Previous deterministic replay systems reduce the runtime overhead by either relying on hardware support or by relaxing the determinism requirements for replay. We propose LightPlay that fulfills stricter determinism requirements with low overhead without requiring hardware or OS support. LightPlay guarantees that the memory state after each instruction instance in a replay run is the same as in...

Concern regarding extensive damage to tropical forests resulting from logging increased dramatically after World War II when mechanized logging systems developed in industrialized countries were deployed in the tropics. As a consequence, tropical foresters began developing logging procedures that were more environmentally benign, and by the 1990s, these practices began to be described as “reduc...

Logging is a central service in computing systems. It collects information about the events happening in (remote) devices and thereby provides a basis for other services within the system. However, in order to be useful, log data must be correct, for information derived from flawed sources is unreliable. In this paper, we report on ongoing work in developing a logging mechanism to securely stor...

Thisdissertation explores the implications of emergent non-volatilememory (NVM) technologies for database management systems (DBMSs). The advent of NVM will fundamentally change the dichotomy between volatile memory and durable storage in DBMSs. These new NVM devices are almost as fast as DRAM, but all writes to it are potentially persistent even after power loss. Existing DBMSs are unable to t...

An intense debate exists on the effects of post-fire salvage logging on plant community regeneration, but scant data are available derived from experimental studies. We analyzed the effects of salvage logging on plant community regeneration in terms of species richness, diversity, cover, and composition by experimentally managing a burnt forest on a Mediterranean mountain (Sierra Nevada, S Spai...

Virtual-machine logging and replay enables system administrators to analyze intrusions more completely and with greater integrity than traditional system loggers. One challenge in these types of systems is the need to log a potentially large volume of network traffic. Cooperative ReVirt adds message-logging techniques to ReVirt to reduce the amount of network traffic that needs to be logged. Co...

One of the most critical driving forces in the evolution of interfaces on the Internet has been the logging built into common Web servers and the decade-long deployment of analytics based upon this data source. Page-view logging has slowly moved to callback systems using client-side scripting to capture more aspects of the user experience. With the rise of JavaScript-based client-side interacti...

The current proliferation of ubiquitous networking (e.g. WiFi, bluetooth) along with the high penetration of the pervasive devices (smart phones, tablets) have provided a substantial boost to life-logging; a framework for the every-day recording of sensitive and personal data of individuals. Life-logging systems usually consist of resource-constrained devices (sensors). Moreover, as for every e...

To illustrate the Reactor pattern, consider the event-driven server for a distributed logging service shown in Figure 1. Client applications use this service to log information (such as error notifications, debugging traces, and status updates) in a distributed environment. In this service, logging records are sent to a central logging server. The logging server outputs the logging records to a...

Supervisory control and data acquisition systems (SCADA) are widely used in industry for supervisory control and data acquisition of industrial processes. The process can be industrial, infrastructure or facility. With the advances of electronic and software technologies, the SCADA systems are widely used in industrial plant automation. It provides an efficient tool to monitor and control equip...