Web server update, 2011-09-26

A bit late on releasing this one I’m afraid, but we finally got this delayed release out today. Here’s everything that got fixed and changed:


  • [MBS-375] – Create redirect web server config files
  • [MBS-1349] – Differences in current and migrated "Set track lengths from discID" edit display
  • [MBS-1380] – An URL ending in closing parenthesis gets broken when listed in edit notes
  • [MBS-1947] – When logged out, viewing a private collection should prompt a log in
  • [MBS-2084] – Approve/cancel and tagger buttons add extra whitespace above the heading
  • [MBS-2202] – User names with spaces cause superficial problems when sending emails
  • [MBS-2591] – Release editor unescaping HTML entities POSTed to http://musicbrainz.org/release/add
  • [MBS-2608] – Logged in as autoeditor, seeing nag screen
  • [MBS-2911] – URL decoding should not decode non-utf-8 strings
  • [MBS-2936] – Merging Artists does not merge birthday
  • [MBS-3001] – Set track lengths now even more difficult to compare
  • [MBS-3134] – When viewing a DiscID ToC page, there’s no indication if there’s a pending Remove edit for an issue.
  • [MBS-3170] – UTF error yields 502
  • [MBS-3264] – Historic "Add ISRC" edits not linked to releases
  • [MBS-3268] – Approving an edit in a new tab yields a misleading error message
  • [MBS-3309] – An error while trying to add a release from Picard
  • [MBS-3333] – Internal server error when adding AR twice (accidental misclick)
  • [MBS-3467] – /otherlookup for freeDB ID gives misleading error
  • [MBS-3497] – Artist credit editor is hidden when the balloon is stretched too high
  • [MBS-3499] – Encoding error – couldn’t render template…
  • [MBS-3511] – Edit note syntax broken
  • [MBS-3521] – Sporadic ISEs when trying to view the editing history of an artist
  • [MBS-3529] – Uppercase cover art file extension not recognized
  • [MBS-3530] – "Edit barcodes" edits are not linked to relevant release artists
  • [MBS-3532] – ISE when editing a relationship to the same as an existing relationship
  • [MBS-3533] – ISe adding a CD Stub where MB already has the discID
  • [MBS-3538] – Two redirects for /show/edit/conditions.html
  • [MBS-3539] – Regression: Instrument search in relationship editor no longer works in Firefox/Opera
  • [MBS-3546] – ISE when visiting Tag Lookup page without arguments
  • [MBS-3548] – Admin "adjust flags" panel crashes on form submission
  • [MBS-3549] – Field validation prevents adding lyrics relationship URL to lyricstatus.com
  • [MBS-3559] – Searching works gives an internal server error: Caught exception in MusicBrainz::Server::Controller::Search->external "Can’t use string ("backward") as a HASH ref while "strict refs" in use
  • [MBS-3561] – Can’t find any work
  • [MBS-3565] – "Can’t use an undefined value as an ARRAY reference" ISE when doing artist query for works from /ws/2


  • [MBS-1470] – Ask for confirmation before canceling an edit
  • [MBS-3493] – Show message in overview for empty artists
  • [MBS-3545] – Make Tag Lookup usable again by "regular" editors

New Feature

  • [MBS-2963] – Support ‘release-groups’ inc parameter for /ws/2/release browsing

Search Server Update, 2011-09-28

On Wednesday we rolled out an upgrade of our indexed search servers. These search servers are used for search in both the web service and website. This release includes some fixes and improvements added to make it easier to handle some particular search cases, plus few other fixes. A fairly critical bug with respect to work searching was came up yesterday after this update, but we’ve released a hot-fix patch to solve that problem. Here are the release notes:


  • [SEARCH-82] – Relation Type in Work relation list is reported as {xxxx}{yyyy}zzz
  • [SEARCH-104] – Querying "code:XXXXX" in a label search returns no results.
  • [SEARCH-106] – target-type attribute missing in relation-list elements
  • [SEARCH-110] – Web service is returning ‘disambiguation’ element in release groups
  • [SEARCH-112] – Label codes are indexed as strings
  • [SEARCH-113] – Label aliases don’t produce the expected results
  • [SEARCH-116] – Freedb import chokes on entries with multiple ids
  • [SEARCH-121] – Recording search only searches on recording artists not track artists if different


  • [SEARCH-114] – Index unset artist countries as unknown
  • [SEARCH-115] – Allow advanced search for releases with zero mediums

New Feature

  • [SEARCH-90] – Search for standalone recordings

NGS Bug fixes 2011-09-21 and the New "Split Artist" Feature

Apologies for being a few days late here, but we’ve just finished updating the servers with the latest set of bug fixes and new features. This release brings a new feature that people have been asking for since NGS – the ability to “split” an artist into artist credits.

Split Artist

With NGS, we had the ability to link multiple artists to recordings/releases/etc. While our migration script handled most cases, there are some cases when it was unclear how to automatically split artists, and we opted to leave that artist unchanged. While it was possible to manually edit references to this artist, it was painful. We now have a convenient way to make this process easier. In the sidebar of artists there is now a “split into separate artists” link:

The new "split into separate artists" feature
The new "split into separate artists" feature

Clicking this link will present you with a form where you can choose the new set of artists. For example, here’s me splitting the single “Alix Perez & SpetraSoul” artist into the correct separate artists:

The "split artists" form
The "split artists" form

As with the other types of editing in MusicBrainz, this edit has to be voted on by other editors before it is applied.

The split artists edit type can only be used on artists that have no relationships, other than “collaboration” relationships. If the artist does have collaboration relationships, edits to remove all collaboration relationships will be entered at the same time. Note also that this will not remove the now empty artist entirely – that will happen when ModBot does its daily cleanup.


We’ve continued working through the bugs as well, and here are the tickets that have been closed in this release.

  • [MBS-1133] – Don’t try to delete relationship types that are still in use
  • [MBS-1343] – Add AR instrument search function has problems with accented letters
  • [MBS-1380] – An URL ending in closing parenthesis gets broken when listed in edit notes
  • [MBS-1396] – Allow for URLs longer than 255 chars
  • [MBS-1411] – Don’t lowercase relationship attributes
  • [MBS-1520] – Tag lookup page has odd search results
  • [MBS-1879] – Remove the non-functional /search/plugins page
  • [MBS-1934] – Inconsistency: “see other versions of this release” vs. “see release group”
  • [MBS-1936] – Historic MusicBrainz::Server::Edit::Historic::EditArtist incorrect: doesn’t include artist names, always use “[removed]”
  • [MBS-1950] – Artist Sortname is shown instead of Artist Name in historic edits
  • [MBS-2047] – Email sender addresses have regressed
  • [MBS-2195] – Don’t allow submitting relationships where the relationship type has no description
  • [MBS-2335] – Other Lookup ISWC search should strip spaces
  • [MBS-2495] – Auto-edit status in edit documentation is misleading
  • [MBS-2529] – Orphaned release group and recordings after rejecting or cancelling a release/medium
  • [MBS-2911] – URL decoding should not decode non-utf-8 strings
  • [MBS-2934] – “Change release group” edit doesn’t appear in artist’s edits
  • [MBS-2944] – Vote on all edits control should only be shown to auto-editors
  • [MBS-3226] – Multi-artist credits with no artist selected produce very confusing behavior
  • [MBS-3227] – Lookup TOC page incomplete for logged out users.
  • [MBS-3269] – Track #s get automatically added to track titles every time the tracklist tab is opened
  • [MBS-3274] – Editing track names using with the basic editor removes track artists and disassociates recordings
  • [MBS-3278] – Warning about using various artists as track artist flashes on screen
  • [MBS-3347] – When trying to add cover art from disallowed sites, no error is shown
  • [MBS-3351] – ws/2 stacktrace browsing release by label
  • [MBS-3358] – “Open Edits” and “All Edits” tabs not marked as open
  • [MBS-3373] – URL cleanup stuff doesn’t always run in time
  • [MBS-3381] – Orphaned release groups/recordings created by release editor should be automatically removed
  • [MBS-3391] – Don’t allow to enter “performs instrument” without instrument
  • [MBS-3399] – No edit links for relationships in the appearances section on the artist relationships tab
  • [MBS-3402] – Do not allow subscriptions to “Various Artists” or “Deleted Artist”
  • [MBS-3403] – “Change release group” edit doesn’t show up in edit history / open edits of target release group
  • [MBS-3405] – Remove leading / trailing / double spaces in titles
  • [MBS-3434] – High DQ Release allows Auto-edits + incorrect edit conditions for merge
  • [MBS-3436] – “Wiki Version” column on transclusion page shows ERROR
  • [MBS-3443] – Inconsistency in sorting of “Edits by subscribed editors” ≠ “Edits for subscribed entities”
  • [MBS-3445] – Cannot search edits by editor name
  • [MBS-3453] – “Related works” on recordings page shows same work and AR set twice if there are two work<->recording ARs for the same work/recording pair
  • [MBS-3464] – Do not redirect http://www.musicbrainz.org to musicbrainz.org for /ws requests


  • [MBS-1914] – Run script to remove “later/earlier release of” ARs


  • [MBS-2669] – Filter edits by language
  • [MBS-2670] – Filter edits by artist country

The Git tag for this release is v-2011-09-21-ngs-bug-fixes. Happy editing!

NGS Bug fixes, 2011-08-22

Here’s what we got fixed in the last week!


  • [MBS-1928] – Missing artist roles in works page
  • [MBS-2035] – Cancelling/rejecting a medium will leave release in an unkown state
  • [MBS-2600] – Spurious "artist credit field is required" errors with recording edits
  • [MBS-2756] – ‘Guess Case’ too aggressive on word ‘Trance’
  • [MBS-2881] – Editing CD Baby URLs behaves weirdly
  • [MBS-2973] – Edit Medium can re-associate recordings behind your back
  • [MBS-2976] – Edit tracklist edit doesn’t link to new recordings
  • [MBS-3002] – Edit search crashes if any arguments are removed
  • [MBS-3009] – View transclusion edit history link is broken
  • [MBS-3012] – Exception trying to submit a decimal rating
  • [MBS-3017] – Edit failed dependency by MotBot for no obvious reason
  • [MBS-3071] – Edit search crashes with no search conditions
  • [MBS-3141] – Can’t select criterias in edit search
  • [MBS-3199] – Changing an artist on a tracklist to an artist with the same (credited) name is an auto-edit
  • [MBS-3213] – When removing tracks from a release, artist credits are erroneously listed as part of the edit
  • [MBS-3214] – ModBot failed dependency because of a non-existing artist but the artist was not edited
  • [MBS-3231] – When entering a CD stub there are no checks for field length
  • [MBS-3244] – Errors submitting data via the web service to test.musicbrainz.org
  • [MBS-3245] – 500 Internal Server Error when submitting release ratings via the web service
  • [MBS-3247] – Show recording artist in Remove ISRC edits
  • [MBS-3252] – Internal Server Error in edit search (Artist is in my subscriptions / Status Open)
  • [MBS-3253] – Edit search displays the same edit multiple times
  • [MBS-3254] – Internal Server Error in edit search when "My vote" is unselected
  • [MBS-3256] – Unable to move a disc id between CDs in the same release
  • [MBS-3257] – Searching by TOC fails for mediums which have no format
  • [MBS-3258] – column width in opera too small
  • [MBS-3262] – ws/2 returning invalid xml
  • [MBS-3265] – Webservice not escaping "<<" properly


  • [MBS-2232] – Auto-approve Add Medium and Add Release Label edits for new releases
  • [MBS-2839] – Artist work list > Better design: don’t split by "categories" (composer, lyricist, …) and indicates artist role for each artist related to work

NGS bug fixes, 2011-08-08

Apologies for the day late release, but here’s the latest installment of bug fixes and improvements now live on the main website:


  • [MBS-1847] – Work aliases not included in XML
  • [MBS-1849] – Alias locales not included in the XML
  • [MBS-1977] – ModBot is unable to close some edits
  • [MBS-2140] – Recordings automatically changed when editing release with CD+DVD with same track names
  • [MBS-2193] – "Failed" total on a user page includes edits canceled after NGS
  • [MBS-2246] – Cannot use "Change track artists" checkbox to change all track artists to same as release artist
  • [MBS-2306] – ws2 implementation doesn’t return discids with discid queries
  • [MBS-2365] – Adding a release as Various Artist it dosen’t add ask for adding new artists
  • [MBS-2632] – Ratelimit should cover all of /ws
  • [MBS-2819] – Edit URL edits have incorrect links
  • [MBS-2886] – WebService Internal error on inc parameter
  • [MBS-3043] – Release editor allows "null" as recording id in tracklist edits
  • [MBS-3103] – Changing alias locales is an auto-edit for regular editors
  • [MBS-3115] – Server error during submission of CD Stub for which there is already a disc ID
  • [MBS-3129] – Some set track lengths edits have no lengths shown
  • [MBS-3133] – inc=release-groups+type with release lookup throws error
  • [MBS-3137] – Label country not shown on relationships page
  • [MBS-3147] – Cover art script not working properly
  • [MBS-3162] – Direct Search is unable to find artists, even when exactly matched
  • [MBS-3166] – Error messages (from RE in particular) could be more helpful for users and developers
  • [MBS-3172] – POSTs are getting cancelled for taking more than 30 seconds of time
  • [MBS-3190] – "Remove work" edit type doesn’t apply


  • [MBS-3013] – Guess Case should capitalize some words that are usually lowercase if they are followed by punctuation.
  • [MBS-3015] – ModBot’s "Remove Work" edits should be autoedits.

New Feature


  • [MBS-2772] – Filter by vote cast
  • [MBS-3004] – Search for subscribed artists (has been currently dropped)

Schema change release, 2011-07-11

Today we released our first schema change update since NGS. This change is quite a radical one, as it merges both of our databases (“READWRITE” and “RAWDATA”) into a single database. For most users of the database, this probably won’t affect you, but you’re encouraged to run the upgrade process anyway. Here’s what you need to do:

  1. Take down the web server running MusicBrainz, if you’re running a web server.
  2. Turn off cron jobs if you are automatically updating the database via cron jobs.
  3. Set DB_SCHEMA_SEQUENCE to 13 in lib/DBDefs.pm
  4. Make sure your REPLICATION_TYPE setting is RT_SLAVE
  5. Switch to the new code with git fetch origin followed by git checkout v-20110711-schema-change
  6. Run ./upgrade.sh from the top of the source directory.
  7. Install the perl modules Algorithm::Merge and Algorithm::Diff
  8. Turn cron jobs back on, if needed.
  9. Restart the MusicBrainz web server, if needed.

This process may take a while, as it has to dump one database into another, and download a few extra changes to ensure slaves aren’t missing any data. The RAWDATA database should no longer be in use and you should be able to drop it, but waiting to see that everything is working well might be a good idea.

This schema change does not introduce any new data. For everyone else, here’s a list of what got fixed since the last release!


  • [MBS-1977] – ModBot is unable to close some edits
  • [MBS-1979] – Unable to edit a “later translated versions” relationship with change direction
  • [MBS-2026] – Subscribed artists open edits won’t load for editors with large amounts of subscriptions
  • [MBS-2442] – MB postgres unaccent extension overwrites unaccent.so library shipped with postgres-contrib
  • [MBS-2689] – Timeline isn’t working in Opera 10
  • [MBS-2698] – Some tables are not replicated through Live data feed
  • [MBS-2812] – Adding track times has caused a failed dependency for an edit which changed the track titles.
  • [MBS-2826] – Web service returns malformed XML (not escaped properly)
  • [MBS-2831] – “Edit medium” edit display: Artist credits changes are incorrect
  • [MBS-2974] – I don’t receive e-mail when someone votes no to my edit any more
  • [MBS-2981] – Changing the case of recording comments should be auto-edits
  • [MBS-2986] – tracklist_index was not populated during NGS
  • [MBS-2995] – Caught exception in MusicBrainz::Server::Controller::WS::2::ReleaseGroup->release_group_browse “Can’t call method “format”


  • [MBS-1500] – Remove tracklist_index.tracks
  • [MBS-1707] – Advanced tracklist in RE: “Title” to “Disc title”
  • [MBS-2242] – Disable editing of Medium title when there’s only one medium
  • [MBS-2434] – Combine READWRITE and RAWDATA
  • [MBS-2462] – Other edit types that don’t highlight what has changed between old and new values
  • [MBS-2583] – “Edit Medium” should show you which medium is being edited with respect to the overall release
  • [MBS-2767] – Release-group XML result should include first release date