Honestly, some of the most preventable and dumbest outages and failures in my career have involved ElasticSearch. Most of the time it's deployed and managed by

Honestly, some of the most preventable and dumbest outages and failures in my career have involved ElasticSearch. Most of the time it's deployed and managed by a dev team with no operational oversight, and therefore nobody to think about or catch these types of issues. It is compounded by the fact that all the security features in ES were paywalled for a very long time and most technologists don't understand basic networking anymore. As many other answers to your query have stated, this is caused by a broken understanding of the devops methodology among organizational management forcing developers who are not competent in systems administration to be responsible for these systems.