Dear Lindsey,

we have observed situations where substantial changes/optimizations are
required in the Discovery search index, when you get into the hundreds (and
especially thousands) of metadata values in a single field.
We've seen this in the authors and in the subject fields.

Here is an example where the decision was made to cap author lists at 100
authors max
https://repository.arizona.edu/handle/10150/628683

There is no actual cap, but as a rule of thumb, you may see performance
degradation or other side effects if you start going over 100 values for
the same metadata field, again, especially authors and subjects.

with kindest regards,

Bram

[image: logo] Bram Luyten
250-B Suite 3A, Lucius Gordon Drive, West Henrietta, NY 14586
Gaston Geenslaan 14, 3001 Leuven, Belgium
atmire.com
<http://atmire.com/website/?q=services&utm_source=emailfooter&utm_medium=email&utm_campaign=braml>


On Wed, 19 Feb 2020 at 13:37, Lindsey Passenger Wieck <[email protected]>
wrote:

> Hi everyone,
>
> Is there a maximum number of items that you can have in a metadata field?
> Is this different than the bulk import maximum?
>
> Thanks in advance!
>
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