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From Emir Arnautović <>
Subject Re: External file fields
Date Fri, 02 Feb 2018 15:59:21 GMT
Hi Brian,
You should be able to sort on field with only sorted values.

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> On 2 Feb 2018, at 16:53, Brian Yee <> wrote:
> 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 [] 
> Sent: Thursday, February 1, 2018 5:00 PM
> To: solr-user <>
> Subject: Re: External file fields
> Have you considered updateable docValues?
> Best,
> Erick
> On Thu, Feb 1, 2018 at 10:55 AM, Brian Yee <> 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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