Hello Erick,

I did look into updatable docValues, but my understanding is that the field has 
to be non-indexed (indexed="false"). I need to be able to sort on these values. 
External field fields are sortable.

-----Original Message-----
From: Erick Erickson [mailto:erickerick...@gmail.com] 
Sent: Thursday, February 1, 2018 5:00 PM
To: solr-user <solr-user@lucene.apache.org>
Subject: Re: External file fields

Have you considered updateable docValues?


On Thu, Feb 1, 2018 at 10:55 AM, Brian Yee <b...@wayfair.com> wrote:
> Hello,
> I want to use external file field to store frequently changing inventory and 
> price data. I got a proof of concept working with a mock text file and this 
> will suit my needs.
> What is the best way to keep this file updated in a fast way. Ideally I would 
> like to read changes from a Kafka queue and write to the file. But it seems 
> like I would have to open the whole file, read the whole file, find the line 
> I want to change, and write the whole file for every change. Is there a 
> better way to do that? That approach seems like it would be difficult/slow if 
> the file is several million lines long.
> Also, once I come up with a way to update the file quickly, what is the best 
> way to distribute the file to all the different solrcloud nodes in the 
> correct directory?

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