@messai1985 - 3 small points should answer your question in brief. Yes, technically, Splunk can do almost everything that Hadoop can do as Splunk has broader Splunk functionality. Everytime I think of comparing two products there is always trade-off. Splunk is really good with raw text data. Splunk can also do structured data but will not perform as good as databases. Hadoop can be after the data that has been migrated from the SQL database to Hadoop. You can also use a combination of both, Splunk and Hadoop: https://splunkbase.splunk.com/app/5158/#/details https://splunkbase.splunk.com/app/3311/ (I personally have not used these Apps, read the docs please)   I hope this helps!!! ... View more