# Help: Why is ElasticSearch querying a second MongoDB database instead? **URL:** \ **Category:** Elasticsearch\ **Created:** [April 19, 2012, 11:42pm UTC](https://discuss.elastic.co/t/help-why-is-elasticsearch-querying-a-second-mongodb-database-instead/7408 "2012-04-19T23:42:06Z")\ **Posts on this page:** 2\ **Page:** 1
**Author:** ![Gabriel\_Mansour](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/gabriel_mansour/32/2909_2.png) [@Gabriel\_Mansour](https://discuss.elastic.co/u/Gabriel_Mansour)\ **Post date:** [April 19, 2012, 11:42pm UTC](https://discuss.elastic.co/t/help-why-is-elasticsearch-querying-a-second-mongodb-database-instead/7408/1 "2012-04-19T23:42:06Z")
Hi there, I'm trying to use ElasticSearch for my MongoDB-backed Rails 3.2.2 app (through Tire [https://github.com/karmi/tire](https://github.com/karmi/tire)). I'm having a very strange issue where ElasticSearch seems to be returning query results from a second MongoDB database instead of the one for this app (as defined in my config/mongoid.yml file). This is very bizarre! When I do Event.all, I see all the right events. However, when I try to do Event.tire.search("foo") (or Event.tire.search('\*') even), it gives me the results from another app's MondoDB database instead! I would expect Tire to tell ElasticSearch to use this app's database automatically, but failing that, would there be a way to set it explicitly? Any help with this issue would be greatly appreciated. Thanks! Cheers, Gabriel ---
**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, 3:31am UTC](https://discuss.elastic.co/t/help-why-is-elasticsearch-querying-a-second-mongodb-database-instead/7408/2 "2017-07-06T03:31:48Z")
Closed on July 6, 2017, 3:31am UTC