Sounds crazy, but Datadog. I’ve been hammering their product teams for years with specific use cases for the sole purpose of replacing Splunk. They recently migrated search technologies and are rapidly closing the gap. Plus, their exclusion features are instant and fantastic, and their C-suite replies to me when I escalate.

Elasticsearch simply couldn’t handle key collisions. We have hundreds of various apps across 5-10 different languages and frameworks where a key name may be reused as either a string or a hash or an integer or an array. If we can’t freeform search (which Splunk is EXCELLENT at), we just need to be able to transform the data beforehand. Datadog plans to do so with their recent acquisition of Vector.