Does storing _source effect facet performance?

Elastic Stack Elasticsearch
1

Hi,

I read that enabling _source will increase the amount of storage an index
takes on disk but does it also effect performance of facets in any way?
Apart from performance, does it take more memory in RAM? I want to confirm
if storing _source effects size of filter or field cache. Just a note, we
just want to use this index for facet calculations and nothing else.

Thanks!
Vinay

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2

Hi,

_source won't affect faceting performance.

Otis

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On Thursday, May 2, 2013 2:08:49 PM UTC-4, revdev wrote:

Hi,

I read that enabling _source will increase the amount of storage an index
takes on disk but does it also effect performance of facets in any way?
Apart from performance, does it take more memory in RAM? I want to confirm
if storing _source effects size of filter or field cache. Just a note, we
just want to use this index for facet calculations and nothing else.

Thanks!
Vinay

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3

Thanks Otis!

On Thu, May 2, 2013 at 11:17 AM, Otis Gospodnetic <
otis.gospodnetic@gmail.com> wrote:

Hi,

_source won't affect faceting performance.

Otis

Search Analytics - http://sematext.com/search-analytics/index.html
ELASTICSEARCH Performance Monitoring - http://sematext.com/spm/index.html

On Thursday, May 2, 2013 2:08:49 PM UTC-4, revdev wrote:

Hi,

I read that enabling _source will increase the amount of storage an index
takes on disk but does it also effect performance of facets in any way?
Apart from performance, does it take more memory in RAM? I want to confirm
if storing _source effects size of filter or field cache. Just a note, we
just want to use this index for facet calculations and nothing else.

Thanks!
Vinay

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4