Re: question about search indexes and clusters

Hi,


by default each Jahia instance do index and search in a separate index file.
But you can configure each of them to :

1) only search but no perform indexation
2) to use a common search index

These settings are done in the web.xml file of each Jahia instance.

<init-param>
 <param-name>org.apache.lucene.searchIndexRootDir</param-name>
  <!-- to point to a common search index ( but only one Jahia instance 
should run indexation -->
 <param-value>/WEB-INF/var/search_indexes</param-value>
</init-param>

<init-param>
 <param-name>org.apache.lucene.localIndexing</param-name>
 <param-value>1</param-value> <!-- 1: allow local indexing, 0: do not 
index -->
</init-param>

we've managed to refactor the search service in near future.


Regards,
Khue Nguyen



----- Original Message ----- 
From: "Gilles Schlienger" <[email protected]>
To: <[email protected]>
Sent: Friday, January 14, 2005 3:50 PM
Subject: question about search indexes and clusters


> Hi everyone,
>
> I'm currently setting up Jahia in a cluster environment with 2 Jahia 
> servers.
>
> I need failover support in my architecture. Thus I need to have data 
> duplicated on both servers.
> I'm thinking about implementing a mechanism to notify and synchronize the 
> other machine and vice
> versa, especially for the Jahia files (Big Text, PDFs etc...)
>
> But what about the search indexes?
> I'm a little nervous about synchronizing index files.
> I'm thinking about this scenario:
> Since indexing a file (PDF) can take some time, if user1 indexes a PDF on 
> server1 and user2
> idnexes a PDF on server2 almost at the same time, then index files could 
> be overriden one with the
> other during synchronisation.
>
> I've read the Jahia Clustering HowTo. They talk about only having one 
> Jahia instance for indexing,
> ut how do you implement this? (do you configure with the Lucene config 
> files ?)
>
> Thanks again for any help about clustering
> Gilles
>
>
>
>
>
>
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