On Thu, Dec 07, 2006 at 08:01:34PM +0100, Andreas Korth wrote:
> 
> On 07.12.2006, at 19:19, Raymond O'connor wrote:
> 
> > I may be a special case since my index is never updated through my
> > frontend app, but I was planning on keeping one "gold" index on a
> > backend server and update this index through a script whenever  
> > there are
> > updates to my documents (about once a week in my case).  This server
> > will update the index and then do basically a cp to the frontend
> > webservers and copy over the old indexes on each of these machines.
> > What do people think of this solution?  The searchable drb solution
> > looks interesting though and I may consider it if I run into issues
> > doing it this way.
> 
> If updates happen so rarely, this might be a feasible solution. At  
> least, it involves less moving parts than an indexing server would  
> and it's faster than querying a remote server. I'm not sure, however,  
> if Ferret would like it if the index files are overwritten during a  
> read operation. You could write a capistrano recipe which shuts down  
> your app, updates the index files and restarts it afterwards.  
> Depending on the size of your index, this involves downtimes of a few  
> seconds which is certainly tolerable.

I'd suggest to swap out the whole index directory at once (something
like 'mv index index.old && mv index.new index') and then
re-open the Searcher. at least on unix/linux that should work without 
downtime.


Jens

-- 
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