[aaron42net]

We weren't having issues solved by basic documentation.

In the most recent example, we were occasionally hitting Java heap OutOfMemory under our workloads and wanted tuning or even architectural advice. It turns out that ElasticSearch didn't limit ingestion rate to control memory pressure and was happy to accept writes under load until it exploded. Heavy users of ElasticSearch commonly have to watch ES memory pressure and throttle their own writes client-side.

I would've loved to hear these limitations from elastic.co, be offered some tips on appropriate techniques for throttling, or have them accept a feature request to better handle this server side. We never got anywhere near that level of depth of understanding our problem, after months of trying. It felt like we were talking to first-level support who didn't understand the product much better than we did.