Elasticsearch and MongoDb

http://www.linkedin.com/groups/Difference-between-elasticsearch-MongoDB-3393294.S.5887644059169730563

But you need to Consider:elasticsearch are an index/search engine isn't a database, there is also no inbuild security (like password protection or access rights). We tried a while with the It "as database", but the problem arrives if you had to update many fields (there is s Ince a long time a request O support ' update by query ' on GitHub, or when you want to change the schema/mapping - You need to delete the data or reindex the data, which can is a long process when you got many records.

The above three red lines, listed Elasticsearch three shortcomings, but also not as a database of three points

Elasticsearch and MongoDb