CrowdStrike, a leading cybersecurity firm, has developed a sharded approach to manage the scaling limitations of Apache Kafka in their data processing pipeline, which processes over a trillion events per day. By splitting a large Kafka cluster into multiple smaller ones, referred to as shards, they have achieved nearly infinite horizontal scaling, improved ease of maintenance, and enhanced fault reliability. This approach allows for seamless addition and removal of shards, minimizing operational overhead and costs while maintaining high throughput and reliability. Key considerations for implementing a sharded solution include ensuring coordinated data activation to prevent data loss, managing costs associated with maintaining enough capacity to absorb inactive shard traffic, and maintaining data uniformity across shards to support failover. CrowdStrike's solution aims to handle growing data streams without compromising reliability, offering insights into managing scalability challenges effectively.