[PVFS2-developers] help needed on PVFS2 file data I/O trace collection

[Peng Gu]

Hi,

On 1/18/06, Peng Gu <penggu at cse.unl.edu> wrote:
> On 1/17/06, Sam Lang <slang at mcs.anl.gov> wrote:
> > pvfs2-set-eventmask -m <mountpoint>  -a 0x4 -o 0xFFFF
> I started the server by
> $/usr/local/sbin/pvfs2-server /etc/pvfs2-fs.conf
> /etc/pvfs2-server.conf-cse-wang-server
> Then I tried the suggested command on both client side and server
> side. After that  I did some file copying like "cp /mnt/pvfs2/file1
> /mnt/pvfs2/file2" on the client side after I mounted the pvfs2 file
> system, trying to get some trace output.
> But I failed to get any output on either on the screen (stderr), or
> the log file /tmp/pvfs2-server.log ( as specified in the file
> /etc/pvfs2-fs.conf ). Where am I wrong?
I end up found the way out by using
$pvfs2-set-debugmask -m /mnt/pvfs2 "trove"
Once I did it, many READ and WRITE log messages went to my /tmp/pvfs2-server.log

Thank you everybody for your time and your invaluable suggestions!

Sincerely
Peng