Load balancers

Elastic Cloud Enterprise is designed to be used in conjunction with at least one load balancer. A load balancer is not included with Elastic Cloud Enterprise, so you need to provide one yourself and place it in front of the Elastic Cloud Enterprise proxies.

Use the following recommendations when configuring your load balancer:

You can use /__elb_health__ on your proxy hosts and check for a 200 response that indicates healthy.

http://<proxy-address>:9200>/__elb_health__

or

https://<proxy-address>:9243>/__elb_health__

This returns a healthy response as:

{"ok":true,"status":200}

For Elastic Cloud Enterprise 2.1 and later, the health check endpoint has changed. You can use /_health on proxy hosts with a result of either a 200 OK to indicate healthy or a 502 Bad Gateway response for unhealthy. A healthy response also means that internal routing tables in the proxy are valid and initialized, but not necessarily up-to-date.

http://PROXY_ADDRESS:9200/_health

or

https://PROXY_ADDRESS:9243/_health

This returns a healthy response as:

{"ok":true,"status":200}