Ask HN: what linux log file analytics to use

Linux servers generate something like 20 different log files. Are there any tools that gives complete system level alerts & overview analysis by taking these log files as input? I am looking for easy setup & go, with something as simple as setup, tail & pipe the log files to a remote server.

Most tools I am aware of like Google analytics seem focused on customer/end user analysis. Does any startup, use splunk to track single-system/multi-system management dashboard and provide insights?

It'll be great if such a software was available as service.