Amazon Managed Service for Prometheus Elevates Scalability with Increased Default Active Series Limit to 50 Million
Seattle, WA – July 30, 2025 – Amazon Web Services (AWS) today announced a significant enhancement to Amazon Managed Service for Prometheus (AMP), a fully managed Prometheus-compatible monitoring service. Effective immediately, the default active series limit per workspace has been increased from 10 million to a robust 50 million. This substantial upgrade underscores AWS’s commitment to providing highly scalable and cost-effective solutions for cloud-native observability.
This increase in the default active series limit is a welcome development for organizations leveraging AMP to monitor their increasingly complex and dynamic applications. Prometheus, a popular open-source monitoring and alerting toolkit, relies on the concept of “series” – unique combinations of metric names and label key-value pairs – to represent individual data points. For many growing businesses, particularly those with microservices architectures, containerized workloads, and a high volume of dynamic infrastructure, hitting previous series limits could necessitate careful capacity planning or the adoption of less flexible workarounds.
With the default limit now set at 50 million active series, AMP offers greater headroom for a wider range of customer use cases. This means that more applications, more instances, and more granular metrics can be collected and analyzed within a single AMP workspace without immediate concern for exceeding the default capacity. This enhanced scalability simplifies operations and allows teams to focus more on deriving actionable insights from their monitoring data rather than managing infrastructure limitations.
The proactive decision by AWS to raise this limit reflects a deep understanding of the evolving needs of modern cloud deployments. As organizations embrace digital transformation and scale their operations, the volume of telemetry data generated also grows exponentially. By providing a higher default limit, AWS is empowering customers to:
- Scale More Confidently: Deploy and manage larger fleets of services and instances with greater assurance that their monitoring solution can keep pace.
- Reduce Operational Overhead: Minimize the need for complex configurations or manual adjustments to accommodate growing metrics.
- Enhance Observability Granularity: Collect more detailed metrics from a broader spectrum of application components and infrastructure.
- Improve Cost-Effectiveness: Avoid potential performance bottlenecks or the need for premature workspace segregation driven by series limits.
This enhancement is particularly beneficial for companies running large-scale Kubernetes clusters, extensive microservice deployments, or those adopting sophisticated autoscaling strategies where the number of active series can fluctuate dynamically. The ability to ingest and process a significantly larger number of unique time series within a single managed environment streamlines the observability pipeline and fosters a more comprehensive view of application health and performance.
Amazon Managed Service for Prometheus continues to provide a compelling value proposition by offering a fully managed, highly available, and scalable solution that is fully compatible with the open-source Prometheus ecosystem. This upgrade further solidifies AMP’s position as a leading choice for organizations seeking a robust and future-proof observability platform on AWS.
Customers can benefit from this increased default limit immediately. AWS encourages users to continue monitoring their specific usage patterns and leverage AWS Cost Explorer and AMP metrics to optimize their observability strategy. This latest advancement demonstrates AWS’s ongoing dedication to innovating and delivering best-in-class services that empower customers to build, deploy, and manage their applications with confidence.
Amazon Managed Service for Prometheus increases default active series limit to 50M per workspace
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