This attribute points to a configuration file that defines daemon logging behavior, generally writing to the shibd.log file. If set, this overrides the logger property in the <SPConfig> parent element, but if omitted (defaulted), the parent property will take precedence if set.
If true, "global" exception handlers are used to trap crashes and other "uncontrolled" exceptions. This attempts to keep the daemon running if at all possible, but makes diagnosing bugs difficult, and can lead to unstable runtime behavior in which the service does not crash but cannot service requests either. Generally should be left off.