[Gluster-devel] Re: NFS reexport status
Krishna Srinivas
krishna at zresearch.com
Fri Aug 3 21:26:29 UTC 2007
Hi Brent,
Can you add no_root_squash to exports file and reexport and mount
using nfs and try to rsync as root and see if it works?
like: "/mnt/gluster *(rw,no_root_squash,sync,fsid=3)"
Thanks
Krishna
On 8/4/07, Brent A Nelson <brent at phys.ufl.edu> wrote:
> Woops, scratch that. I accidentally tested the 2nd GlusterFS directory,
> not the final NFS mount. Even with the GlusterFS reexport of the original
> GlusterFS, the issue is still present.
>
> Thanks and sorry for the confusion,
>
> Brent
>
> On Fri, 3 Aug 2007, Brent A Nelson wrote:
>
> > I do have a workaround which can hide this bug, thanks to the wonderful
> > flexibility of GlusterFS and the fact that it in itself is POSIX. If I mount
> > the GlusterFS as usual, but then use another glusterfs/glusterfsd pair to
> > export and mount it and NFS reexport THAT, the problem does not appear.
> >
> > Presumably, server-side AFR instead of client-side would also bypass the
> > issue (not tested)...
> >
> > Thanks,
> >
> > Brent
> >
> > On Fri, 3 Aug 2007, Brent A Nelson wrote:
> >
> >> I turned off self-heal on all the AFR volumes, remounted and reexported (I
> >> didn't delete the data; let me know if that is needed).
> >>
> >> du -sk /tmp/blah/* (via NFS)
> >> du: cannot access `/tmp/blah/usr0/include/c++/4.1.2/\a': No such file or
> >> directory
> >> 171832 /tmp/blah/usr0
> >> 109476 /tmp/blah/usr0-copy
> >> du: cannot access `/tmp/blah/usr1/include/sys/\337O\004': No such file or
> >> directory
> >> du: cannot access
> >> `/tmp/blah/usr1/src/linux-headers-2.6.20-16/include/asm-ia64/\v': No such
> >> file or directory
> >> du: cannot access
> >> `/tmp/blah/usr1/src/linux-headers-2.6.20-16/include/asm-ia64/&\324\004': No
> >> such file or directory
> >> du: cannot access
> >> `/tmp/blah/usr1/src/linux-headers-2.6.20-16/drivers/\006': No such file or
> >> directory
> >> 117472 /tmp/blah/usr1
> >> 58392 /tmp/blah/usr1-copy
> >>
> >> It appears that self-heal isn't the culprit.
> >>
> >> Thanks,
> >>
> >> Brent
> >>
> >> On Fri, 3 Aug 2007, Krishna Srinivas wrote:
> >>
> >>> Hi Brent,
> >>>
> >>> Can you turn self-heal off (option self-heal off) and see how it
> >>> behaves?
> >>>
> >>> Thanks
> >>> Krishna
> >>>
> >>> On 8/3/07, Brent A Nelson <brent at phys.ufl.edu> wrote:
> >>>> A hopefully relevant strace snippet:
> >>>>
> >>>> open("share/perl/5.8.8/unicore/lib/jt",
> >>>> O_RDONLY|O_NONBLOCK|O_LARGEFILE|O_DIRECTORY) = 3
> >>>> fstat64(3, {st_mode=S_IFDIR|0755, st_size=0, ...}) = 0
> >>>> fcntl64(3, F_SETFD, FD_CLOEXEC) = 0
> >>>> mmap2(NULL, 1052672, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1,
> >>>> 0) = 0xb7c63000
> >>>> getdents64(3, /* 6 entries */, 1048576) = 144
> >>>> lstat64("share/perl/5.8.8/unicore/lib/jt/C.pl", {st_mode=S_IFREG|0644,
> >>>> st_size=220, ...}) = 0
> >>>> lstat64("share/perl/5.8.8/unicore/lib/jt/U.pl", {st_mode=S_IFREG|0644,
> >>>> st_size=251, ...}) = 0
> >>>> lstat64("share/perl/5.8.8/unicore/lib/jt/D.pl", {st_mode=S_IFREG|0644,
> >>>> st_size=438, ...}) = 0
> >>>> lstat64("share/perl/5.8.8/unicore/lib/jt/R.pl", {st_mode=S_IFREG|0644,
> >>>> st_size=426, ...}) = 0
> >>>> getdents64(3, /* 0 entries */, 1048576) = 0
> >>>> munmap(0xb7c63000, 1052672) = 0
> >>>> close(3) = 0
> >>>> open("share/perl/5.8.8/unicore/lib/gc_sc",
> >>>> O_RDONLY|O_NONBLOCK|O_LARGEFILE|O_DIRECTORY) = 3
> >>>> fstat64(3, {st_mode=S_IFDIR|0755, st_size=0, ...}) = 0
> >>>> fcntl64(3, F_SETFD, FD_CLOEXEC) = 0
> >>>> mmap2(NULL, 1052672, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1,
> >>>> 0) = 0xb7c63000
> >>>> getdents64(3, 0xb7c63024, 1048576) = -1 EIO (Input/output error)
> >>>> write(2, "rsync: readdir(\"/tmp/blah/usr0/s"..., 91rsync:
> >>>> readdir("/tmp/blah/usr0/share/perl/5.8.8/unicore/lib/gc_sc"):
> >>>> Input/output
> >>>> error (5)) = 91
> >>>> write(2, "\n", 1
> >>>> ) = 1
> >>>> munmap(0xb7c63000, 1052672) = 0
> >>>> close(3) = 0
> >>>>
> >>>> Thanks,
> >>>>
> >>>> Brent
> >>>>
> >>>> On Thu, 2 Aug 2007, Brent A Nelson wrote:
> >>>>
> >>>>> NFS reexport of a unified GlusterFS seems to be working fine as of TLA
> >>>>> 409.
> >>>>> I can make identical copies of a /usr area local-to-glusterfs and
> >>>>> glusterfs-to-glusterfs, hardlinks and all. Awesome!
> >>>>>
> >>>>> However, this is not true when AFR is added to the mix (rsync
> >>>>> glusterfs-to-glusterfs via NFS reexport):
> >>>>>
> >>>>> rsync: readdir("/tmp/blah/usr0/lib/perl/5.8.8/auto/POSIX"): Input/output
> >>>>> error (5)
> >>>>> rsync: readdir("/tmp/blah/usr0/share/perl/5.8.8"): Input/output error
> >>>>> (5)
> >>>>> rsync: readdir("/tmp/blah/usr0/share/i18n/locales"): Input/output error
> >>>>> (5)
> >>>>> rsync:
> >>>>> readdir("/tmp/blah/usr0/share/locale-langpack/en_GB/LC_MESSAGES"):
> >>>>> Input/output error (5)
> >>>>> rsync: readdir("/tmp/blah/usr0/share/groff/1.18.1/font/devps"):
> >>>>> Input/output
> >>>>> error (5)
> >>>>> rsync: readdir("/tmp/blah/usr0/share/man/man1"): Input/output error (5)
> >>>>> rsync: readdir("/tmp/blah/usr0/share/man/man8"): Input/output error (5)
> >>>>> rsync: readdir("/tmp/blah/usr0/share/man/man7"): Input/output error (5)
> >>>>> rsync: readdir("/tmp/blah/usr0/share/X11/xkb/symbols"): Input/output
> >>>>> error
> >>>>> (5)
> >>>>> rsync: readdir("/tmp/blah/usr0/share/zoneinfo/right/Africa"):
> >>>>> Input/output
> >>>>> error (5)
> >>>>> rsync: readdir("/tmp/blah/usr0/share/zoneinfo/right/Asia"): Input/output
> >>>>> error (5)
> >>>>> rsync: readdir("/tmp/blah/usr0/share/zoneinfo/right/America"):
> >>>>> Input/output
> >>>>> error (5)
> >>>>> rsync: readdir("/tmp/blah/usr0/share/zoneinfo/Asia"): Input/output error
> >>>>> (5)
> >>>>> rsync: readdir("/tmp/blah/usr0/share/doc"): Input/output error (5)
> >>>>> rsync: readdir("/tmp/blah/usr0/share/consolefonts"): Input/output error
> >>>>> (5)
> >>>>> rsync: readdir("/tmp/blah/usr0/bin"): Input/output error (5)
> >>>>> rsync:
> >>>>> readdir("/tmp/blah/usr0/src/linux-headers-2.6.20-16/include/asm-sparc64"):
> >>>>> Input/output error (5)
> >>>>> rsync:
> >>>>> readdir("/tmp/blah/usr0/src/linux-headers-2.6.20-16/include/linux"):
> >>>>> Input/output error (5)
> >>>>> rsync:
> >>>>> readdir("/tmp/blah/usr0/src/linux-headers-2.6.20-16/include/asm-mips"):
> >>>>> Input/output error (5)
> >>>>> rsync:
> >>>>> readdir("/tmp/blah/usr0/src/linux-headers-2.6.20-16/include/asm-parisc"):
> >>>>> Input/output error (5)
> >>>>> file has vanished:
> >>>>> "/tmp/blah/usr0/src/linux-headers-2.6.20-16/include/asm-sparc/\#012"
> >>>>> rsync:
> >>>>> readdir("/tmp/blah/usr0/src/linux-headers-2.6.20-16-server/include/config"):
> >>>>> Input/output error (5)
> >>>>> rsync:
> >>>>> readdir("/tmp/blah/usr0/src/linux-headers-2.6.20-16-server/include/linux"):
> >>>>> Input/output error (5)
> >>>>> ...
> >>>>>
> >>>>> Any ideas? Meanwhile, I'll try to track it down in strace (the output
> >>>>> will be
> >>>>> huge, but maybe I'll get lucky)...
> >>>>>
> >>>>> Thanks,
> >>>>>
> >>>>> Brent
> >>>>>
> >>>>
> >>>>
> >>>> _______________________________________________
> >>>> Gluster-devel mailing list
> >>>> Gluster-devel at nongnu.org
> >>>> http://lists.nongnu.org/mailman/listinfo/gluster-devel
> >>>>
> >>>
> >>
> >
>
>
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