In my last article, I wrote about how to get started running Elasticsearch on EC2. I breifly mentioned the cluster state switching from yellow to green and recieved a comment asking exactly what this meant. I’ve prepared this short post discussing the yellow status, and the Elasticsearch Cluster Health API. Before I start, let’s recap on some Elasticsearch terminology: an Elasticsearch cluster is
![Elasticsearch "Yellow" cluster status explained | Chris Simpson - Software Developer](https://cdn-ak-scissors.b.st-hatena.com/image/square/bb48b8051c74de1d204209a10f92ce273cc3eac1/height=288;version=1;width=512/http%3A%2F%2Fchrissimpson.co.uk%2Fimg%2Fbigdesk-2.png)