Elasticsearch索引RDBMS数据

Question

These are three simple questions which was surprisingly hard to find definite answers.

1. Does ElasticSearch support indexing data in RDBMS tables ( Oracle/SQLServer/Informix) out of the box?
2. If yes, can you please point me to documentation on how to do it
3. If not, what are alternate ways (plugins like Rivers - deprecated) with good reputation

Answer 1

I'm surprised there isn't any solid answer as yet for this. So here's the solution. Logstash directly gives us the ability to push data from a RDBMS into Elasticsearch.

Here's a link to a tutorial which tell you how to go about it. Briefly(all details in link 1), you simply need a JDBC driver for the relational database you'll be using (Postgres, MySQL etc) and make a config file specifying your input as the Relational Database and your output as Elasticsearch. You can also specify a cron which would allow you to keep updating one regular intervals.

• Here's the article which mentions the configuration and gets you started (See Example 2): https://www.elastic.co/blog/logstash-jdbc-input-plugin

• Here's the article which tells you how to configure the Cronjob as such: https://www.elastic.co/guide/en/logstash/current/plugins-inputs-jdbc.html#_scheduling