公开(公告)号：US20130297592A1

公开(公告)日：2013-11-07

申请号：US13938126

申请日：2013-07-09

Applicant: Google Inc.

Inventor： Jeffrey A. Dean ,  Sanjay Ghemawat ,  Andrew B. Fikes ,  Yasushi Saito

IPC: G06F17/30

CPC classification number: G06F17/30194 ,  G06F9/5083 ,  G06F17/30212 ,  G06F17/30312

Abstract: A method of accessing data includes storing a table that includes a plurality of tablets corresponding to distinct non-overlapping table portions. Respective pluralities of tablet access objects and application objects are stored in a plurality of servers. A distinct application object and distinct tablet are associated with each tablet access object. Each application object corresponds to a distinct instantiation of an application associated with the table. The tablet access objects and associated application objects are redistributed among the servers in accordance with a first load-balancing criterion. A first request directed to a respective tablet is received from a client. In response, the tablet access object associated with the respective tablet is used to perform a data access operation on the respective tablet, and the application object associated with the respective tablet is used to perform an additional computational operation to produce a result to be returned to the client.

Abstract translation: 访问数据的方法包括存储包括对应于不同的非重叠表部分的多个片的表。 平板电脑访问对象和应用对象的多个存储在多个服务器中。 独特的应用对象和不同的平板电脑与每个平板电脑访问对象相关联。 每个应用程序对象对应于与该表相关联的应用程序的不同实例。 平板电脑访问对象和关联的应用程序对象根据第一个负载平衡标准在服务器之间重新分配。 从客户端接收到针对相应平板电脑的第一请求。 作为响应，与各个平板电脑相关联的平板电脑访问对象被用于在相应的平板电脑上执行数据访问操作，并且使用与各个平板电脑相关联的应用对象来执行附加的计算操作以产生要返回到 客户端。