Splunk is Google for your machine data. It’s a software/Engine which can be used for searching, visualizing, Monitoring, reporting, etc of your enterprise data. Plunk takes valuable machine data and turns it into powerful operational intelligence by providing real-time insight into your data through charts, alerts, and, reports, etc.
| Splunk Cloud | Hadoop HDFS |
| Annual Subscription | Free |
| Cloud-based service | Distributed file system designed to run on commodity hardware |
| Splunk is a tool |