DOCTOR: an integrated software fault injection environment for distributed real-time systems

Author

Han, Seungjae ; Shin, Kang G. ; Rosenberg, Harold A.

Author_Institution

Real-Time Comput. Lab., Michigan Univ., Ann Arbor, MI, USA

fYear

1995

fDate

24-26 Apr 1995

Firstpage

204

Lastpage

213

Abstract

The paper presents an integrated software fault injection environment (DOCTOR) which is capable of (1) generating synthetic workloads under which system dependability is evaluated, (2) injecting various types of faults with different options, and (3) collecting performance and dependability data. A comprehensive graphical user interface is also provided. The software implemented fault-injection tools supports three types of faults: memory faults, CPU faults, and communication faults. Each injected fault may be permanent, transient or intermittent. A fault-injection plan can be formulated probabilistically, or based on the past event history. The modular organization of tools is particularly designed for distributed architectures. DOCTOR is implemented on a distributed real-time system called HARTS, and it capability has been tested through numerous experiments

Keywords

computer testing; distributed processing; fault tolerant computing; formal verification; graphical user interfaces; program testing; real-time systems; software reliability; software tools; CPU faults; DOCTOR; HARTS; communication faults; dependability data COLLECTION; distributed architectures; distributed real-time systems; fault-injection plan; graphical user interface; integrated software fault injection environment; intermittent faULTS; memory faults; modular tool organization; options; past event history; performance data COLLECTION; permanent faults; probabilistic method; software implemented fault-injection tools; synthetic workload generation; system dependability; transient faults; Analytical models; Character generation; Computer science; Distributed computing; Graphical user interfaces; Hardware; History; Real time systems; System testing; Timing;

fLanguage

English

Publisher

ieee

Conference_Titel

Computer Performance and Dependability Symposium, 1995. Proceedings., International

Conference_Location

Erlangen

Print_ISBN

0-8186-7059-2

Type

conf

DOI

10.1109/IPDS.1995.395831

Filename

395831