#musicbrainz-devel

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      • ijabz
        luks: hi do you know why track searches by puid use the database ( http://bugs.musicbrainz.org/ticket/5289 )
      • luks
        ijabz: probably for performance reasons
      • ijabz
        do you think that still stands, I would like to move it into to the track_index
      • luks
        yes, the search servers are overloaded, the database server is not
      • I think track_index is large enough already
      • but you should wait for ruaok
      • ijabz
        Yeah sure, I didnt think should be done as part of the search rewite anyway, but thought could possibly go into NGS release
      • luks
        I think there is enough PUIDs to double the size of the track index
      • ijabz
        II'll need to run a performance test without/without puids to see how they impact a track search
      • luks
        how does it affect PUID lookup is also an important test
      • it's the most often used code in MB, as the comment in the source code says
      • ijabz
        where do you mean ?
      • luks
        how fast are DB-based vs Lucene-based PUID lookups
      • MBChatLogger
        luks probably meant ' PUID lookups are what generates the most http hits to musicbrainz.org '
      • luks
        PUID lookups are what generates the most http hits to mb.org
      • ijabz is confused
      • ijabz
        only talking about finding track by puid, not looking up an individual puid
      • luks
        yes, that's why I'm talking about, too
      • what
      • ijabz
        ok,, yes would want search over lucene to as quick as search by database, thats harder to measure because you would be interested in this test with production setup which would be more difficult to test
      • But my first test would at least indicate if adding puid to track index had much of a negative effect on the track indexing as a whole
      • luks
        you can't correctly measure that
      • if you have twice as much data in the index, and maybe 10 as many requests, the disk will have to seek around the disk much more often
      • which will cause regular track searches to be slower
      • and even other lucene searches
      • ijabz
        ok, I get your point
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