4 papers
io_uring in Oracle Database: A Hybrid Storage I/O Architecture at Production Scale
Rajarshi Chowdhury, Akshay Shah, Margaret Susairaj +1
We describe the integration of io_uring into Oracle Database's storage layer and the architectural decisions required to deploy it in a production multi-process RDBMS. Our design u…
Hardware-Transparent I/O Governance in Disaggregated Heterogeneous Storage
Rajarshi Chowdhury, Akshay Shah, Sue K. Lee
Shared-nothing disaggregated storage clusters that serve both latency-sensitive databases and opaque block-volume workloads face two governance problems unsolved by existing schedu…
IORM: Hierarchical I/O Governance for Thousands of Consolidated Databases on Oracle Exadata
Rajarshi Chowdhury, Akshay Shah, Zakaria Alrmaih +3
Oracle Exadata consolidates thousands of tenant databases onto shared storage infrastructure deployed at hundreds of customer sites worldwide. Oracle Multitenant architecture enabl…
A Secure, Manifest-Based Framework for Delegated Privilege Promotion
Rajarshi Chowdhury, Akshay Shah
Large-scale enterprise software systems commonly run as unprivileged service accounts to enforce least privilege, yet still depend on a small set of privileged components -- such a…