Military Communications and Information Technology: A Trusted ...

Chapter 1: Concepts and Solutions for Communications and Information Systems
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3. MSMQ: Microsoft Messaging Queue (MSMQ) [7] is a message queuing
implementation provided by Microsoft in Windows operating systems
which allows applications running on separate servers/processes to communicate
in a failsafe manner. MSMQ stores the messages in its own store.
The maximum limit of this store is configurable and this will be configured
according to the performance of Log Storing Service,
4. Log Storing Service: The log storing service is a local windows service for
reading logs from MSMQ periodically and writing them to the Log database.
5. AirC2IS Log & Audit DB: AirC2IS Log & Audit Database is an independent
database for storing logs and audits.
6. Log Management Service: Log Management Service is a service for viewing
and managing logs located in AirC2IS Log & Audit DB.
LOGS is composed of three main components at the server side Remote
Logging Service, an MSMQ and Log Storing Service. The logging flow of LOGS
can be seen in Fig. 5.
Figure 5. Logging flow at the server side
In Fig. 5, (1) Remote Logging Service passes operational logs into an MSMQ.
Since AirC2IS provides a centralized logging architecture, MSMQ is located here to
avoid concurrency and locking issues. (2) This MSMQ is configured so that it passes
the logs to Log Storing Service periodically. (3) After these logs are read from
the queue, they are written by the Log Storing Service to the log & audit database.
Of course LOGS includes all the necessary capabilities expected from and
enterprise level system like configurable logging levels or log categorization. With
such a modular approach we have achieved to build a SOA based modular logging
system that can be consumed centrally by AirC2IS applications, portal module
and integration module. This design gives necessary flexibility while maintaining
the system since all the logging behavior can be configured and managed centrally.