Abstract: System and method for the dynamic configuration of replicated database servers. Embodiments may provide a mechanism to dynamically and automatically replace lost server nodes with a pool node to maintain a necessary or desired level of replication. Some embodiments may provide a mechanism or mechanisms to dynamically and automatically increase the number of server nodes to meet an increase in demand, and to dynamically and automatically decrease the number of server nodes during periods of decreased demand. To maintain consistency among the database replicas, some embodiments may provide a mechanism or mechanisms for synchronizing the database replicas on the server nodes. In one embodiment, the nodes may be peer nodes in a peer-to-peer network, and the pool nodes may be a peer group.

Abstract: A technique in accordance with one embodiment of the invention uses an adaptive algorithm to obtain UDAPL event messages. According to one aspect, a process repetitively performs the following steps as long as the process expects to receive at least one event message. By polling the event message queue at least once, the process determines whether the queue is empty. If the queue is empty, then the process blocks until specified criteria have been satisfied. Alternatively, if the queue is not empty, the process reads an event message from the queue. After the process has either read an event message from the event message queue or finished blocking, the foregoing steps are repeated if the process still expects to receive at least one more event message. According to one aspect, when the process blocks, the process blocks only until a specified number of event messages have arrived in the queue.

Abstract: System and method for the unique naming of resources in networked environments including peer-to-peer network environments. Embodiments may be used to generate network resource identifiers that uniquely identify resources such as processes over time and across the networked environment. One embodiment may be implemented as a resource name generator that generates unique identifiers for resources in networked environments. One embodiment may generate unique network resource identifiers for processes from information including, but not limited to, a host address that uniquely identifies on the network the host machine of the resource for which the unique network resource identifier is being generated, a current time (e.g. obtained from the host machine or alternatively from an external source such as an atomic time server), and a process identifier of the process that uniquely identifies the process among current processes on the host machine.

Abstract: System and method for dynamic loading of remote classes. Using embodiments, remote classes may be loaded dynamically by a default class loader without the use of separate, custom class loaders. The remote class loader mechanism may locate on remote systems classes needed by code executing on the local system but not locally stored, and which therefore cannot be located and loaded by the default class loader. After locating the classes, the remote class loader mechanism may obtain copies of the classes and save them to a location indicated by the class path of the default class loader. The default class loader can then locate and load the classes from the location indicated by the class path.

Abstract: System and method for submitting and performing computational tasks in a distributed heterogeneous networked environment. Embodiments may allow tasks to be submitted and run in parallel on a network of heterogeneous computers implementing a variety of operating environments. In one embodiment, a user on an originating node may advertise code on the network. Peer nodes that respond to the advertisement may receive the code. A job to be executed by the code may be split into separate tasks to distributed to the peer nodes that received the code. These tasks may be advertised on the network. Tasks may be assigned to peer nodes that respond to the task advertisements. The peer nodes may then work on the assigned tasks. Once a peer node's work on a task is completed, the peer node may return the results of the task to the originating node.

Abstract: System and method for dynamic loading of remote classes. Using embodiments, remote classes may be loaded dynamically by a default class loader without the use of separate, custom class loaders. The remote class loader mechanism may locate on remote systems classes needed by code executing on the local system but not locally stored, and which therefore cannot be located and loaded by the default class loader. After locating the classes, the remote class loader mechanism may obtain copies of the classes and save them to a location indicated by the class path of the default class loader. The default class loader can then locate and load the classes from the location indicated by the class path.

Abstract: System and method for the unique naming of resources in networked environments including peer-to-peer network environments. Embodiments may be used to generate network resource identifiers that uniquely identify resources such as processes over time and across the networked environment. One embodiment may be implemented as a resource name generator that generates unique identifiers for resources in networked environments. One embodiment may generate unique network resource identifiers for processes from information including, but not limited to, a host address that uniquely identifies on the network the host machine of the resource for which the unique network resource identifier is being generated, a current time (e.g. obtained from the host machine or alternatively from an external source such as an atomic time server), and a process identifier of the process that uniquely identifies the process among current processes on the host machine.

Abstract: System and method for submitting and performing computational tasks in a distributed heterogeneous networked environment. Embodiments may allow tasks to be submitted and run in parallel on a network of heterogeneous computers implementing a variety of operating environments. In one embodiment, a user on an originating node may advertise code on the network. Peer nodes that respond to the advertisement may receive the code. A job to be executed by the code may be split into separate tasks to distributed to the peer nodes that received the code. These tasks may be advertised on the network. Tasks may be assigned to peer nodes that respond to the task advertisements. The peer nodes may then work on the assigned tasks. Once a peer node's work on a task is completed, the peer node may return the results of the task to the originating node.

Abstract: The present invention utilizes peer groups in a distributed architecture to decentralize its task dispatching and post-processing functions and to provide the ability to manage and run many different applications simultaneously, in an efficient and reliable manner. Jobs may be submitted to a task dispatcher or to a monitor which distributes the jobs to task dispatchers. Through a series of processes, the task dispatchers may then distribute the jobs to workers. This allows work to be distributed without utilizing a centralized server.

Abstract: The present invention utilizes peer groups in a distributed architecture to decentralize its task dispatching and post-processing functions and to provide the ability to manage and run many different applications simultaneously, in an efficient and reliable manner. Jobs may be submitted to a task dispatcher or to a monitor which distributes the jobs to task dispatchers. Through a series of processes, the task dispatchers may then distribute the jobs to workers. This allows work to be distributed without utilizing a centralized server.