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OpenSearchCon Europe 2026 has ended
16-17 April 2026 | Prague, Czechia 
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Thursday April 16, 2026 10:20 - 11:00 CEST


In large-scale OpenSearch clusters, uneven workload distribution creates performance bottlenecks that traditional shard allocation strategies can't address. We present a groundbreaking approach to cluster optimisation through heat-aware operations, transforming how OpenSearch handles resource utilisation and workload distribution.

Our solution introduces a smart heat detection system that monitors cluster health across multiple dimensions - CPU, memory, I/O, and query patterns. By analysing both node and shard-level metrics using statistical methods, we can identify and classify various patterns of resource imbalance.

Key innovations include:
🔹 Multi-dimensional heat scoring for precise hotspot detection
🔹 Pattern recognition for automated root cause analysis
🔹 Intelligent rebalancing recommendations
🔹 Predictive scaling suggestions

Through real-world examples, we'll demonstrate how this system:
- Reduces query latency
- Optimises resource utilisation across clusters
- Prevents cascading performance issues
- Enables proactive capacity planning

Join us to explore how heat-aware operations are setting new standards for OpenSearch cluster performance and reliability.
Speakers
avatar for Arpit Bandejiya

Arpit Bandejiya

SDE II, AWS
Arpit Bandejiya is a Software Development Engineer ll at AWS, working in Opensearch. Over the past three years, he has focused on Shard management, scalability and performance optimization. His interests lie in distributed systems and building high performance scalable infrastruc... Read More →
avatar for Gaurav Bafna

Gaurav Bafna

Senior Software Engineer, Amazon
Gaurav Bafna is a Senior Engineer with Amazon OpenSearch Service. He is excited about scaling challenges with distributed systems. He has been with OpenSearch team for 8 years and has a good operating experience with OpenSearch clusters. He is an active contributor and a maintainer... Read More →
Thursday April 16, 2026 10:20 - 11:00 CEST
Bohemia 1
  Analytics + Security + Observability
  • Presentation Slides Attached Yes

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