Before the philosophy of DevOps, developers would build products, services, and infrastructures , but the responsibility for maintaining them would shift to operators, aka system or IT admins. The DevOps philosophy removes the boundary between Operations and Development teams, making system reliability a shared responsibility of all parties.
Logs contain some of the most valuable data available to developers, DevOps practitioners, Site Reliability Engineers (SREs) and security teams, particularly when troubleshooting an incident. It’s not always easy to extract and use, though. One common challenge is that many log entries are blobs of unstructured text, making it difficult to extract the relevant information when you need it.
On October 21, 2016 at approximately 4am PST, the internet broke. OK, we know the internet doesn’t “break.” But hundreds of important services powering our modern web infrastructure had outages – all stemming from a DDoS targeting Dyn, one of the largest DNS providers on the internet.