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From Apache Wiki <wikidi...@apache.org>
Subject [Jackrabbit Wiki] Update of "Clustering" by AlexanderKlimetschek
Date Fri, 03 Jul 2009 16:43:13 GMT
Dear Wiki user,

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

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- Clustering in Jackrabbit works as follows: content is shared between all cluster nodes.
That means all Jackrabbit cluster nodes need access to the SAME persistent storage (persistence
manager and data store). However, each cluster node needs its own (private) FileSystem and
["Search"] index.
+ Clustering in Jackrabbit works as follows: content is shared between all cluster nodes.
That means all Jackrabbit cluster nodes need access to the SAME persistent storage (persistence
manager and data store). The [PersistenceManagerFAQ persistence manager] must be clusterable
(eg. central database that allows for concurrent access); any DataStore (file or DB) is clusterable
by its very nature, as they store content by unique hash ids. However, each cluster node needs
its own (private) FileSystem and ["Search"] index.
  
  Every change made by one cluster node is reported in a journal, which can be either file
based or written to some database.
  

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