OpenStack Compute (nova)

  1. Series juno
  2. Bug #1387543
  3. Comment #16

Comment 16 for bug 1387543

Revision history for this message
George Shuklin (george-shuklin) wrote : Re: Resize/delete combo allows to overload nova-compute

I opened question on stackoverflow: http://stackoverflow.com/questions/29494852/force-application-to-close-fd-or-cause-eio-linux

Right now there is one concern: If we are sending kill -9 to all application accessing file ('fuser -k' sends kill -9), can we by some chance to send it to nova-compute or libvirtd?

Some scenarios:
1) Concurrent calls 'create snapshot' and 'delete' from user
2) libvirtd performing scheduled tasks on image

May be we should not call fuser, but do the same (search in /proc/PID/fd) and try to narrow application list to 'scp' and 'rsync'?

I know it sounds paranoid, but I don't want to see random kill -9 on production on unspecified process list.