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From "Cedric Ho" <>
Subject Re: Distributed Indexes
Date Mon, 11 Feb 2008 02:04:02 GMT
On Feb 9, 2008 12:07 AM, Ruslan Sivak <> wrote:
> The app does other things then search the index.  I'm basically using
> ColdFusion for the website and have four instances running on two
> servers for load balancing.  Each app does the searches, and the search
> times are small, the index is small, but it takes a long time to fully
> create the index (several minutes), and I would like the index to always
> be up to date (which is why i replicate the changes).
> I basically cache the index for several minutes in a RamDirectory, which
> works quite well for performance.  If I could store the index in a SQL
> Table or something, I can have a single place where the index lives and
> atomic updates.
> Is there a SQL Backend for the index, or should I just take the
> RamDirectory, serialize it and store it as a BLOB?

Can't you just store the index on a shared network file system? so all
the copies of your app can access it?
And load the index into a RamDirectory when need to do searching on it ?


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