Abstract:
Provided are methods, apparatus and computer programs for monitoring operational data relating to a sequence of data processing operations in a network of data processing units. In response to specified boundaries for data gathering, operational data is selectively gathered into discrete data partitions for a desired time period, a desired set of processing nodes, and/or a desired set of process executions. A set of event listeners invoke operations of a data gatherer in response to events within a processing sequence and the data gatherer allocates operational data to different ones of a set of discrete logical data containers in response to notifications from the event listeners. The data collection is responsive to system events such as a collection interval expiry to end data collection for a first partition and start data collection for a second partition.
Abstract:
A method for resolving a unit of work involving a plurality of participants, the method comprising the steps of: generating logic comprising an identifier generator; aggregating the logic with an owning application of a unit of work; and in response to the owning application initiating the unit of work, generating, by the identifier generator, an identifier associated with the unit of work.
Abstract:
In a workload managed system comprising a plurality of server processes each capable of supporting a given program entity, such as an Enterprise JavaBeansTM specified stateful session bean, a stateful session bean instance is passivated, by writing it to a bean store, on completion of a unit of work. On next use the session bean is reactivated, by reading it from the bean store, in any one of the plurality of servers thereby allowing workload management for stateful session beans. A routing table is maintained, in non-volatile mass storage, that contains location information for units of work and stateful session bean instances, used to maintain unit of work-server affinity for the lifetime of the unit of work. Stateful session beans instances are associated with ID keys that include a flag that is used to indicate whether or not the routing table contains location information for the bean instance.
Abstract:
A transaction processing method, system and computer program product for processing applications comprising multiple component transactions. A transaction failure of a component transaction causes a reliable admission o f failure by means of a failure indicator to be made available to one or more further transactions. The failure indicator is stored in recoverable storage , so that its effect can survive system failure and recovery.
Abstract:
A transaction processing method, system and computer program product for processing applications comprising multiple component transactions. A transaction failure of a component transaction causes a reliable admission of failure by means of a failure indicator to be made available to one or more further transactions. The failure indicator is stored in recoverable storage, so that its effect can survive system failure and recovery.
Abstract:
A transaction processing method, system and computer program product for processing applications comprising multiple component transactions. A transaction failure of a component transaction causes a reliable admission of failure by means of a failure indicator to be made available to one or more further transactions. The failure indicator is stored in recoverable storage, so that its effect can survive system failure and recovery.
Abstract:
A transaction processing method, system and computer program product for processing applications comprising multiple component transactions. A transaction failure of a component transaction causes a reliable admission of failure by means of a failure indicator to be made available to one or more further transactions. The failure indicator is stored in recoverable storage, so that its effect can survive system failure and recovery.
Abstract:
A transaction processing method, system and computer program product for processing applications comprising multiple component transactions. A transaction failure of a component transaction causes a reliable admission of failure by means of a failure indicator to be made available to one or more further transactions. The failure indicator is stored in recoverable storage, so that its effect can survive system failure and recovery.
Abstract:
A transaction processing arrangement for processing applications comprising multiple component transactions. A transaction failure of a component transaction causes, 302, a reliable admission of failure by means of a failure indicator to be made available to one or more further transactions. The failure indicator is stored in recoverable storage, so that its effect can survive system failure and recovery. The failed transaction is backed out, 303.
Abstract:
A transaction processing method, system and computer program product for processing applications comprising multiple component transactions. A transaction failure of a component transaction causes a reliable admission of failure by means of a failure indicator to be made available to one or more further transactions. The failure indicator is stored in recoverable storage, so that its effect can survive system failure and recovery.