Abstract: A local application connected to a remote application over a computer network can interrupt processing of the remote application. To do so, a new communications link is opened, and an identifier of the remote process to be interrupted is passed to the remote node. The new communications link is then closed. A manager process on the remote node raises the interrupt to the desired remote application, which returns acknowledgement of the interrupt over the original connection.

Abstract: Method for reducing data loss during I/O errors and power failure during non-atomic writes to media in a transaction management system using write-ahead logging protocol. A recovery log is written during forward processing. On system restart processing, the log is traversed and a REDO executed. Recovery is effected from detected incomplete log writes or log write failures and uncommitted transactions are undone. A technique is provided in which files having I/O errors are identified, whereby subsequent restart operations are prevented from accessing these files. In one embodiment index files with such error are renamed, serving to indicate that corresponding original files contain errors, and the error index files are automatically rebuilt whereby I/O error on the files causes no data loss. The index file rebuild does not invalidate access plans related to the failed index.