.
• [MBS-2799] – RE: Add the option to indicate a release has no barcode
• [MBS-4178] – Languages/Scripts statistics page should exclude unused/unavailable items
• [MBS-4182] – Add RDFa attribute for artist IPI codes
• [MBS-4187] – Display language and script statistics next to each other
• [MBS-4191] – Stop auto-transcluding the Proposal namespace in wikidocs
• [MBS-4195] – Improve Google descriptions
• [MBS-4243] – Use EWMA to smooth rate of change statistics graphs
• [MBS-4247] – Clarify language/script statistics to explain why some languages/scripts aren’t visible

New Feature

• [MBS-3273] – Avoid memcached clashing when running in shared environments
• [MBS-4244] – Add medium format distribution statistics
• [MBS-4245] – Add release format distribution statistics
• [MBS-4246] – Add artist credit distribution statistics

The tag for this release is v-2012-01-26-ngs-bug-fixes.

Sadly, our testing for replication failed to catch a problem with the instructions we posted yesterday. If, when running the replication scripts you encountered the below error, please read on!

Attribute (conn) does not pass the type constraint because: Validation
failed for 'DBIx::Connector' with value DBI::db=HASH(0x9e957d0)
(not isa DBIx::Connector)

We made some changes to our database connection routines recently, and the replication scripts were not correctly migrated. We’ve got these changes in now though, so to fix this problem, repeat the instructions in our previous post, but use the v-2012-01-12-schema-change-2 tag. This should correspond to commit eb89c2b51f79..., which you can verify by running git rev-parse HEAD.

Sorry about these problems!

We’ve just finished pushing out the scheduled schema change update today. A slightly rocky experience, but we’ve managed to get everything ironed out now and our servers are back to their normal selves. Before, I get into release notes, a few notes for people who’d like to upgrade their non-replicated servers. For replicated servers, please see this post.

1. First, update your repository to the v-2012-01-12-schema-change tag.
2. Next, disable any MusicBrainz cron jobs you might have scheduled to run
3. Run ./upgrade.sh provided in the root directory of your musicbrainz-server checkout.
4. Update your DBDefs DB_SCHEMA_SEQUENCE configuration option to 14.
5. Turn any cron jobs back on

And onto the release notes!

Bug

• [MBS-2121] – Deleting track/row in advanced tracklist editor while artist credits "dialog" is open leaves it stuck
• [MBS-2390] – It’s not really possible to assign a track to a recording because cannot see length of track in either tracklist or proposal list
• [MBS-2620] – Most ‘edit’ edits do not check for conflicts
• [MBS-3393] – App keeps DB connections open and doesn’t reconnect upon DB restart.
• [MBS-3696] – Using Jamendo as License Relationship fails due to Javascript change to Cover Art relationship
• [MBS-3972] – ISWC column on works page should be nowrap
• [MBS-4046] – Releases with pending edits are not marked as such in label page
• [MBS-4099] – The server should give a good error message when it can’t connect to the DB
• [MBS-4103] – Problems building database extensions with Ubuntu 11.10
• [MBS-4129] – "Edit artist" doesn’t change artist credit for credits that were unchecked by default but checked manually
• [MBS-4132] – Rate limited pages send HTML as text/plain
• [MBS-4134] – Javascript sorting broken on Country statistics page since comma has been introduced
• [MBS-4136] – beta.mb: recording edits generated by release editor when updating recording information from track changes are not auto-edits
• [MBS-4138] – Language-Script page in statistics broke
• [MBS-4146] – Track times deleted if using tab key
• [MBS-4149] – The added referrer stuff breaks Amazon UK links
• [MBS-4157] – beta.mb: Edit recording edits seem to create a ‘edit release’ edit too
• [MBS-4169] – CDToc page shows blank/empty catalog numbers separated by commas

Improvement

• [MBS-1482] – Report: no language, no script
• [MBS-2439] – Releases with multiple catalog numbers are shown multiple times on the Label page.
• [MBS-2513] – Allow updating recording information when track information changes via the release editor
• [MBS-3288] – Release group type isn’t shown when looking up a release group
• [MBS-4105] – Warn when merging releases with track artists that don’t match

New Feature

• [MBS-4147] – Display AcoustIDs using JavaScript

Task

• [MBS-3672] – Remove the deprecated Live Sound Engineer relationship

Sub-task

• [MBS-2676] – Filter by relationship type