Lance,
Thanks for the response.
Can I use an ExternalFileField as an input to a boost query?
For example, if I put the field "popularity" in an ExternalFileField, can I
still use "popularity" in a boosted query such as:
{!boost b=log(popularity)}foo
The doc says ExternalFileField can only be used in FunctionQuery. Does that
include a boost query like {!boost b=log(popularity)}?
--- On Sat, 8/28/10, Lance Norskog <[email protected]> wrote:
> From: Lance Norskog <[email protected]>
> Subject: Re: ExternalFileField best practices
> To: [email protected]
> Date: Saturday, August 28, 2010, 5:16 PM
> The file is completely reloaded when
> you commit or optimize. There is
> no incremental update available. And, yes, this could be a
> scaling
> problem.
>
> How you update it is completely external to Solr.
>
> On Sat, Aug 28, 2010 at 2:50 AM, Andy <[email protected]>
> wrote:
> > I'm interested in using ExternalFileField to store a
> field "popularity" that is being updated frequently.
> >
> > However ExternalFileField seems to be a pretty obscure
> feature. Have a few questions:
> >
> > 1) Can anyone share your experience using it?
> >
> > 2) What is the most efficient way to update the
> external file?
> > For example, the file could look like:
> >
> > 1=12 // the document with uniqueKey 1 has a
> popularity of 12//
> > 2=4
> > 3=45
> > 5=78
> >
> > Now the popularity of document 1 is updated to 13:
> >
> > - What is the best way to update the file to reflect
> the change? Isn't this an O(n) operation?
> > - How to deal with concurrent updates to the file by
> multiple threads?
> >
> > Would this method of using an external file scale?
> >
> > Thanks.
> >
> >
> >
> >
>
>
>
> --
> Lance Norskog
> [email protected]
>
