Presto (C++) overview
Presto (C++) is a version of Presto workers that are implemented in C++ instead of Java by using the Velox library.
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Presto (C++) aims to enhance performance for data lakes without requiring a JVM on worker nodes. It supports several connectors, including Hive and Iceberg, and focuses on improved integration with data warehousing systems.
IBM® watsonx.data uses version 0.286 of Presto (C++).
Presto (C++) features
- Task management
- Presto C++ includes HTTP endpoints that allow users to monitor and manage tasks. This feature enhances operational oversight and makes it easier to track ongoing processes.
- Remote function execution
- Enables executing functions on remote nodes, which enhance scalability and distributed processing capabilities, making data processing more efficient across a network of nodes.
- Authentication
- Uses JSON Web Tokens (JWT) for secure internal communication between nodes, ensuring that data remains secure and tamper-proof during transmission.
- Data caching
- Implements asynchronous data caching with prefetching capabilities. This optimizes data retrieval and processing speed by anticipating data needs and caching it in advance.
- Performance Tuning
- Offers various session properties for performance tuning, including settings for spill thresholds and compression. This allows users to fine-tune performance parameters according to their specific needs, ensuring optimal performance of data processing tasks.
For more information about Presto (C++), see Presto C++ features.
For more information about provisioning a Presto (C++) engine, see Provisioning a Presto (C++) engine.
For more information about switching between Presto (Java) and Presto (C++) engines, see Switching between Presto (Java) and Presto (C++) engines.