# How ELK stores data **URL:** \ **Category:** Elasticsearch\ **Created:** [March 9, 2015, 3:34pm UTC](https://discuss.elastic.co/t/how-elk-stores-data/22585 "2015-03-09T15:34:52Z")\ **Posts on this page:** 4\ **Page:** 1
**Author:** ![vikas\_gopal](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/vikas_gopal/32/47661_2.png) [@vikas\_gopal](https://discuss.elastic.co/u/vikas_gopal)\ **Post date:** [March 9, 2015, 3:34pm UTC](https://discuss.elastic.co/t/how-elk-stores-data/22585/1 "2015-03-09T15:34:52Z")
Hi Experts, I am totally new to this tool, so I have couple of basic queries 1. How ELK stores indexed data. Like traditional analytic tools stores data in flat files or in their own database . 2. How we can perform historical search 3. How license is provided , I mean is it based on data indexed per day ? 4. If I want to start do I need to download 3 tools (ElasticSearch,Logstash, Kibana) Please assist Thanks VG -- 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/26f99ae1-7b99-467f-94d3-71a01b3b6ce7%40googlegroups.com](https://groups.google.com/d/msgid/elasticsearch/26f99ae1-7b99-467f-94d3-71a01b3b6ce7%40googlegroups.com). For more options, visit [https://groups.google.com/d/optout](https://groups.google.com/d/optout). ---
**Author:** ![magnusbaeck](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/magnusbaeck/32/44943_2.png) [@magnusbaeck](https://discuss.elastic.co/u/magnusbaeck)\ **Post date:** [March 9, 2015, 4:10pm UTC](https://discuss.elastic.co/t/how-elk-stores-data/22585/2 "2015-03-09T16:10:10Z")
On Monday, March 09, 2015 at 16:34 CET, vikas gopal [vikas.hafig@gmail.com](mailto:vikas.hafig@gmail.com) wrote: > I am totally new to this tool, so I have couple of basic queries > > 1. How ELK stores indexed data. Like traditional analytic tools > stores data in flat files or in their own database . Elasticsearch is based on Lucene and the data is stored in whatever format Lucene uses. This isn't something you have to care about. > 1. How we can perform historical search Using the regular query APIs. Sorry for such a general answer but your question is very general. > 1. How license is provided , I mean is it based on data > indexed per day ? It's free Apache-licensed software so you don't have to pay anything. If you feel you need a support contract that's being offered at a couple of different levels. I'm sure there are third parties offering similar services. [http://www.elasticsearch.com/support/](http://www.elasticsearch.com/support/) > 1. If I want to start do I need to download 3 tools > (Elasticsearch,Logstash, Kibana) If you want the whole stack from log collection to storage to visualization then yes, you need all three. But apart from a dependency from Kibana to Elasticsearch the tools are independent. I suggest you download them and try them out. That's the quickest way to figure out whether the tool stack (or a subset thereof) fits your needs. There are also a number of videos available. -- Magnus Bäck | Software Engineer, Development Tools [magnus.back@sonymobile.com](mailto:magnus.back@sonymobile.com) | Sony Mobile Communications -- 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/20150309161010.GA18116%40seldlx20533.corpusers.net](https://groups.google.com/d/msgid/elasticsearch/20150309161010.GA18116%40seldlx20533.corpusers.net). For more options, visit [https://groups.google.com/d/optout](https://groups.google.com/d/optout). ---
**Author:** ![Austin\_Harmon](https://avatars.discourse-cdn.com/v4/letter/a/ce73a5/32.png) [@Austin\_Harmon](https://discuss.elastic.co/u/Austin_Harmon)\ **Post date:** [March 12, 2015, 2:44pm UTC](https://discuss.elastic.co/t/how-elk-stores-data/22585/3 "2015-03-12T14:44:42Z")
Hello, to add on to the searching historical data question, I know Elasticsearch using JSON to index documents but how do you get it to index the body of the document without copy and pasting the body into JSON. I assume there is a way to do this. I have used analyzers in my mapping but it didn't get the body of the document. thanks, Austin On Monday, March 9, 2015 at 11:10:40 AM UTC-5, Magnus Bäck wrote: > On Monday, March 09, 2015 at 16:34 CET, > vikas gopal \<[vikas...@gmail.com](mailto:vikas...@gmail.com) \\> wrote: > > > I am totally new to this tool, so I have couple of basic queries > > > > 1. How ELK stores indexed data. Like traditional analytic tools > > stores data in flat files or in their own database . > > Elasticsearch is based on Lucene and the data is stored in > whatever format Lucene uses. This isn't something you have > to care about. > > > 1. How we can perform historical search > > Using the regular query APIs. Sorry for such a general answer > but your question is very general. > > > 1. How license is provided , I mean is it based on data > > indexed per day ? > > It's free Apache-licensed software so you don't have to pay > anything. If you feel you need a support contract that's > being offered at a couple of different levels. I'm sure there > are third parties offering similar services. > > [Subscriptions | Elastic Stack Products & Support | Elastic](http://www.elasticsearch.com/support/) > > > 1. If I want to start do I need to download 3 tools > > (Elasticsearch,Logstash, Kibana) > > If you want the whole stack from log collection to storage > to visualization then yes, you need all three. But apart > from a dependency from Kibana to Elasticsearch the tools > are independent. > > I suggest you download them and try them out. That's the > quickest way to figure out whether the tool stack (or a subset > thereof) fits your needs. There are also a number of videos > available. > > -- > Magnus Bäck | Software Engineer, Development Tools > [magnu...@sonymobile.com](mailto:magnu...@sonymobile.com) \ | Sony Mobile Communications -- 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/c1f07b87-b8d3-4401-8dae-431264352809%40googlegroups.com](https://groups.google.com/d/msgid/elasticsearch/c1f07b87-b8d3-4401-8dae-431264352809%40googlegroups.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, 12:27am UTC](https://discuss.elastic.co/t/how-elk-stores-data/22585/4 "2017-07-06T00:27:14Z")