# Using only ES or combined combined with Mongodb or Cassandra **URL:** \ **Category:** Elasticsearch\ **Created:** [July 16, 2014, 12:05pm UTC](https://discuss.elastic.co/t/using-only-es-or-combined-combined-with-mongodb-or-cassandra/18699 "2014-07-16T12:05:15Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![HansPeterSloot](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/hanspetersloot/32/51132_2.png) [@HansPeterSloot](https://discuss.elastic.co/u/HansPeterSloot)\ **Post date:** [July 16, 2014, 12:05pm UTC](https://discuss.elastic.co/t/using-only-es-or-combined-combined-with-mongodb-or-cassandra/18699/1 "2014-07-16T12:05:15Z")
Hi, While reading and watching a lot of material about elasticsearch I frequently noticed that EE is often combined with other NoSql products like Mongodb or Cassandra. That suprised me. Can someone shed some light on the disadvantage of only using ES? And what are the advantages of using a combination? Regards Hans -- 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/d6e873c0-6116-4ca4-90d5-423742c9b9d6%40googlegroups.com](https://groups.google.com/d/msgid/elasticsearch/d6e873c0-6116-4ca4-90d5-423742c9b9d6%40googlegroups.com). For more options, visit [https://groups.google.com/d/optout](https://groups.google.com/d/optout). ---
**Author:** ![otisg](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/otisg/32/492_2.png) [@otisg](https://discuss.elastic.co/u/otisg)\ **Post date:** [July 19, 2014, 4:45am UTC](https://discuss.elastic.co/t/using-only-es-or-combined-combined-with-mongodb-or-cassandra/18699/2 "2014-07-19T04:45:22Z")
Some people simply feel more comfortable using some of these other technologies. Others may really have different access patterns, some of which ES may not handle well (this is theory - in our work with many, many companies using ES I've seen many cases of this double-storage approach, but I don't recall a concrete example of this being required because of a different access pattern ES cannot handle). Some of the cons of having both: - keeping them in sync - duplicate data - more hardware needed - more work to maintain - more $$$ ## Otis Performance Monitoring \* Log Analytics \* Search Analytics Solr & Elasticsearch Support \* [http://sematext.com/](http://sematext.com/) On Wednesday, July 16, 2014 8:05:15 AM UTC-4, HansPeterSloot wrote: > Hi, > > While reading and watching a lot of material about elasticsearch I > frequently noticed that EE is often > combined with other NoSql products like Mongodb or Cassandra. > That suprised me. > > Can someone shed some light on the disadvantage of only using ES? > And what are the advantages of using a combination? > > Regards Hans -- 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/174d5d29-f7bf-4c11-977e-b32488fb409c%40googlegroups.com](https://groups.google.com/d/msgid/elasticsearch/174d5d29-f7bf-4c11-977e-b32488fb409c%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, 1:14am UTC](https://discuss.elastic.co/t/using-only-es-or-combined-combined-with-mongodb-or-cassandra/18699/3 "2017-07-06T01:14:47Z")
Closed on July 6, 2017, 1:14am UTC