Re: Cannot run VMware Virtual Machines on GlusterFS

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Avati,

  What is /baz/ which is prefixed behind foo as /baz/foo in the logs, but does not show up in your ls -lR?

'bar' is a gluster volume.
'baz' is a directory on the volume.
The ESXi host mounts 192.168.1.136:/bar/baz on /vmfs/volumes/1668aab4-a78e64bd directory.

Existence of 'baz' directory is not required for reproduce the issue.
Would you like to see log files without 'baz' directory too?

Can you also send me ls -liR so that I can match inode numbers from the trace?

on the ESXi host:

~ # ls -liR /vmfs/volumes/1668aab4-a78e64bd
/vmfs/volumes/1668aab4-a78e64bd:
-1374929331 drwxr-xr-x    1 root     root               4096 Jun 19 06:41 foo

/vmfs/volumes/1668aab4-a78e64bd/foo:
~ #

on a Linux NFS client(CentOS 5.6 x86_64):

# ls -liR /vmfs/volumes/1668aab4-a78e64bd
/vmfs/volumes/1668aab4-a78e64bd:
total 8
2920037965 drwxr-xr-x 2 root root 4096 Jun 19 15:41 foo

/vmfs/volumes/1668aab4-a78e64bd/foo:
total 0
#

Regards,

Tomo

(2012/06/20 15:34), Anand Avati wrote:
Tomoaki,
  What is /baz/ which is prefixed behind foo as /baz/foo in the logs, but does not show up in your ls -lR? Can you also send me ls -liR so that I can match inode numbers from the trace?

Avati

On Tue, Jun 19, 2012 at 9:28 PM, Tomoaki Sato <tsato@xxxxxxxxxxxxx <mailto:tsato@xxxxxxxxxxxxx>> wrote:

    Avati,


          I saw your log and there is nothing suspicious in it. Are you sure the log captures the event where 'getcwd' returned a failure?


    Yes, I am.


        Can you also return the output of 'ls -lR of the data set' (from a dir level above) along with the getcwd and capture trace nfs logs from the full session? [and keep the trace nfs logs restricted to just these commands].


    please find attached.

    Regards,

    Tomo


    (2012/06/20 13:17), Anand Avati wrote:

        Tomosaki,
          I saw your log and there is nothing suspicious in it. Are you sure the log captures the event where 'getcwd' returned a failure? Can you also return the output of 'ls -lR of the data set' (from a dir level above) along with the getcwd and capture trace nfs logs from the full session? [and keep the trace nfs logs restricted to just these commands].

        Thanks!
        Avati

        On Tue, Jun 19, 2012 at 7:20 PM, Tomoaki Sato <tsato@xxxxxxxxxxxxx <mailto:tsato@xxxxxxxxxxxxx> <mailto:tsato@xxxxxxxxxxxxx <mailto:tsato@xxxxxxxxxxxxx>>> wrote:

            Vijay,

            Thank you for your attention to this matter.

            I could not find strace command on the ESXi hosts.
            CentOS version of strace command says "strace+ ptrace(PTRACE_TRACEME, ...): Function not implemented" on the ESXi host.

            Please find attached log file.
            This log file is smaller than the previous version and covers only the 'getcwd' period.

            Regards,

            Tomo


            (2012/06/20 10:51), Vijay Bellur wrote:

                On 06/18/2012 11:55 PM, Tomoaki Sato wrote:

                    Vijay,

                    please find attached test program and log file.

                    test-code:

                    $ cat getcwd.c
                    #include <stdio.h>
                    #include <unistd.h>

                    int main(int argc, char* argv[])
                    {
                    char cwd[1024];

                    if ( argc != 2 ) {
                    printf("usage: %s dir\n", argv[0]);
                    _exit(1);
                    }

                    if ( chdir(argv[1]) != 0 ) {
                    perror("chdir");
                    _exit(1);
                    }
                    if ( getcwd(cwd, 1024) == NULL ) {
                    perror("getcwd");
                    _exit(1);
                    }
                    printf("%s\n", getcwd(cwd, 1024));

                    _exit(0);
                    }

                    operations:

                    ~ # ./getcwd /vmfs/volumes/1668aab4-____a78e64bd/foo

                    getcwd: No such file or directory
                    ~ #


                Thanks for providing this test program. Can you please provide the output of strace -f ./getcwd /vmfs/volumes/1668aab4-____a78e64bd/foo and the corresponding nfs log file?


                -Vijay



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