History:Database Installation: Difference between revisions

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(adding help regarding branches)
m (Hack to get the <pre>s inside the <li>s properly.)
Line 11: Line 11:
: ''(Here mbrainz is the UNIX user I'm running as; <code><nowiki>musicbrainz_user</nowiki></code> is the PostgreSQL user I connect as; <code><nowiki>importtest</nowiki></code> is the database I'm setting up).''
: ''(Here mbrainz is the UNIX user I'm running as; <code><nowiki>musicbrainz_user</nowiki></code> is the PostgreSQL user I connect as; <code><nowiki>importtest</nowiki></code> is the database I'm setting up).''


# '''Create the empty database:'''
<ol><li> '''Create the empty database:'''
<pre>mbrainz$ createdb -U postgres --owner=musicbrainz_user
<pre>mbrainz$ createdb -U postgres --owner=musicbrainz_user
--encoding=UNICODE importtest
--encoding=UNICODE importtest
CREATE DATABASE
CREATE DATABASE
mbrainz$</pre>
mbrainz$</pre>

#<li value=2> '''Create the empty tables:'''
<li> '''Create the empty tables:'''
<pre>mbrainz$ psql -U musicbrainz_user importtest
<pre>mbrainz$ psql -U musicbrainz_user importtest
Welcome to psql 7.4.8, the ["PostgreSQL"] interactive terminal.
Welcome to psql 7.4.8, the ["PostgreSQL"] interactive terminal.
Line 31: Line 32:
CREATE TABLE...COMMIT
CREATE TABLE...COMMIT
importtest=> \q
importtest=> \q
mbrainz$</pre>
mbrainz$</pre></li>

#<li value=3> '''Decompress the mbdump*.tar.bz2 files:'''
<li> '''Decompress the mbdump*.tar.bz2 files:'''
<pre>mbrainz$ tar jxf /path/to/mbdump.tar.bz2</pre>
<pre>mbrainz$ tar jxf /path/to/mbdump.tar.bz2</pre>
(repeat for the other files too)
(repeat for the other files too) </li>

#<li value=4> '''Import each file into the database:'''
<li> '''Import each file into the database:'''
<pre>mbrainz$ cd mbdump/
<pre>mbrainz$ cd mbdump/
mbrainz$ mkdir ../done
mbrainz$ mkdir ../done
Line 44: Line 47:
Sun Jun 5 19:51:06 BST 2005 url
Sun Jun 5 19:51:06 BST 2005 url
Sun Jun 5 19:51:09 BST 2005 Done
Sun Jun 5 19:51:09 BST 2005 Done
mbrainz$ cd ..</pre>
mbrainz$ cd ..</pre></li>

#<li value=5> '''Add primary keys and indexes, and optimise the database:'''
<li> '''Add primary keys and indexes, and optimise the database:'''
<pre>mbrainz$ psql -U musicbrainz_user importtest
<pre>mbrainz$ psql -U musicbrainz_user importtest
Welcome to psql 7.4.8, the ["PostgreSQL"] interactive terminal.
Welcome to psql 7.4.8, the ["PostgreSQL"] interactive terminal.
Line 68: Line 72:
importtest=> VACUUM ANALYZE;
importtest=> VACUUM ANALYZE;
importtest=> \q
importtest=> \q
mbrainz$</pre>
mbrainz$</pre></li></ol>


That's it! If you want to, you could also choose to add the views ([http://bugs.musicbrainz.org/browser/mb_server/trunk/admin/sql/CreateViews.sql CreateViews.sql]). In fact since we're not running [http://bugs.musicbrainz.org/browser/mb_server/trunk/admin/sql/CreateFKConstraints.sql CreateFKConstraints.sql], the import is fairly quick too. If you wanted it even quicker, you might want to do without some of the indexes, and just add the ones you think you need.
That's it! If you want to, you could also choose to add the views ([http://bugs.musicbrainz.org/browser/mb_server/trunk/admin/sql/CreateViews.sql CreateViews.sql]). In fact since we're not running [http://bugs.musicbrainz.org/browser/mb_server/trunk/admin/sql/CreateFKConstraints.sql CreateFKConstraints.sql], the import is fairly quick too. If you wanted it even quicker, you might want to do without some of the indexes, and just add the ones you think you need.

Revision as of 17:47, 4 January 2010

Products > Database > Database setup > Database setup on Linux

If you just want the data in a database, and you don't want Apache etc., here's another method.

  • It is more flexible (you can choose not to bother creating the foreign key constraints, for example)
  • It has fewer prerequisites (you do not need Perl, nor any of the Perl modules, nor postgresql-devel)
  • However it is a bit more "hands on" - you have to check each step for errors yourself, and the import is about 10 or so commands instead of just one.

Here's the method:

Install the base system. Install PostgreSQL (you need both the server and the client, if your system provides them separately). Install bzip2 and Subversion. Checkout the MusicBrainz Server from Subversion, and download the MusicBrainz Database dumps, please make sure their revision matches [1]. Configure postgresql the way you want it.

(Here mbrainz is the UNIX user I'm running as; musicbrainz_user is the PostgreSQL user I connect as; importtest is the database I'm setting up).
  1. Create the empty database:
    mbrainz$ createdb -U postgres --owner=musicbrainz_user
    --encoding=UNICODE importtest
    CREATE DATABASE
    mbrainz$
  2. Create the empty tables:
    mbrainz$ psql -U musicbrainz_user importtest
    Welcome to psql 7.4.8, the ["PostgreSQL"] interactive terminal.
    Type:  \copyright for distribution terms
           \h for help with SQL commands
           \? for help on internal slash commands
           \g or terminate with semicolon to execute query
           \q to quit
    
    importtest=> \i admin/sql/CreateTables.sql
    BEGIN
    psql:admin/sql/CreateTables.sql:31: NOTICE:  CREATE TABLE will create
    implicit sequence "album_id_seq" for "serial" column "album.id"
    CREATE TABLE...COMMIT
    importtest=> \q
    mbrainz$
  3. Decompress the mbdump*.tar.bz2 files:
    mbrainz$ tar jxf /path/to/mbdump.tar.bz2
    (repeat for the other files too)
  4. Import each file into the database:
    mbrainz$ cd mbdump/
    mbrainz$ mkdir ../done
    mbrainz$ for t in * ; do echo `date` $t ; echo "\\copy $t from ./$t" |
    psql -U musicbrainz_user importtest && mv $t ../done/ ; done ; echo `date` Done
    Sun Jun 5 19:46:22 BST 2005 album
    ....
    Sun Jun 5 19:51:06 BST 2005 url
    Sun Jun 5 19:51:09 BST 2005 Done
    mbrainz$ cd ..
  5. Add primary keys and indexes, and optimise the database:
    mbrainz$ psql -U musicbrainz_user importtest
    Welcome to psql 7.4.8, the ["PostgreSQL"] interactive terminal.
    Type:  \copyright for distribution terms
           \h for help with SQL commands
           \? for help on internal slash commands
           \g or terminate with semicolon to execute query
           \q to quit
    
    importtest=> \i admin/sql/CreatePrimaryKeys.sql
    NOTICE:  ALTER TABLE / ADD PRIMARY KEY will create implicit index "album_pkey" for table "album"
    ALTER TABLE
    ...NOTICE:  ALTER TABLE / ADD PRIMARY KEY will create implicit index "wordlist_pkey" for table "wordlist"
    ALTER TABLE
    
    importtest=> \i admin/sql/CreateIndexes.sql
    CREATE INDEX
    CREATE INDEX
    ...
    CREATE INDEX
    CREATE INDEX
    importtest=> VACUUM ANALYZE;
    importtest=> \q
    mbrainz$

That's it! If you want to, you could also choose to add the views (CreateViews.sql). In fact since we're not running CreateFKConstraints.sql, the import is fairly quick too. If you wanted it even quicker, you might want to do without some of the indexes, and just add the ones you think you need.

If you're planning on writing to the database (instead of just querying from it), you might also want to set the correct sequence values (left as an exercise for the reader) and run CreateFKConstraints.sql, CreateFunctions.sql, and CreateTriggers.sql.

~- This information on installing the MusicBrainz Database was by DaveEvans in response to DebianVMWareDatabase (see original post).

This method has been reported to work on a Macintosh.

Notes

  1. You should checkout the subversion revision from branches/RELEASE_..., do not checkout the svn trunk/