On Wed, 2010-09-08 at 10:41 +0200, Louis Rilling wrote: > I think that this should be solved by a file substitution facility combined > with > an ability to ignore "unsupported files" at checkpoint. > File substitution is the ability to tell sys_restart() to substitute some of > caller's file descriptors to checkpointed file descriptors. > Ignoring "unsupported files" means that the checkpoint could record that a > given > file descriptor was shared by some files_struct, but the file descriptor > itself > is not checkpointed because of various reasons, like file descriptor outside > the container, unsupported file systems, etc. >
Metacluster (old IBM proprietary C/R solution) had also a similar mechanism. This is the only sensible way to C/R a container with inherited descriptors. > Both of those mechanisms have been developed in Kerrighed, and Matthieu (in > Cc) > should start a discussion about this in the next weeks. > Matthieu doesn't appear on the Cc line... > Thanks, > > Louis > Regards. -- Gregory Kurz [email protected] Software Engineer @ IBM/Meiosys http://www.ibm.com Tel +33 (0)534 638 479 Fax +33 (0)561 400 420 "Anarchy is about taking complete responsibility for yourself." Alan Moore. _______________________________________________ Containers mailing list [email protected] https://lists.linux-foundation.org/mailman/listinfo/containers _______________________________________________ Devel mailing list [email protected] https://openvz.org/mailman/listinfo/devel
