# \_all and compress fields **URL:** \ **Category:** Elasticsearch\ **Created:** [July 11, 2014, 6:50pm UTC](https://discuss.elastic.co/t/-all-and-compress-fields/18609 "2014-07-11T18:50:29Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![IronMike](https://avatars.discourse-cdn.com/v4/letter/i/e9a140/32.png) [@IronMike](https://discuss.elastic.co/u/IronMike)\ **Post date:** [July 11, 2014, 6:50pm UTC](https://discuss.elastic.co/t/-all-and-compress-fields/18609/1 "2014-07-11T18:50:29Z")
I am looking for ways to reduce index size, So I turned on compression, it helped a little but not much. I did 2 more things that helped but not quite sure what the effects are: - I turned off \_all field for all. What is the downside to this? - I tuned off "store" field for "file" field, which handles text from binary files like pdfs..? Should the "store" field for attachments be ON if I need highlighting in my queries? -- You received this message because you are subscribed to the Google Groups "elasticsearch" group. To unsubscribe from this group and stop receiving emails from it, send an email to [elasticsearch+unsubscribe@googlegroups.com](mailto:elasticsearch+unsubscribe@googlegroups.com). To view this discussion on the web visit [https://groups.google.com/d/msgid/elasticsearch/51994e55-fba3-4968-b146-834f1ff97fba%40googlegroups.com](https://groups.google.com/d/msgid/elasticsearch/51994e55-fba3-4968-b146-834f1ff97fba%40googlegroups.com). For more options, visit [https://groups.google.com/d/optout](https://groups.google.com/d/optout). ---
**Author:** ![vineeth\_mohan\_2](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/vineeth_mohan_2/32/747_2.png) [@vineeth\_mohan\_2](https://discuss.elastic.co/u/vineeth_mohan_2)\ **Post date:** [July 12, 2014, 5:23am UTC](https://discuss.elastic.co/t/-all-and-compress-fields/18609/2 "2014-07-12T05:23:38Z")
Hello , I believe the compression is enabled by default. Disabling \_all means that you wont be able to search on all fields together. That is in , query\_string , you will need to specify which field you want to query , else the search will give 0 results. This will certainly help in reducing the space. I believe store is also disabled by default. For highlighting \_source is used if store is disabled , so it wont affect highlighting. Thanks Vineeth On Sat, Jul 12, 2014 at 12:20 AM, IronMike [sabdalla80@gmail.com](mailto:sabdalla80@gmail.com) wrote: > I am looking for ways to reduce index size, > So I turned on compression, it helped a little but not much. > > I did 2 more things that helped but not quite sure what the effects are: > > - I turned off \_all field for all. What is the downside to this? > > - I tuned off "store" field for "file" field, which handles text from > binary files like pdfs..? Should the "store" field for attachments be ON if > I need highlighting in my queries? > > -- > You received this message because you are subscribed to the Google Groups > "elasticsearch" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [elasticsearch+unsubscribe@googlegroups.com](mailto:elasticsearch+unsubscribe@googlegroups.com). > To view this discussion on the web visit > [https://groups.google.com/d/msgid/elasticsearch/51994e55-fba3-4968-b146-834f1ff97fba%40googlegroups.com](https://groups.google.com/d/msgid/elasticsearch/51994e55-fba3-4968-b146-834f1ff97fba%40googlegroups.com) > [https://groups.google.com/d/msgid/elasticsearch/51994e55-fba3-4968-b146-834f1ff97fba%40googlegroups.com?utm\_medium=email&utm\_source=footer](https://groups.google.com/d/msgid/elasticsearch/51994e55-fba3-4968-b146-834f1ff97fba%40googlegroups.com?utm_medium=email&utm_source=footer) > . > For more options, visit [https://groups.google.com/d/optout](https://groups.google.com/d/optout). -- You received this message because you are subscribed to the Google Groups "elasticsearch" group. To unsubscribe from this group and stop receiving emails from it, send an email to [elasticsearch+unsubscribe@googlegroups.com](mailto:elasticsearch+unsubscribe@googlegroups.com). To view this discussion on the web visit [https://groups.google.com/d/msgid/elasticsearch/CAGdPd5%3DFq5gxLvHUv89F%3D8axKWcXXPTky1qo8ci3ZRjC7z3vdw%40mail.gmail.com](https://groups.google.com/d/msgid/elasticsearch/CAGdPd5%3DFq5gxLvHUv89F%3D8axKWcXXPTky1qo8ci3ZRjC7z3vdw%40mail.gmail.com). For more options, visit [https://groups.google.com/d/optout](https://groups.google.com/d/optout). ---
**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, 1:16am UTC](https://discuss.elastic.co/t/-all-and-compress-fields/18609/3 "2017-07-06T01:16:20Z")