Design a Log Collection and Analysis System

Build a system that aggregates logs from various sources within an IT infrastructure, processes them, and analyzes the data to provide insights into system health, performance issues, and security threats. The system should support real-time processing and alerting, scalable storage for log data, and powerful analysis tools to derive actionable intelligence. It's essential for the system to handle large volumes of log data efficiently and offer intuitive interfaces for monitoring and analysis. Examples of such system includes Splunk and Datadog.