Robust Experiment Modify -and-
Various Other changes to get Expt Modify ready for prime time. - If assign fails on a modify, experiment will be restored to old state, *not* swapped out. - Reboot option has been improved to reboot all nodes as part of os_setup, not in separate step. - Different assign error codes result in different retry behavior for assign_wrapper (Follow's Rob's change to assign to make it pass back special code for non-retriable faults) - '64' bit in assign_wrapper exit code indicates to tbswap that db/phys state hadn't been mucked with before the exit occurred (ergo, '65' and '1' are the common return codes, though the old 4,8,16,32 are still there for assign failing.) - (tbswap still returns codes from assign wrapper) - Added 5 sec pause between assign attempts. - Cleaned up tbswap code. - Physical state backup/restore removed from tbprerun, put into swapexp. - Interfaces table now getting cleaned up correctly (Mike noticed problem) - Changed menu display in showexp to show the "modify" menu option for swapped out experiments (like it used to.) - A couple other changes. Note: Still admin-only, but I plan to change that soon. To do: - Erase expt backups in /tmp after using them. - Re-viz failed experiments.
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