What does the error "Bad gateway" mean on Kibana Dashboard?

Question

I have a "Elastic-search + Kibana" instance which has a lot of data. I have another HAProxy instance which redirects connection to Kibana dashboard. I am having a issue where the Kibana Dashboard isn't able to search (*) , it takes too much time & eventually throws this -:

I want to know why is this happening or what exactly "Bad Gateway" mean. Moreover what to can be done to solve this.

That typically means that an intermediate proxy wasn't able to satisfy a request with a backend. This probably means that HAProxy is either unable to route requests to Elasticsearch, or requests are timing out. Check your HAProxy logs. — Chris Heald
Even if i directly access the kibana dashboard , it says Error, Visualize: Gateway Timeout — Nishant Singh

Nishant Singh Nishant Singh · Accepted Answer · 2016-03-11T09:38:38

Found the solution , it was the issue of Elastic_search tuning. I had to allocate half of the memory to ES_HEAP_SIZE & did some tweaks on elasticsearch.yml which doesn't allow JVM to swap memory.

What does the error "Bad gateway" mean on Kibana Dashboard?

2 Answers