Haizea

Haizea currently operates entirely in memory. This is acceptable when running simulations, but not when running as a backend scheduler for OpenNebula, where the server might crash and losing all the information on requested and scheduled leases would not be acceptable. Haizea needs to be able to save all the scheduling data structures to disk, and must also be able to recover from a crash (i.e., not just load the structures back into memory, but also check if the schedule has to be changed).