Hi, Can you do a _find . | xargs touch_ and check whether brick A is self-healed? regards, On Thu, Jul 31, 2008 at 4:07 AM, Łukasz Osipiuk <lukasz@xxxxxxxxxxx> wrote: > Thanks for answers :) > > On Wed, Jul 30, 2008 at 8:52 PM, Martin Fick <mogulguy@xxxxxxxxx> wrote: > > --- On Wed, 7/30/08, Łukasz Osipiuk <lukasz@xxxxxxxxxxx> wrote: > > > > [cut] > > >> The more extreme example is: on of data bricks explodes and > >> You replace it with new one, configured as one which gone off > >> but with empty HD. This is the same as above > >> experiment but all data is gone, not just one file. > > > > AFR should actually handle this case fine. When you install > > a new brick and it is empty, there will be no metadata for > > any files or directories on it so it will self(lazy) heal. > > The problem that you described above occurs because you have > > metadata saying that your files (directory actually) is > > up to date, but the directory is not since it was modified > > manually under the hood. AFR cannot detect this (yet), it > > trusts its metadata. > > Well, either I am doing something terribly wrong or it does not handle > this case fine. > I have following configuration. > 6 bricks: A, B, C, D, E, F > On client I do > IO-CACHE( > IO-THREADS( > WRITE-BEHIND > READ_AHEAD( > UNIFY( > DATA(AFR(A,B), AFR(C,D)), NS(AFR(E,F) > ) > ) > ) > ) > ) > > I do: > 1. mount glusterfs on client > 2. on client create few files/directories on mounted glusterfs > 3. shutdown brick A > 4. delete and recreate brick A local directory > 5. startup brick A > 6. on client access all files in mounted glusterfs directory. > > After such procedure no files/directories appear in local brick A > directory? Should they or I am missing something? > > > I think the file checksuming you described is overkill for my needs. > I think I will know if one of my HD drives brakes down and I will > replace it, but I need to workaround problem with data recreation > described above. > > > -- > Łukasz Osipiuk > mailto: lukasz@xxxxxxxxxxx > > _______________________________________________ > Gluster-devel mailing list > Gluster-devel@xxxxxxxxxx > http://lists.nongnu.org/mailman/listinfo/gluster-devel > > -- Raghavendra G A centipede was happy quite, until a toad in fun, Said, "Prey, which leg comes after which?", This raised his doubts to such a pitch, He fell flat into the ditch, Not knowing how to run. -Anonymous
