摘要:
Systems, methods, apparatus and articles of manufacture are disclosed for tracking, propagation and matching of messages pertaining to the interest in and availability of services across autonomous service domains In one embodiment of the invention, a system of distributed, federated service domains in a service-oriented environment is provided wherein each service domain comprises: a plurality of locally provided services; a plurality of service requesters; and a service registry comprising descriptions of: one or more locally provided services; and one or more requested services, each of the requested services being one of: a fulfilled reference to a foreign service; and an unfulfilled reference to a foreign service.
摘要:
An embodiment of the invention provides a method for multi-tenant enabling a service, where the service includes a plurality of service components. Rules are received from a provider of the service, wherein the rules include rules for isolating the service components and rules for sharing the service components. The service components are matched with virtualization environments and/or physical environments based on the rules. The virtualization environments include at least one isolation container and/or at least one shared container. The service components are stored in the virtualization environments and/or the physical environments based on the matching. The service components are mapped to the at least one isolation container of the virtualization environments, the at least one shared container of the virtualization environments, and/or the physical environments based on the storing of the service components.
摘要:
Techniques for cache management including cache replacement are provided. In one aspect, a distributed caching technique of the invention comprises the use of a central cache and one or more local caches. The central cache communicates with the one or more local caches and coordinates updates to the local caches, including cache replacement. The invention also provides techniques for adaptively determining holding times associated with data storage applications such as those involving caches.
摘要:
Systems, methods, apparatus and articles of manufacture are disclosed for tracking, propagation and matching of messages pertaining to the interest in and availability of services across autonomous service domains. In one embodiment of the invention, a system of distributed, federated service domains in a service-oriented environment is provided wherein each service domain comprises: a plurality of locally provided services; a plurality of service requesters; and a service registry comprising descriptions of: one or more locally provided services; and one or more requested services, each of the requested services being one of: a fulfilled reference to a foreign service; and an unfulfilled reference to a foreign service.
摘要:
Techniques for improved cache management are provided. In particular, the invention provides techniques for improving the task of updating a cache by efficiently and intelligently combining and controlling cache update operations. For example, a technique may comprise the following steps. A set of keys is determined such that at least one key in the set corresponds to an object in an unknown state. Requests to keys in the set are suspended while the cache is being updated. That is, the set of keys is set to an offline status, i.e., not accepting any request for a key in the set. Then, the set is placed back to an online status, i.e., accepting requests for a key in the set, after the update to the cache is complete.
摘要:
An embodiment of the invention provides a method for multi-tenant enabling a service, where the service includes a plurality of service components. Rules are received from a provider of the service, wherein the rules include rules for isolating the service components and rules for sharing the service components. The service components are matched with virtualization environments and/or physical environments based on the rules. The virtualization environments include at least one isolation container and/or at least one shared container. The service components are stored in the virtualization environments and/or the physical environments based on the matching. The service components are mapped to the at least one isolation container of the virtualization environments, the at least one shared container of the virtualization environments, and/or the physical environments based on the storing of the service components.
摘要:
Techniques for serving data to a plurality of clients in a client-server environment are provided. In one aspect of the invention, the technique provides a plurality of versions of data in which different versions have different overheads associated therewith. Individual clients are assigned to one of a plurality of quality-of-service classes. Requests are satisfied so that a client belonging to a high quality-of-service class is given preferential access to data versions which require higher overheads to serve.
摘要:
Techniques for improved cache management including cache replacement are provided. In one aspect, a distributed caching technique of the invention comprises the use of a central cache and one or more local caches. The central cache communicates with the one or more local caches and coordinates updates to the local caches, including cache replacement. The invention also provides techniques for adaptively determining holding times associated with data storage applications such as those involving caches.
摘要:
Techniques are disclosed for load balancing in networks such as those networks handling telephony applications. By way of example, a method for directing requests associated with calls to servers in a system comprised of a network routing calls between a plurality of nodes wherein a node participates in a call as a caller or a receiver and wherein a load balancer sends requests associated with calls to a plurality of servers comprises the following steps. A request associated with a node belonging to a group including a plurality of nodes is received. A server is selected to receive the request. A subsequent request is received. A determination is made whether or not the subsequent request is associated with a node belonging to the group. The subsequent request is sent to the server based on determining that the subsequent request is associated with a node belonging to the group.
摘要:
Techniques are disclosed for processing requests in a data processing system. While the principles of the invention are not limited to a particular domain, they are particularly suitable for use in an electronic trading system. By way of example of one aspect of the invention, a method for directing requests to at least one node in a system comprising multiple nodes and a plurality of requests comprises associating a number to each request, assigning at least one number to each node so as to balance a load across the nodes, and sending a request to a node based on the number associated to the request. Various other aspects are disclosed.