Hello Anatoly, Anatoly: > I can see it in the logs: > aufs au_new_inode:412:find[6289]: Warning: Un-notified UDBA or > repeatedly renamed dir, b1, xfs, m5602, hi8673526593, i36026. > > What could this mean? > Is it dangerous?
It means that aufs detects some mismatching between its cached information and the real status on the branch fs. - the file (or a dir) is "m5602" which exists (or existed) on the second branch (branch index is 1 and it is xfs), and its inode number on the branch is 8673526593. - the corresponding aufs virtual inode number is 36026. If you change "m5602" directly on xfs (by-passing aufs), then you should use "udba=notify" aufs mount option, which forces aufs to refresh its cache about the target file. This is the meaning of "Un-notified UDBA". Even if you use "udba=notify", aufs may not refresh its cache when the target is a dir and repetedly renamed. I guess this is rare though. This is the meaning of "or repeatedly renamed dir". Please read the aufs manual in detail. I don't know which version of aufs you are using, but old aufs may produce this message due to its poor implementation. J. R. Okajima ------------------------------------------------------------------------------ Benefiting from Server Virtualization: Beyond Initial Workload Consolidation -- Increasing the use of server virtualization is a top priority.Virtualization can reduce costs, simplify management, and improve application availability and disaster protection. Learn more about boosting the value of server virtualization. http://p.sf.net/sfu/vmware-sfdev2dev
