# Setting source compression on existing index not working **URL:** \ **Category:** Elasticsearch\ **Created:** [November 27, 2012, 8:52am UTC](https://discuss.elastic.co/t/setting-source-compression-on-existing-index-not-working/9839 "2012-11-27T08:52:14Z")\ **Posts on this page:** 5\ **Page:** 1
**Author:** ![T\_Vinod\_Gupta](https://avatars.discourse-cdn.com/v4/letter/t/fbc32d/32.png) [@T\_Vinod\_Gupta](https://discuss.elastic.co/u/T_Vinod_Gupta)\ **Post date:** [November 27, 2012, 8:52am UTC](https://discuss.elastic.co/t/setting-source-compression-on-existing-index-not-working/9839/1 "2012-11-27T08:52:14Z")
hi, i want to enable source compression on an existing test index. but i dont think my setting is working. can someone confirm - curl -XPUT '[http://localhost:9200/test/\_settings?pretty=true](http://localhost:9200/test/_settings?pretty=true)' -d '{"index" : { "\_source" : {"compress" : true } } }' { "ok" : true } curl -XGET '[http://localhost:9200/test/\_settings?pretty=true](http://localhost:9200/test/_settings?pretty=true)' { "test" : { "settings" : { "index.number\_of\_shards" : "5", "index.number\_of\_replicas" : "1", "index.refresh\_interval" : "60000" } } } -- ---
**Author:** ![Clinton\_Gormley](https://avatars.discourse-cdn.com/v4/letter/c/50afbb/32.png) [@Clinton\_Gormley](https://discuss.elastic.co/u/Clinton_Gormley)\ **Post date:** [November 27, 2012, 8:55am UTC](https://discuss.elastic.co/t/setting-source-compression-on-existing-index-not-working/9839/2 "2012-11-27T08:55:37Z")
Hiya > i want to enable source compression on an existing test index. but i > dont think my setting is working. can someone confirm - > > curl -XPUT '[http://localhost:9200/test/\_settings?pretty=true](http://localhost:9200/test/_settings?pretty=true)' -d > '{"index" : { "\_source" : {"compress" : true } } }' > { > "ok" : true > } It is a mapping, not an index setting, and a type is required: curl -XPUT '[http://127.0.0.1:9200/test/my\_type/\_mapping?pretty=1](http://127.0.0.1:9200/test/my_type/_mapping?pretty=1)' -d ' { "my\_type" : { "\_source" : { "compress" : 1 } } } ' -- ---
**Author:** ![T\_Vinod\_Gupta](https://avatars.discourse-cdn.com/v4/letter/t/fbc32d/32.png) [@T\_Vinod\_Gupta](https://discuss.elastic.co/u/T_Vinod_Gupta)\ **Post date:** [November 29, 2012, 7:12am UTC](https://discuss.elastic.co/t/setting-source-compression-on-existing-index-not-working/9839/3 "2012-11-29T07:12:28Z")
thanks, that worked! also, how long does one have to wait for the compression to start/end? i waited for 6hrs for 1 index and no change in size. running optimize also didnt make a difference. running optimize with max\_num\_segments=true decreased the size by a great amount. thanks On Tue, Nov 27, 2012 at 12:55 AM, Clinton Gormley [clint@traveljury.com](mailto:clint@traveljury.com)wrote: > Hiya > > > i want to enable source compression on an existing test index. but i > > dont think my setting is working. can someone confirm - > > > > curl -XPUT '[http://localhost:9200/test/\_settings?pretty=true](http://localhost:9200/test/_settings?pretty=true)' -d > > '{"index" : { "\_source" : {"compress" : true } } }' > > { > > "ok" : true > > } > > It is a mapping, not an index setting, and a type is required: > > curl -XPUT '[http://127.0.0.1:9200/test/my\_type/\_mapping?pretty=1](http://127.0.0.1:9200/test/my_type/_mapping?pretty=1)' -d ' > { > "my\_type" : { > "\_source" : { > "compress" : 1 > } > } > } > ' > > -- -- ---
**Author:** ![radu\_gheorghe](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/radu_gheorghe/32/556_2.png) [@radu\_gheorghe](https://discuss.elastic.co/u/radu_gheorghe)\ **Post date:** [November 29, 2012, 9:41am UTC](https://discuss.elastic.co/t/setting-source-compression-on-existing-index-not-working/9839/4 "2012-11-29T09:41:02Z")
Hello, As far as I know, only the source of new documents will be compressed, from the moment you change your mapping. ## Best regards, Radu [http://sematext.com/](http://sematext.com/) -- Elasticsearch -- Solr -- Lucene On Thu, Nov 29, 2012 at 9:12 AM, T Vinod Gupta [tvinod@readypulse.com](mailto:tvinod@readypulse.com)wrote: > thanks, that worked! > also, how long does one have to wait for the compression to start/end? i > waited for 6hrs for 1 index and no change in size. running optimize also > didnt make a difference. running optimize with max\_num\_segments=true > decreased the size by a great amount. > > thanks > > On Tue, Nov 27, 2012 at 12:55 AM, Clinton Gormley [clint@traveljury.com](mailto:clint@traveljury.com)wrote: > > > Hiya > > > > > i want to enable source compression on an existing test index. but i > > > dont think my setting is working. can someone confirm - > > > > > > curl -XPUT '[http://localhost:9200/test/\_settings?pretty=true](http://localhost:9200/test/_settings?pretty=true)' -d > > > '{"index" : { "\_source" : {"compress" : true } } }' > > > { > > > "ok" : true > > > } > > > > It is a mapping, not an index setting, and a type is required: > > > > curl -XPUT '[http://127.0.0.1:9200/test/my\_type/\_mapping?pretty=1](http://127.0.0.1:9200/test/my_type/_mapping?pretty=1)' -d ' > > { > > "my\_type" : { > > "\_source" : { > > "compress" : 1 > > } > > } > > } > > ' > > > > -- > > -- -- ---
**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, 3:02am UTC](https://discuss.elastic.co/t/setting-source-compression-on-existing-index-not-working/9839/5 "2017-07-06T03:02:16Z")