# Aerospike Key-Value Store
A critical component of Teranode's architecture is the **Aerospike key-value store**, which plays a pivotal role in managing UTXOs and facilitating rapid transaction processing. Capable of handling an astonishing **one million transactions per second**, Aerospike's performance is largely attributed to its efficient data storage and retrieval mechanisms.
Key features of Aerospike include:
* **User-Defined Functions (UDFs)**: These allow developers to implement complex logic directly within the database, enhancing the processing capabilities of transactions. UDFs in Aerospike are written in **Lua**, a lightweight scripting language, enabling rapid execution of transaction-related operations.
* **Speed Optimization**: The performance of Aerospike is primarily determined by the speed of the underlying storage, particularly **NVMe disks**, which provide high throughput and low latency for data access.
The combination of these features positions Aerospike as a powerful tool for managing the high transaction volumes that Teranode aims to achieve.
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