Abstract: A method dynamically adjusts a log level of a transaction. The method includes: buffering the most detailed logs of a transaction having highest log level into a memory; checking if all dependency-defined transactions within a dependency list/tree for the transaction are completed; and, in response to the completion of all dependency-defined transactions within the dependency list/tree for the transaction, obtaining a log filter level for the transaction in association with the transaction results (success/failure) of dependency-defined transactions, wherein the log filter level is a new log level for the transaction.

Abstract: A method executes a preempt by a standby database appliance in a high-availability active/active appliance cluster. The appliance cluster includes a transaction processing standby group and a persistent storing standby group. The transaction processing standby group includes a primary active appliance and a standby appliance. One or more processors receive a Hello message from the primary DB appliance. The processor(s) examine a priority field in the Hello message, in order to determine a priority of the standby database appliance according to the persistent state to thereby determine whether the standby database appliance requests a preempt, where the persistent state includes a state of an application and a database of the primary DB appliance. The processor(s) implement a failover in response to the preempt request to thereby take over a duty of the primary DB appliance.

Abstract: Providing efficient data replication for a transaction processing server is provided. A notification is received from the transaction processing server which completes a transaction of a message. The notification includes a message digest and a message identifier. The message identifier in the received notification is compared with a stored message identifier. In response to a match of the comparing of the message identifier, the message digest in the received notification is compared with a stored message digest. In response to a match of the comparing of the message digest, a stored input message is directly stored in a physical storage.

Abstract: A method, a system and a computer program product for hierarchical program source management retrieve a main program from a memory and initiate a layer representing a portion of the main program for editing on the display. Program code is edited within the layer in response to detected user programming inputs. A layer abstract syntax tree corresponding to the edited program code is generated. The layer abstract syntax tree is compared with a main program abstract syntax tree and a layer file is generated including the differences between the layer abstract syntax tree and the main program abstract syntax tree.

Abstract: A method, a system and a computer program product for hierarchical program source management retrieve a main program from a memory and initiate a layer representing a portion of the main program for editing on the display. Program code is edited within the layer in response to detected user programming inputs. A layer abstract syntax tree corresponding to the edited program code is generated. The layer abstract syntax tree is compared with a main program abstract syntax tree and a layer file is generated including the differences between the layer abstract syntax tree and the main program abstract syntax tree.