CDB/Rebuild Index

The architecture of CDB/Rebuild Index is designed for high-performance index rebuilding within the DB2 environment on z/OS. The core components work in a coordinated manner to minimize downtime and optimize resource utilization. The Control Program acts as the central orchestrator, managing the overall rebuild process.

The Index Reader is responsible for reading index data from the existing index structures. The Data Sorter then sorts the index data, preparing it for the new index. The Index Writer constructs the new index based on the sorted data.

Communication between these components is primarily internal, using optimized data transfer mechanisms within the z/OS environment. The utility interacts with DB2 through standard SQL interfaces and DB2's internal APIs. The configuration file plays a crucial role in customizing the rebuild process.

, the `PARALLEL` option), and logging options. The utility leverages the z/OS environment for resource management, including memory allocation and I/O operations. The utility does not expose any external APIs like REST or SOAP.

The utility's design prioritizes efficient resource utilization and minimal impact on production systems. The utility's design allows for parallel processing, enabling faster rebuild times. The utility integrates with DB2's monitoring and logging features, providing detailed insights into the rebuild process.

The utility's architecture is optimized for the z/OS platform, ensuring high performance and reliability.