<font size=2 face="sans-serif">Bob,</font>
<br>
<br><font size=2 face="sans-serif">I also noticed this recently. I
think it may be a simple matter of a printf()-like statement in the code
that handles "mmfsadm vfsstats" using an incorrect conversion
specifier --- one that treats the counter as signed instead of unsigned
and treats the counter as being smaller than it really is.</font>
<br>
<br><font size=2 face="sans-serif">To help confirm that hypothesis, could
you please run the following commands on the node, at the same time, so
the output can be compared:</font>
<br>
<br><font size=2 face="sans-serif"># mmfsadm vfsstats</font>
<br>
<br><font size=2 face="sans-serif"># mmfsadm eventsExporter mmpmon vfss</font>
<br>
<br><font size=2 face="sans-serif">I believe the code that handles "mmfsadm
eventsExporter mmpmon vfss" uses the correct printf()-like conversion
specifier. So, it should so good numbers where "mmfsadm vfsstats"
shows negative numbers.</font>
<br>
<br><font size=2 face="sans-serif">Regards, The Spectrum Scale (GPFS) team</font>
<br><font size=2 face="sans-serif">Eric Agar<br>
<br>
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<br>
<br>
<br>
<br><font size=1 color=#5f5f5f face="sans-serif">From:
</font><font size=1 face="sans-serif">"Oesterlin, Robert"
<Robert.Oesterlin@nuance.com></font>
<br><font size=1 color=#5f5f5f face="sans-serif">To:
</font><font size=1 face="sans-serif">gpfsug main discussion
list <gpfsug-discuss@spectrumscale.org></font>
<br><font size=1 color=#5f5f5f face="sans-serif">Date:
</font><font size=1 face="sans-serif">04/19/2017 07:16 PM</font>
<br><font size=1 color=#5f5f5f face="sans-serif">Subject:
</font><font size=1 face="sans-serif">[gpfsug-discuss]
mmfsadm dump vfsstats - negative values</font>
<br><font size=1 color=#5f5f5f face="sans-serif">Sent by:
</font><font size=1 face="sans-serif">gpfsug-discuss-bounces@spectrumscale.org</font>
<br>
<hr noshade>
<br>
<br>
<br><font size=2 face="Calibri">I assume the counter has wrapped on some
of these - would a PMR fix this? (4.2.1)</font>
<br><font size=2 face="Calibri"> </font>
<br><font size=2 face="Calibri">[root@cnt-r01r07u15 ~]# mmfsadm vfsstats</font>
<br><font size=2 face="Calibri">vfs statistics currently enabled</font>
<br><font size=2 face="Calibri">started at: Fri Jan 27 16:22:02.702 2017</font>
<br><font size=2 face="Calibri"> duration: 7091405.800 sec</font>
<br><font size=2 face="Calibri"> </font>
<br><font size=2 face="Calibri">name
calls time per call
total time</font>
<br><font size=2 face="Calibri">-------------------- -------- --------------
--------------</font>
<br><font size=2 face="Calibri">access
8472691 0.006672 56529.863993</font>
<br><font size=2 face="Calibri">close
1460175509 0.000034 49854.695358</font>
<br><font size=2 face="Calibri">create
2101110 0.073797 155055.263775</font>
<br><font size=2 face="Calibri">fsync
20 0.001214
0.024288</font>
<br><font size=2 face="Calibri">getattr
859449161 0.000118 101183.699413</font>
<br><font size=2 face="Calibri">link
2175473 0.000287
625.343799</font>
<br><font size=2 face="Calibri">lockctl
17326 0.000302
5.229828</font>
<br><font size=2 face="Calibri">lookup
200369809 0.005999 1201980.046683</font>
<br><font size=2 face="Calibri">map_lloff
220850355 0.000039 8561.791963</font>
<br><font size=2 face="Calibri">mkdir
817894 0.265793 217390.095681</font>
<br><font size=2 face="Calibri">mknod
3 0.000474
0.001422</font>
<br><font size=2 face="Calibri">open
1460169409 0.000092 134811.724068</font>
<br><font size=2 face="Calibri"><b>read
-412143552 0.001023 3971403.879911</b></font>
<br><font size=2 face="Calibri">write
164739329 0.000829 136616.948900</font>
<br><font size=2 face="Calibri">mmapRead
17108252 0.000623 10665.877349</font>
<br><font size=2 face="Calibri">readdir
142261835 0.000049 6999.159121</font>
<br><font size=2 face="Calibri">readlink
485335656 0.000004 2111.627292</font>
<br><font size=2 face="Calibri"><b>readpage
-648839570 0.000004 14346.195128</b></font>
<br><font size=2 face="Calibri">remove
4239806 0.022000 93277.124289</font>
<br><font size=2 face="Calibri">rename
350671 0.055135 19334.226490</font>
<br><font size=2 face="Calibri">rmdir
342019 0.008000
2736.037074</font>
<br><font size=2 face="Calibri">setattr
3709237 0.004573 16963.899331</font>
<br><font size=2 face="Calibri">symlink
160610 0.053061 8522.185175</font>
<br><font size=2 face="Calibri"><b>unmap
-365476297 0.000000 1735.669373</b></font>
<br><font size=2 face="Calibri">setxattr
119 0.000009
0.001042</font>
<br><font size=2 face="Calibri"><b>getxattr
-218316996 0.000154 628416.355002</b></font>
<br><font size=2 face="Calibri">removexattr
15 0.000003
0.000042</font>
<br><font size=2 face="Calibri">statfs
2624067 0.000082
214.306646</font>
<br><font size=2 face="Calibri">fastOpen
1456944934 0.000000 0.000000</font>
<br><font size=2 face="Calibri">fastClose
1515612004 0.000000 0.000000</font>
<br><font size=2 face="Calibri">fastLookup
77981387 0.000000 0.000000</font>
<br><font size=2 face="Calibri"><b>fastRead
-922882405 0.000000
0.000000</b></font>
<br><font size=2 face="Calibri">fastWrite
102606402 0.000000 0.000000</font>
<br><font size=2 face="Calibri">revalidate
899677 0.000000
0.000000</font>
<br><font size=2 face="Calibri">aio write sync 21331080
0.000061 1309.773528</font>
<br><font size=2 face="Calibri"> </font>
<br><font size=2 face="Calibri">Bob Oesterlin<br>
Sr Principal Storage Engineer, Nuance<br>
507-269-0413</font>
<br><font size=3 face="Times New Roman"> </font>
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