# Source : compression has no effect

**URL:** <https://discuss.elastic.co/t/source-compression-has-no-effect/5071>\
**Category:** Elasticsearch\
**Created:** [August 5, 2011, 7:17pm UTC](https://discuss.elastic.co/t/source-compression-has-no-effect/5071 "2011-08-05T19:17:33Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Anurag\_Phadke](https://avatars.discourse-cdn.com/v4/letter/a/5f9b8f/32.png) [@Anurag\_Phadke](https://discuss.elastic.co/u/Anurag_Phadke)\
**Post date:** [August 5, 2011, 7:17pm UTC](https://discuss.elastic.co/t/source-compression-has-no-effect/5071/1 "2011-08-05T19:17:33Z")

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I ran two different tests on ES 0.17.3, without compression and one by  
setting the compress: flag as true.

curl -XPUT localhost:9200/\_settings -d '{  
"crash\_reports" : {  
"\_source" : {"compress" : true}  
}  
}'

and then indexing 300K docs

Doing a du -sh /data1/elasticsearch got me the same size in both the  
test runs. Am I missing something out here?

---

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**Author:** ![kimchy](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/kimchy/32/44952_2.png) [@kimchy](https://discuss.elastic.co/u/kimchy)\
**Post date:** [August 5, 2011, 8:01pm UTC](https://discuss.elastic.co/t/source-compression-has-no-effect/5071/2 "2011-08-05T20:01:52Z")

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Whats your typical document looks like? Basically, an index is comprised of  
a lot of data, part of it is the stored source.

On Fri, Aug 5, 2011 at 10:17 PM, Anurag [anurag.phadke@gmail.com](mailto:anurag.phadke@gmail.com) wrote:

> I ran two different tests on ES 0.17.3, without compression and one by  
> setting the compress: flag as true.
> 
> curl -XPUT localhost:9200/\_settings -d '{  
> "crash\_reports" : {  
> "\_source" : {"compress" : true}  
> }  
> }'
> 
> and then indexing 300K docs
> 
> Doing a du -sh /data1/elasticsearch got me the same size in both the  
> test runs. Am I missing something out here?

---

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**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [July 6, 2017, 3:58am UTC](https://discuss.elastic.co/t/source-compression-has-no-effect/5071/3 "2017-07-06T03:58:08Z")

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