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From Apache Wiki <wikidi...@apache.org>
Subject [Jackrabbit Wiki] Update of "Clustering" by ThomasMueller
Date Fri, 13 Feb 2009 11:13:28 GMT
Dear Wiki user,

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The following page has been changed by ThomasMueller:
http://wiki.apache.org/jackrabbit/Clustering

------------------------------------------------------------------------------
  
  === Persistence manager configuration ===
  
- For performance reasons, only information identifying the modified items is stored in the
journal. This implies, that all cluster nodes must have access to the items' actual content.
Since file system based persistence managers are not transactional, one has to use persistence
managers storing their data in a database running standalone. The following sample shows a
workspace's persistence manager configuration using an Oracle database:
+ For performance reasons, only information identifying the modified items is stored in the
journal. This implies, that all cluster nodes must have access to the items' actual content.
The persistence manager needs to be transactional, and need to support concurrent access from
multiple processes. When using Jackrabbit, one option is to use a database persistence manager,
and use a database that does support concurrent access. The file system based persistence
managers in Jackrabbit are not transactional and don't support concurrent access; Apache Derby
doesn't support concurrent access in the embedded mode. The following sample shows a workspace's
persistence manager configuration using an Oracle database:
  
  {{{
  <PersistenceManager class="org.apache.jackrabbit.core.persistence.db.OraclePersistenceManager">

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