When dealing with real-time stream processing, stability and predictability are critical. Many developers have experienced the frustration of seeing important dashboards slow down or critical pipelines stall because of resource contention in shared environments.

Typically, stream processing jobs run on shared clusters. While convenient initially, shared clusters suffer from the “noisy neighbor” issue—a single inefficient or resource-intensive query can degrade performance across all jobs on the cluster. This unpredictability is a real operational pain, and can even lead to full outages.

One common workaround is deploying a separate cluster per application. While this solves the isolation issue, it introduces its own headaches—like increased operational complexity, difficulty scaling, and tedious cluster management.

DeltaStream’s Serverless Revelation: Workload Isolation Without Orchestration Agony

DeltaStream tackles this differently. Our serverless architecture automatically creates an isolated Flink cluster for each streaming query. Instead of multiple queries competing in a shared environment, each one gets dedicated resources in its own isolated space. If one query becomes problematic, it won’t affect any others.

DeltaStream’s Key Advantages:

• Complete Isolation: Each query runs independently. A problematic query doesn’t impact the performance or reliability of others.
• Predictable Performance: Dedicated resources for every query mean your SLAs stay consistent and reliable.
• Automatic Scaling: DeltaStream dynamically allocates CPU and memory resources per query, based on real-time needs—no manual tuning required.
• Simplified Operations: No need to manage multiple clusters yourself. DeltaStream handles provisioning, scaling, and orchestration behind the scenes.

As the table illustrates, while traditional shared clusters suffer from the “noisy neighbor” problem and managing multiple clusters introduces operational overhead, DeltaStream offers a superior solution with its inherent query-level isolation and simplified serverless experience.

Embrace Stability and Focus on Your Data

DeltaStream’s approach significantly reduces the complexity and unpredictability associated with traditional stream processing setups. By providing query-level isolation and a fully-managed, serverless environment, developers and data engineers can concentrate on delivering real-time insights instead of managing infrastructure.

No more noisy neighbors, just reliable, predictable streaming analytics.