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Werner Rehm

Masoud Aghadavoodi Jolfaei

Guenter Zachmann

Thomas Becker

Carl Philipp Staszkiewicz

Martin Hartig

Edgar Willi Lott

Helmut Prestel

Volker Wiechers

Andreas Blumenthal

Rolf Hammer

Kai Baumgarten

Wolfgang G Mueller

Achim Braemer

Wolfgang Roeder

Christian Goldbach

Matthias Rinck

Wolfgang Baur

Jochen Müller

Björn Friedmann

Florian Föbel

According to one general aspect, a method for managing a plurality of different tenants on a shared computing infrastructure including at least one application server apparatus may include associating a tenant with a plurality of services, wherein each service provides a set of actions that the service is configured to perform. In some embodiments, the method may include associating at least one tenant runlevel for each associated service with the tenant. In various embodiments, the method may include, when the application server apparatus executes a service for the tenant, determining the tenant runlevel associated with the tenant, and managing the set of actions configured to be performed by the service based at least in part upon the tenant runlevel associated with the tenant and the service.

Application server runlevel framework

Coordinating persisted data in a distributed system, in which persisted data is stored with identifiers that indicate a hierarchical relationship of the persisted data with a business scenario. When operation data is stored as a record of a transaction within the distributed system, a root identifier (ID) and a connection ID can be added to the operational data record. The root ID indicates a source endpoint of the transaction, and the connection ID indicates a communication message from the source endpoint to the destination endpoint related to the transaction. A persisted data coordination engine can access persisted data in the distributed system and generate a business scenario transaction tree based on the root ID and the connection ID. A map of the business scenario transaction tree can then be created and reported.

Aggregating persisted operational data in a distributed environment

Dynamically isolating application servers, wherein only active application servers are indicated to client applications to prevent access to inactive application servers by the client applications. A central server of a distributed system determines a state of application servers in a system, and generates a list of application servers that includes all application servers of the system including an indication of the state of the application servers. The central server also generates a filtered list of application servers that excludes inactive application servers or application servers in an inactive mode. The filtered list is passed to client applications, which enables the client applications to only access the active application servers, but not access the inactive application servers.

Isolated application server

A system, computer program product and method of processing function calls in a distributed application environment are provided. A number of function calls for communication from a sending application to a receiving application are queued in a database. Dependencies among at least a portion of the function calls that are being queued are determined while the function calls are stored in the queues. A schedule of execution of the function calls is then generated based on the determined dependencies.

Queued asynchronous remote function call dependency management

A system and method for connection failover. A plurality of virtual machines connect to a proxy using a protocol library. The proxy establishes a connection to a gateway. A user context including a conversation identifier is stored. The proxy continues a conversation with a second virtual machine based on the conversation identifier and user context if a first virtual machine fails when the conversation is in a ready for failover state.

Virtualization and high availability of network connections

Growing community of inventors

Heidelberg, Germany

Werner Rehm