All config files are read when Maui is started up. Also, the schedctl -R command can be used to reconfigure the scheduler at any time, forcing it to re-read all config files before continuing (NOTE: Only available in Moab 4.0 and later). The command changeparam can be used to change individual parameter settings at any time, i.e. 'changeparam LOGLEVEL 3'. Changes made by the changeparam command are not persistent so will be overwritten the next time the config file values are loaded. The current parameter settings can be viewed at any time using the showconfig command.
Maui checkpoints its internal state. The checkpoint file records attributes in the following areas:
Node: attributes, statistics
Reservations: all aspects
Scheduler: attributes, statistics
Credentials: attributes, statistics (i.e., Credentials include user, group, account, QoS, and class)
Indicates how long unmodified data should be kept after the associated object has disappeared. ie, job priority for a job no longer detected.
Indicates path name of checkpoint file
Indicates interval between subsequent checkpoints.