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From "Erick Erickson" <erickerick...@gmail.com>
Subject Re: Distributed Indexes
Date Thu, 07 Feb 2008 23:40:44 GMT
With an index that small, I wonder why you bother with so many copies?
What kind of load are you hitting it with and how complex are the queries?

Because unless you have *very* high query rate, I'd look at why my queries
were
taking so long before complexifying things this way.

Best
Erick

On Feb 7, 2008 4:52 PM, Ruslan Sivak <rsivak@istandfor.com> wrote:

> My index is only 4mb.  Is there a SQL backend for Lucene?
>
> Russ
>
> Michael McCandless wrote:
> >
> > If you're able to tell Windows FRS which specific files to copy, then
> > SnapshotDeletionPolicy (in 2.3) should work for this.
> >
> > It basically protects a consistent snapshot of your index, ensuring
> > those files will not be deleted, while not blocking further updates to
> > the index.
> >
> > Mike
> >
> > Ruslan Sivak wrote:
> >
> >> I'm wondering if this is a problem that lucene users have already
> >> tackled.  I have four copies of the application using a lucene
> >> index.  They are located on two physical servers with two copies on
> >> each server accessing two copies of the lucene index.  I use Windows
> >> FRS (File Replication Service) to replicate the index between the two
> >> servers.
> >> Things work well most of the time, but sometimes, I believe under
> >> load, the index doesn't get a chance to propagate before another
> >> write takes place and it gets corrupted.
> >> What would you recommend I use to keep the index in sync between the
> >> four copies of the app?
> >>
> >> Russ
> >>
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