Advanced Elasticsearch 7.0

Basic Elasticsearch configuration

Elasticsearch 7.0 has several configuration files located in the config directory, shown as follows. Basically, it provides good defaults, and it requires very little configuration from developers:

ls config

The output will be similar to the following:

elasticsearch.keystore  elasticsearch.yml  jvm.options  log4j2.properties  role_mapping.yml  roles.yml  users  users_roles

Let's take a quick look at the elasticsearch.yml, jvm.options, and log4j2.properties files:

• elasticsearch.yml: The main configuration file. This configuration file contains settings for the clusters, nodes, and paths. If you specify an item, comment out the line. We'll explain the terminology in the Elasticsearch architectural overview section: ...