Monitoring a real-time distributed system for fault detection and identification is an extremely challenging problem. Faults may manifest themselves at a different node than where the actual error occurred, and may also be dependent on a particular sequencing of events and thus not easily reproducible. In addition the fault may be the loss of connectivity to some segment of the system, rendering a monitoring agent running in one segment of the system unable to communicate with other segments.

OCI is happy to announce the release of OpenDDS version 2.1.  OpenDDS is an open source C++ implementation of the OMG Data Distribution Service for Real-time Systems (DDS) specification. In addition to C++, OpenDDS supports Java language bindings and includes a JMS provider implementation.  The new OpenDDS 2.1 release includes new UDP and multicast transport implementations, including support for reliable multicast. A new instrumentation and monitoring application and library are available to enable run-time monitoring of OpenDDS entities and applications.