Find out elastic Search health using _cat/health

The cat API print the info in JSON format, compact and aligned text which is easy to read by Human eyes. health command when a cluster is malfunctioning. During this period, it’s extremely important to correlate activities across log files, alerting systems, etc. There are two outputs. The HH:MM:SS output is simply for quick human consumption. The epoch time retains more information, including date, and is machine sortable if your recovery spans days.

curl -X GET “localhost:9200/_cat/master?v”

GET /_cat/master?v

curl -X GET “localhost:9200/_cat/master?help”

GET /_cat/master?help

GET /_cat/health?v

curl -X GET “localhost:9200/_cat/health?v”

curl -XGET ‘localhost:9200/_cluster/health?pretty’

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