The support logs maintain an internal record of events of interest from the operations of an active SDN controller. This information is the type of data a support engineer would request when troubleshooting an SDN installation.
Each controller maintains its own support logs.
log.queue.size on any controller propagates to all active controllers in the team.
Theaction gathers the set of support log file data from all active controllers in the team, and stores the data as a single compressed archive.
The log file is configured to have a maximum size of 10MB and to keep 4 previous versions). With 4 full previous versions and the one active log, the core controller logging will consume at most 50 MB of disk space. The controller allows up to five support logs; one active and four in storage:
Support logs can be exported to a file (see “Exporting the support logs ”)
Displays a listing of the most recent log messages, as determined by the currently configured queue size. For example, with a queue size of 100,lists the 100 most recent log messages.
Gathers the set of support log file data from the standalone controller or all active controllers in the team, and stores the data as a single compressed archive.
The severity level for the entry. Levels are:
In the default configuration, the ERROR, WARN, and INFO levels are recorded in the Support Logs. DEBUG and TRACE are verbose logging that are used in troubleshooting situations that might involve support engineering.
The logging level for a component that is writing to the support log can be dynamically changed using the Virgo Administrator console. For example, DEBUG level logging can be enabled for just the NodeManager configuration component.
Detailed information about the log entry.
A hexadecimal number that identifies controller that generated the log entry. When you use controller teaming, this ID enables you to identify which controller in the team generated the alert.
NOTE: The actions resulting from these choices depend on the browser and operating system, not on the controller.