摘要:
A multi-tiered server management architecture is employed including an application development tier, an application operations tier, and a cluster operations tier. In the application development tier, applications are developed for execution on one or more server computers. In the application operations tier, execution of the applications is managed and sub-boundaries within a cluster of servers can be established. In the cluster operations tier, operation of the server computers is managed without concern for what applications are executing on the one or more server computers and boundaries between clusters of servers can be established. The multi-tiered server management architecture can also be employed in co-location facilities where clusters of servers are leased to tenants, with the tenants implementing the application operations tier and the facility owner (or operator) implementing the cluster operations tier.
摘要:
Methods and systems for rendering information pages are described. A page is divided into panes which are rendered by individual pane renderers. The pane renderers can be shared between pages, or even re-used across multiple applications. Rendering support components or objects are provided and can provide access to shared services or data (e.g. ads, user preferences, scripts, and styles) that might be required by multiple panes on a page. Page descriptions comprising pane renderers are created dynamically in a prescribed fashion by an application. A page renderer service in a platform then processes the page description and causes the appropriate RSOs to be called, initialized, and used by the pane renderers to render the page.
摘要:
A data services layer is disclosed which maintains a dictionary of conceptual information and physical information about the data. Machine-readable requests to access the data are in a form related to a conceptual organization of the data, and is not specific to a physical organization of the data. A machine-readable query to obtain a subset of the data is produced by referencing the dictionary of conceptual and physical information about the data. The conceptual information is obtained from an object-relational-model of the data, and the physical information indicates how the data is organized on the data storage medium. Requests are written in a conceptual query language (CQL) which substantially uses terms belonging to or derived from a natural language. CQL includes terms in the classes of names and concepts, and wherein name terms are used to describe objects in the object-relational-model of the data, and concept terms are used to specify the data subset desired. Concept terms specify Facts desired from the data, and filters and sort specifications to be applied to the Facts. In an example embodiment, the data is organized in rows, and CQL includes a select command that retrieves data in rows. A set of data representing a profile of performance characteristics related to how to retrieve data is provided, and queries are formed based at least in part on the performance characteristics.
摘要:
Model-based virtual system provisioning includes accessing a model of a workload to be installed on a virtual machine of a system as well as a model of the system. A workload refers to some computing that is to be performed, and includes an application to be executed to perform the computing, and optionally includes the operating system on which the application is to be installed. The workload model identifies a source of the application and operating system of the workload, as well as constraints of the workload, such as resources and/or other capabilities that the virtual machine(s) on which the workload is to be installed must have. An installation specification for the application is also generated, the installation specification being derived at least in part from the model of the workload and the model of the virtual system.
摘要:
A hardware and/or software facility for durably and securely storing data within a shared community storage network. A user may have a storage device that they intend to share with others in the network. All or a portion of the storage device is registered with the community storage network as a storage node. Once registered with the network, third party data may be stored on the storage node and remotely accessed by third parties. In addition, data stored on the storage device by the user may be stored in the shared community storage network by encrypting the data, adding redundancy, and distributing it to other storage nodes within the storage network. Data that is stored in the storage network is accessible to the user even if their storage device is inaccessible or fails.
摘要:
Model-based provisioning of test environments includes accessing a model of an application to be installed in a test environment of a system and further accessing a model of the system and a model of the test environment. An installation specification for the application is also generated, the installation specification being derived at least in part from the model of the application, the model of the system, and the model of the test environment.
摘要:
In accordance with certain aspects of the model-based policy application, each of a plurality of policies is associated with appropriate parts of a model of a heterogeneous system. A deployment agent is invoked to apply each of the plurality of policies to components associated with the parts of the model. An identification of a change to one of the plurality of policies is received, and the deployment agent is also invoked to apply the changed policy to selected ones of the components associated with the parts of the model.
摘要:
A modeling system permits developers of applications for distributed computer system, such as those used in server data centers or Internet data centers (IDCs), to architect their hardware and software in an abstract manner. The modeling system defines a set of components that represent abstract functional operations of the application that will eventually be physically implemented by one or more computers and one or more software programs executing on the computers. Associated with the model components is a schema that dictates how the functional operations are to be specified. From the model components, the developers can create logical, scale-independent models of the applications that may be implemented by the distributed computer system. The application is scale-independent in that the application is invariant in respect to the number of computers and software programs that my eventually be used to implement it. The application may subsequently be converted to a physical blueprint that specifies the number and type of hardware/software resources and the physical layout of the distributed computer system.
摘要:
Enforcing policy in a multi-computer service application is described. In one aspect, a scale-independent logical model of an application is generated. The application is for implementation in a distributed computing system. The scale-independent logical model includes multiple components representing logical functions of the application and intercommunication protocols. The model components are converted into one or more instances representative of physical resources used to implement the logical functions. The instances specify information such as communication ports on the physical resources and communication paths that link the physical resources.
摘要:
The present modeling technique allows context to be associated with structural elements. These structural elements are defined within a containing class (i.e., a context-supported class). Thus, knowledge that is captured about complex internal behavior of the structural elements (e.g., constraints) may be incorporated within the context-supported class without requiring business logic. The context-supported structure includes one or more parts associated with the context-supported structure through relationships. The context-supported structure may also include one or more connectors associated with the context-supported structure. The connectors connect two types of classes together to enforce a specific constraint. The two types of classes may be parts associated with the context-supported structure or other classes that are not part of the context-supported structure.