What is your data model?
It seems you could live with search on a single field only.
Then I conclude why not use key/value stream, search on value, and use
highlighting for looking up the key(s) in the result doc?
{
"key" : "...",
"value" : "..."
}
Jörg
On Sun, Apr 27, 2014 at 1:15 PM, Daniel Winterstein <
[email protected]> wrote:
> Hello,
>
> I have a case where each document is likely to introduce some specific
> & often unique properties -- leading to millions or more fields.
> The values stored under these should be searchable. But the mapping
> structure itself is not used in queries.
>
> Having ElasticSearch treat these as dynamic fields works -- but how
> well does ElasticSearch cope with very large mappings?
>
> Am I right in thinking each property adds a field to the mapping,
> which is shared & held in memory by all nodes?
> So a mapping can become too large, and create performance issues. E.g
> 100 million documents might lead to gigabytes of ram locked up
> modelling the mapping.
> Is that correct?
>
> You can switch off dynamic fields altogether -- but then I think the
> content stored within them becomes unsearchable.
> Is there a way to have dynamic fields accessible to search, without
> modelling them as part of the mapping?
>
> Thank you &
> Best regards,
> - Daniel
>
> --
> Dr Daniel Winterstein
> Director
>
> A: CodeBase Argyle House, Edinburgh, EH3 9DR
> M: +44 (0)772 5172 612
> http://winterwell.com http://sodash.com
>
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