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XPLC: A Novel Protocol for Concurrency Control in XML Databases

机译:XPLC:XML数据库中的一种新颖协议,用于XML数据库中的并发控制

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Nowadays XML is widely used by many applications. XML is not only used for exchanging data among the applications but also is used to store the semi-structured data. Managing huge data stored in XML documents, emphasizes the need for XML databases. One of the most important features of a database in a multi-user environment is its concurrency control mechanism. We discuss that many concurrency control protocols found in the literature either provide a restricted concurrency level which is less than what logically could be or provide a high level of concurrency which may lead to some defects. To overcome these problems, we offer a novel locking protocol with some rich locks named "XML Path Locking by Child Consideration" (XPLC). In our approach unlike the previous ones, we consider the child of the node which we want to lock Also our locks have different granularities according to their types.
机译:如今XML被许多应用程序广泛使用。 XML不仅用于在应用程序中交换数据,还用于存储半结构化数据。管理存储在XML文档中的大数据,强调需要XML数据库。多用户环境中数据库中最重要的功能之一是其并发控制机制。我们讨论了文献中发现的许多并发控制协议提供限制的并发级别,该级别小于逻辑上可以是或提供高水平的并发性,这可能导致一些缺陷。为了克服这些问题,我们提供了一种新颖的锁定协议,其中一些名为“儿童考虑锁定的XML路径”(XPLC)的一些富有的锁。在我们的方法与以前的方法不同,我们认为我们想要锁定的节点的孩子也根据他们的类型具有不同的粒度。

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