Abstract: A method for managing requests. The requests are received by a workload manager system to perform operations on data. A set of server applications is identified by the workload manager system to perform the operations in the requests based on a set of common resources used by the set of server applications. The set of server applications is in a workload group and the workload group is comprised of a plurality of application groups.

Abstract: An apparatus for managing requests. The requests are received by a workload manager system to perform operations on data. A set of server applications is identified by the workload manager system to perform the operations in the requests based on a set of common resources used by the set of server applications. The set of server applications is in a workload group and the workload group is comprised of a plurality of application groups.

Abstract: An apparatus for managing requests. The requests are received by a workload manager system to perform operations on data. A set of server applications is identified by the workload manager system to perform the operations in the requests based on a set of common resources used by the set of server applications. The set of server applications is in a workload group and the workload group is comprised of a plurality of application groups.

Abstract: A method for managing requests. The requests are received by a workload manager system to perform operations on data. A set of server applications is identified by the workload manager system to perform the operations in the requests based on a set of common resources used by the set of server applications. The set of server applications is in a workload group and the workload group is comprised of a plurality of application groups.

Abstract: A solution for monitoring a problem condition in a communications system is provided. A communications protocol implementation monitors the communications system for the problem condition. The communications protocol implementation can initiate a response based on the problem condition being present. In this manner, the communications protocol implementation provides an effective monitor for detecting and/or recovering from a problem condition in the communications system.

Abstract: In a communications network, each network node can maintain its own list of network resources in a topology database. When the state of a resource "owned" by a particular node changes, that node broadcasts a topology database update (TDU) message to adjacent nodes. Each adjacent node updates its own topology database and rebroadcasts the message. To minimize the amount of information that must be included in TDU messages when two nodes are reconnected after an outage, each node assigns flow reduction sequence numbers (FRSNs) to TDU meassages and keeps a record of the FRSN for the last TDU message sent to an adjacent node. The node also records, for each resource in its database, the FRSN of the last TDU message including that resource. When two nodes are reconnected, the sending node includes in the TDU message only those resources having a FRSN greater than the FRSN assigned to the last TDU sent to the adjacent node to which the TDU message is directed.

Abstract: A method and apparatus of releasing resources allocated to terminated sessions at a secondary data processing node. A first node transmits one or more switch messages to a second node requesting the second node to redistribute sessions on a first route between the nodes among one or more alternate routes. Each switch message identifies the sessions to be switched and an alternate route to which the sessions are to be switched. The last switch message transmitted by the first node is indicated to be the last message in some appropriate way and includes a count of the total number of sessions that have been requested to be switched. The second node accumulates a count of the total number of sessions on the first route for which it has received a switch request. The second node compares its accumulated count with the total count derived from the last switch message and releases the resources allocated to all remaining sessions on the first route in the event the counts are equal.

Abstract: Each network node in a communications network maintains its own copy of the network topology database defining network resources. Each resource record contains a "timer" field which is initially set to a maximum value but which may be decremented on a daily basis. If the timer field is decremented to zero without being reset, the node unilaterally removes the resource record from its copy of the database. The timer field will normally reach zero only for obsolete resource records since each network node responsible for a resource broadcasts a timer-resetting message for the resource (1) each time the resource status changes, (2) when the node first joins or rejoins the network, and (3) on a periodic (weekly) basis regardless of whether conditions (1) or (2) have occurred.