但是两种存储引擎都没有实现 System R 著名的多级锁粒度支持[12],因此在某些场景下两者表现得都不是很好,例如在混合了 scan 和 high-selectivity index access 的场景。 References [1] HELLERSTEIN J M, STONEBRAKER M, HAMILTON J. Architecture of a Database S
Metadata is all the additional components that the database middleware uses to maintain the context, or state, of the system, for example run-time structures describing active connections, and other “metadata” components that are specific to the architecture of that particular database. The data...
它还包括一个缓冲管理 器,用来控制内存缓冲区和磁盘之间的数据传输。回到我们的例子中,在获取数据的过程中, 登机口客户端的查询必须调用事务管理代码来保证“ACID”性质(将在第 5.1 节讨论)。在 获取数据之前,需要通过锁管理器来确保并发情况下运行的正确性。如果登机口客户端的查 询包含对数据库的更新操作,那么,...
并行软件架构在未来十年将迎来一个重要挑战,这个挑战来自于处理器供应商开发出新 一代“众核”架构的构想。这些设备将会引进一种新的硬件设计理念,即在一个单一的芯片上 拥有数十、数百甚至数千的处理单元,通过高速芯片网络互联,但是,仍然保留了许多现有 的瓶颈,比如访问芯片外的内存和磁盘。这将会导致在磁盘和处理...
the interdependencies between the three main aspects of a transactional storage system: concurrency control, recovery management, and access methods Standard Practice postgres MVCC,mysql Additional Perhaps the most noticeable changes in this space are due to the rapidly dropping price of RAM ...
Bring AI to your data with built-in AI Vector Search and in-database machine learning; eliminate the complexity and cost of integrating and managing multiple databases—and trying to maintain data consistency. Benefit from AI at-scale without sacrificing security, availability, and performance. ...
Oracle Exadata is an enterprise database platform that runs Oracle Database workloads of any scale and criticality with high performance, availability, and security. Exadata’s scale-out design employs unique optimizations that let transaction processing, analytics, artificial intelligence, and mixed workl...
As a result, the reader can see exactly what services each component provides and how it interacts with the other components in the system. By the end of this part, s/he will have witnessed the gradual development of a simple but completely functional system. The remaining four chapters then...
Foundations and Trends® in Databases(共42册),这套丛书还有 《More Modern B-Tree Techniques》《FPGA-Accelerated Analytics》《Synopses for Massive Data》《Access Control for Databases》《Secure Distributed Data Aggregation》等。 喜欢读"Architecture of a Database System"的人也喜欢 ··· Chaos Eng...
Themake dockertarget is intended only for use in our CI system and will not produce a fully working image when run locally. Using Prometheus as a Go Library Remote Write We are publishing our Remote Write protobuf independently atbuf.build. ...