Questions tagged [elasticsearch]

A distributed full text search database, which internally uses Lucene.

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Elastic: Are Analyzers only for `text` type fields?

Most of the documentation about Elastic Analyzers assumes that you NEED an Analyzer and so the documentation talks mostly about how Analyzers work and the differences between the different Analyzers. ...
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1answer
833 views

How to insert several csv files into Elasticsearch?

I have several csv files on university courses that all seem linked by an ID, that you can find here, and I wondered how to put them on Elasticsearch. I know, thanks to this video and Logstash, how to ...
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Architecture alternatives to solve large table issues in Postgres 9.0

We use PostgreSQL 9.0 for our application and there is a table called events with a lot of metadata columns about event itself. The most important is resource_id that tells for which resource is ...
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Is it possible to use Kibi with Elasticsearch 5.2?

We are in the process of migrating our MSSQL database to an elasticsearch platform, and have run into the (apparently common) problem of many parents to one child relationship, when trying to access ...
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1answer
1k views

Elasticsearch: Versioning a document on revisions

I currently have a document which gets revised regularly, I want to keep track of the document by keeping each old version of the document. So if document A has a summary and update date I want to, ...
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8 views

Elastic search data synchronization with different databases

We are using elastic search hosted in AWS for apps wide search in our organization. We had initially dumped our existing data using logstash. However, we are struck at keeping the Elastic DB in sync ...
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29 views

Difference between index and update with doc_as_upsert

I am trying to find out what is the difference between using "index" versus using "update with doc_as_upsert set to true". Which one is better from a performance perspective? Thank you
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1answer
78 views

Use data from Mysql to ElasticSearch with Logstash

I'm using logstash for use my mysql database in ElasticSearch My conf is the next. input { jdbc { jdbc_connection_string => "jdbc:mysql://[ip]:3306/nextline_dev" jdbc_user =&...
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22 views

Elasticsearch - Need to improve cluster performance, (sock hang up) happening a lot

We have Elasticsearch cluster of 3 nodes where 1 node is dedicated master and 2 nodes are dedicated data nodes. we have around 200GB of data on server and heavy _bulk and _search operations. The nodes ...
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143 views

How to add complex calculations to Elastic Search

I'm using elastic search to index large amounts of sensor data for analytics purposes. The table has 4 million + rows and growing fast - expecting 40 million within the next year. This makes Elastic ...
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105 views

Suggestions for type of DB to use (Elasticsearch vs MongoDB vs Hadoop)

I am hoping some of you highly skilled DBAs can provide some insight as to the best DB to use for this dataset. This is a relatively simple dataset with no relationship needed between the entries. ...
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221 views

MongoDB or ElasticSearch

Which one of them is good to use? I'm developing a application which will have the following functionalities. Multiple users Each user will have their own database Data objects will be different; ...