Re: question about search indexes and clusters

Thanks a lot

just to make sure I fully understand, 
can you please confirm/complete the following scenario:

Scenario:

server1/Jahia1 and server2/Jahia2 are clustered
Jahia1: configured for no indexation
Jahia2: configured for indexation

When a file(PDF) is uploaded on Jahia1, a JMS message is sent to Jahia2 to index the PDF.
Jahia2 indexes the PDF...
Question 1: How does it access the PDF?

After Jahia2 finishes the indexation, it sends a JMS message to Jahia1 to update the index, so
that users can search  on Jahia1??

Thanks
Gilles


 --- Khue Nguyen <[email protected]> a écrit : 
> the search engine uses the clustering capacities of Jahia's cache system ( 
> using JMS ) to propagate search indexation between all clustered Jahia 
> servers.
> So when a file upload occurs on a server that actually doesn't index files, 
> the other clusters will ( as long as they are set to do so ).
> 
> 
> Regards,
> Khue Nguyen
> 
> 
> 
> ----- Original Message ----- 
> From: "Gilles Schlienger" <[email protected]>
> To: <[email protected]>
> Sent: Friday, January 14, 2005 9:18 PM
> Subject: Re: question about search indexes and clusters
> 
> 
> > Thanks Khue
> >
> > I understand what you mean,
> > but what happens if a user is uploading a file using the server that does 
> > not index files?
> > Or, how do you force users to upload files using only one server?
> > If the file is not indexed, you can't search it?
> >
> > Thanks
> > Gilles
> >
> > --- Khue Nguyen <[email protected]> a écrit :
> >> 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
> >> >
> >> >
> >> >
> >> >
> >> >
> >> >
> >> > Découvrez le nouveau Yahoo! Mail : 250 Mo d'espace de stockage pour vos
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> >>
> >>
> >>
> >
> >
> >
> >
> >
> >
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> 
> 
>  


	

	
		
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