Elektronika 2009-11.pdf - Instytut Systemów Elektronicznych

• multithreading within a single repair is also allowed,
• connections lasting too long may be disconnected (timed out),
• bigger arguments for corrective steps are sent in files,
• smaller ones are sent directly in invocations of those steps,
• those steps are grouped in actions, each of which resides
in a single file,
• files with actions and bigger arguments are resent over the
network to remote machines, only if their checksums differ
from checksums of their local counterparts.
The RMS database, besides storing information on the
states of repairs, stores also other information, relevant to
monitoring and repair activities, such as:
• incoming monitoring results (monitoring tree),
• the way problems and their scopes are detected (defined
as set of, already mentioned, predicates, stored in definitions
of undesired results),
• data generated by running repairs (output),
• data retrieved by them from the real world (input),
Fig. 1. Architecture of the Repair Management System
Rys. 1. Architektura Systemu Zarządzania Naprawami
Fig. 2. Flowchart of exemplary repair algorithm
Rys. 2. Przepływ sterowania w przykładowym algorytmie naprawczym
56 ELEKTRONIKA 11/2009