Abstract: In a distributed computer system with cluster architecture, a number of service requests are redirected from a first instance of the cluster to a second instance of the cluster for execution. A software patch is applied to one or more software components running on an application server node of the first instance of the cluster. A number of service requests are redirected from the second instance of the cluster to the first instance of the cluster for execution. The software patch is applied on the one or more software components running on an application server node of the second instance of the cluster. A number of new service requests are directed to the upgraded second instance of the cluster for processing.

Abstract: A method and a system are described that involve obtaining information about a plurality of inbox objects, wherein each inbox object is linked to another inbox object via a set of operations, each operation having a priority. The set of operations are executed on a subset of the plurality of inbox objects to generate a modified subset of the plurality of inbox objects. The modified subset is scanned to extract a list of files. The extracted files are used by a maintenance procedure to replace files in a system with older information and thus to update the system.

Abstract: A system and a method for installing software upgrades in a distributed computer system with no downtime. In a distributed computer system with cluster architecture, a number of service requests are redirected from a first instance of the cluster to a second instance of the cluster for execution. An execution in progress of a service request is also redirected from the first instance of the cluster to the second instance of the cluster. The execution in progress proceeds from a state that is saved on a public store by the first instance of the cluster. A software patch is applied to one or more software components running on an application server node of the first instance of the cluster. A number of service requests are redirected from the second instance of the cluster to the first instance of the cluster for execution. An execution in progress of a service request is also redirected from the second instance of the cluster to the upgraded first instance of the cluster.

Abstract: A method and a system are described that involve delivering latest hotfixes with a support package stack. In one embodiment, the method includes receiving a selection of a stack of update components, the stack to be applied on a product and receiving correction data for an update component of the stack, the correction data being available on a software provider system. The method also includes detecting the correction data for the update component. Further, the method includes applying the correction data on the update component in the stack. In one embodiment, the system includes a stack of update components, the stack to be applied on a product and correction data for an update component from the stack of update components, the correction data being available on a software provider system.

Abstract: Described herein are a system and a method for multi-functional software solution updates, which use a deployment order template. The deployment order template contains a plurality of action instructions and deployable component definitions. The method calculates an individual deployment sequence for each specific update scenario according to a plurality of deployable components available for update and the deployment order template. If some deployable components require as a prerequisite the execution of some steps, these steps are executed prior to the update of the depending components. If some deployable components require the execution of some steps after they have been updated, these steps are executed after the update occurs. If some of the deployable components specified in the deployment order template are not available for update, the deployment sequence skips the steps associated with these deployable component.

Abstract: A method and a system are described that involve obtaining information about a plurality of inbox objects, wherein each inbox object is linked to another inbox object via a set of operations, each operation having a priority. The set of operations are executed on a subset of the plurality of inbox objects to generate a modified subset of the plurality of inbox objects. The modified subset is scanned to extract a list of files. The extracted files are used by a maintenance procedure to replace files in a system with older information and thus to update the system.

Abstract: A method and system to invoke business logic via a remote interface is described. The remote interface is used as a single point of entry to the business logic for both local and remote connectivity.

Abstract: A method and system to create a logical hierarchy of log files is described. The method records data about each event occurring during a maintenance procedure in a first order log file. Detailed information about the event is redirected to a further order log file. In some case, the hierarchical nature allows the event data to be analyzed and the error causing the event to be corrected without human intervention.