8. Elastic

8.1

Master-eligible node.

This node could be selected as a master of a cluster, so it will be in control.

• Master node is responsible for lightweight operations like creation/deletion of the index.

• It’s crucial for cluster health and stability.

• By default, every new node is a master-eligible node.

Data node.

This type of nodes will store Elasticsearch index and could perform operations as CRUD, search, aggregations. By default, every new node is a data node

Ingest node.

This type of node, that is participating in the ingest pipelines (e.g. enriching documents before indexing). By default, every new node is an ingest node

Tribe node.

Special type of coordinating node, which is able to connect to several clusters and perform searches across all connected clusters. Disabled for every new node by default

8.2

KIBANA. is an open source analytics and visualization platform designed to work with Elasticsearch.

• You use Kibana to search, view, and interact with data stored in Elasticsearch indices.

• You can easily perform advanced data analysis and visualize your data in a variety of charts, tables, and maps.

8.3

Logstash

Logstash is an open source data collection engine with real-time pipelining capabilities.

Logstash can dynamically unify data from disparate sources and normalize the data into destinations of your choice.

Beats

The Beats are open source data shippers that you install as agents on your servers to send different types of operational data to Elasticsearch.

Beats can send data directly to Elasticsearch or send it to Elasticsearch via Logstash, which you can use to parse and transform the data.