Wiki source code of InstallationDB2
Version 2.6 by Vincent Massol on 2008/03/06
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| author | version | line-number | content |
|---|---|---|---|
| 1 | 1 DB2 Installation | ||
| 2 | |||
| 3 | #info("This has been tested only on DB2 8.2 and DB2 9") | ||
| 4 | #warning("Case-insensitive search does not work with this database; see below for more info. You may want to use the the [Lucene search>code:Applications.SearchApplication]") | ||
| 5 | |||
| 6 | 1.1 Create the xwiki user | ||
| 7 | |||
| 8 | * This is OS-dependent. Use your favorite tool to create an OS-level user named 'xwiki'. | ||
| 9 | * Set xwiki's password to 'xwiki'. | ||
| 10 | |||
| 11 | 1.1 Create the xwiki database | ||
| 12 | |||
| 13 | * First make sure your database instance width matches the JVM. If you have a 32-bit JVM you need a 32-bit instance. 64-bit JVM requires a 64-bit instance. If they don't match, you will get an UnsatisfiedLinkError when first talking to XWiki. | ||
| 14 | * Open a DB2 Command Line Processor, either via typing 'db2' or on Windows choosing Start > All Programs > IBM DB2 > Command Line Tools > Command Line Processor. This will give you a command prompt 'db2 =>'. | ||
| 15 | * Create a database with the following: | ||
| 16 | {code} | ||
| 17 | db2 => create database xwiki | ||
| 18 | {code} | ||
| 19 | * Connect to the database to continue configuration | ||
| 20 | {code} | ||
| 21 | db2 => connect to xwiki | ||
| 22 | {code} | ||
| 23 | * Create a 32K bufferpool and tablespace; this is required because of the length of the rows in a couple of the XWiki tables | ||
| 24 | {code} | ||
| 25 | db2 => create bufferpool BFP32K immediate size 1024 pagesize 32k | ||
| 26 | db2 => create regular tablespace TSXWIKI pagesize 32k managed by system using ('/some/directory/cntr_xwiki') bufferpool BFP32K | ||
| 27 | {code} | ||
| 28 | * Grant privileges to the xwiki user | ||
| 29 | {code} | ||
| 30 | db2 => grant connect, createtab, implicit_schema on database to user xwiki | ||
| 31 | db2 => grant use of tablespace TSXWIKI to user XWIKI | ||
| 32 | {code} | ||
| 33 | * Reset connections and quit | ||
| 34 | {code} | ||
| 35 | db2 => connect reset | ||
| 36 | db2 => quit | ||
| 37 | {code} | ||
| 38 | |||
| 39 | 1.1 XWiki configuration | ||
| 40 | |||
| 41 | * Ensure $INSTHOME/sqllib/lib is in your library path. This is something like $LIBPATH, depending on your OS. | ||
| 42 | * Copy the following files from your DB2 installation directory to the xwiki lib directory: | ||
| 43 | ** $INSTHOME/sqllib/java/db2jcc.jar | ||
| 44 | ** $INSTHOME/sqllib/java/db2jcc_license_cu.jar | ||
| 45 | * Tell XWiki to use DB2. To do this, edit the ~~WEB-INF/hibernate.cfg.xml~~ file where you have expanded the XWiki WAR file. Replace the matching properties with the following ones (or uncomment them if they are present): | ||
| 46 | {code} | ||
| 47 | <property name="connection.url">jdbc:db2:xwiki</property> | ||
| 48 | <property name="connection.username">xwiki</property> | ||
| 49 | <property name="connection.password">xwiki</property> | ||
| 50 | <property name="connection.driver_class">com.ibm.db2.jcc.DB2Driver</property> | ||
| 51 | <property name="dialect">org.hibernate.dialect.DB2Dialect</property> | ||
| 52 | <property name="connection.pool_size">2</property> | ||
| 53 | <property name="statement_cache.size">2</property> | ||
| 54 | |||
| 55 | <mapping resource="xwiki.db2.hbm.xml"/> | ||
| 56 | <mapping resource="feeds.hbm.xml"/> | ||
| 57 | {code} | ||
| 58 | * The file ~~xwiki.db2.hbm.xml~~ is not currently shipped with XWiki, so it must be added to the installation. The easiest way to do this is to create the file as ~~WEB-INF/classes/xwiki.db2.hbm.xml~~ (creating the ~~classes~~ directory if needed) and restarting XWiki. | ||
| 59 | |||
| 60 | 1.1 Make search case-insensitive | ||
| 61 | |||
| 62 | If you try to do a search, via [Main.WebSearch], you will get a big DB2 SQLException with SQLCODE: -440. This is caused because the UPPER() function only works for columns with 250 bytes of data or so in it. Since XWiki calls UPPER() for an entire CLOB column, this just doesn't work. The only solution I have found is to remove all the calls to upper() in [Main.WebSearch]. | ||
| 63 | |||
| 64 | Alternatively, you may want to examine the [Lucene search>code:Applications.SearchApplication]. |
