Getting cluster node information using an API

The previous recipe allows information to be returned to the cluster level; Elasticsearch provides calls to gather information at the node level. In production clusters, it's very important to monitor nodes using this API in order to detect misconfiguration and any problems relating to different plugins and modules.

Getting ready

You will need an up-and-running Elasticsearch installation—similar to the one that we described in the Downloading and installing Elasticsearch recipe in Chapter 1, Getting Started.

In order to execute the commands, any HTTP client can be used, such as curl (https://curl.haxx.se/) or postman (https://www.getpostman...