On Apr 20, 2007, at 7:54 AM, Robert Milkowski wrote:
Hello eric,
Friday, April 20, 2007, 4:01:46 PM, you wrote:
ek> On Apr 18, 2007, at 9:33 PM, Robert Milkowski wrote:
Hello Robert,
Thursday, April 19, 2007, 1:57:38 AM, you wrote:
RM> Hello nfs-discuss,
RM> Does anyone have a dtrace script (or any other means) to
track which
RM> files are open/read/write (ops and bytes) by nfsd? To make
things
RM> little bit harder lets assume that local storage in on zfs,
nfsd
RM> server using nfsv3 and system is S10U3.
RM> The script would distinguish between cache read and disk read.
RM> So something like:
RM> ./nfsd_file.d
RM> CLIENT_IP OPERATION BYTES TYPE FILE
RM> X.X.X.X READ3 32768 logical /nfs/d1000/fileA
RM> ...
RM> and something like:
RM> ./nfsd_file_summ.d 100s
RM> CLIENT_IP OPERATION OPS BYTES TYPE FILE
RM> X.X.X.X READ3 230 5MB logical /nfs/d1000/
fileA
RM> X.X.X.X READ3 15 1MB physical /nfs/d1000/
fileA
RM> ...
RM>
RM>
RM>
Looks like vopstat and rfileio from DTrace toolkit is what I'm
looking
for (with some modifications)
ek> very cool, would you mind posting your dscript when you get it
working?
ek> eric
Those scripts are from DTraceToolkit!
I've just make some simple modifications like parameterized frequency,
total summary, ...
Ah yes, its the little modifications i was particularly interested
in. :)
Have you tried mixing the fsinfo probes with the dscript i wrote
awhile back to retrieve the IPv4/IPv6 address (http://blogs.sun.com/
erickustarz/entry/dscript_to_retrieve_active_nfs)?
eric
As I see Brendan hooks into proper VOP operations.
The question however is why if I want to use dtrace io provider with
zfs + nfsd I don't get file names from args[2].fi_pathname?
Perhaps fsinfo::: could help but it's not on current s10 - I hope it
will be in U4 as it looks that it works with zfs (without manually
looking into vnodes, etc.):
bash-3.00# dtrace -n fsinfo::fop_read:read'{trace(args[0]-
>fi_pathname);trace(arg1);}'|grep -v unknown
dtrace: description 'fsinfo::fop_read:read' matched 1 probe
CPU ID FUNCTION:NAME
0 65495 fop_read:read /usr/bin/
cat 8
0 65495 fop_read:read /usr/bin/
cat 52
0 65495 fop_read:read /usr/bin/
cat 224
0 65495 fop_read:read /usr/bin/
cat 17
0 65495 fop_read:read /lib/ld.so.
1 52
0 65495 fop_read:read /lib/ld.so.
1 160
0 65495 fop_read:read /home/milek/
hs_err_pid23665.log 8192
0 65495 fop_read:read /home/milek/
hs_err_pid23665.log 3777
0 65495 fop_read:read /home/milek/
hs_err_pid23665.log 0
^Cbash-3.00#
/home is on zfs.
Looks like fsinfo::: should work properly with nfsd + zfs!
--
Best regards,
Robert mailto:[EMAIL PROTECTED]
http://milek.blogspot.com
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