<font size=2 face="sans-serif">Hi,</font><br><br><font size=2 face="sans-serif">I agree that we should potentially add
mode metrics, but for a start, I would look into mmdiag --memory and mmdiag
--tokenmgr (the latter show different output on a token server).</font><br><br><font size=2 face="sans-serif"><br>Regards,<br><br>Tomer Perry<br>Scalable I/O Development (Spectrum Scale)<br>email: tomp@il.ibm.com<br>1 Azrieli Center, Tel Aviv 67021, Israel<br>Global Tel: +1 720 3422758<br>Israel Tel: +972 3 9188625<br>Mobile: +972 52 2554625<br></font><br><br><br><br><font size=1 color=#5f5f5f face="sans-serif">From:
</font><font size=1 face="sans-serif">"Billich Heinrich
Rainer (PSI)" <heiner.billich@psi.ch></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">31/01/2019 16:56</font><br><font size=1 color=#5f5f5f face="sans-serif">Subject:
</font><font size=1 face="sans-serif">[gpfsug-discuss]
Token manager - how to monitor performance?</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">Hello,</font><br><font size=2 face="Calibri">Sorry for coming up with this never-ending
story. I know that token management is mainly autoconfigured and even the
placement of token manager nodes is no longer under user control in all
cases. Still I would like to monitor this component to see if we are close
to some limit like memory or rpc rate. Especially as we’ll do some major
changes to our setup soon.</font><br><font size=2 face="Calibri">I would like to monitor the performance
of our token manager nodes to get warned _<i>before</i>_ we get performance
issues. Any advice is welcome. </font><br><font size=2 face="Calibri">Ideally I would like collect some numbers
and pass them on to influxdb or similar. I didn’t find anything in perfmon/zimon
that seemed to match. I could imagine that numbers like “number of active
tokens” and “number of token operations” per manager would be helpful.
Or “# of rpc calls per second”. And maybe “number of open files”,
“number of token operations”, “number of tokens” for clients. And
maybe some percentage of used token memory … and cache hit ratio …</font><br><font size=2 face="Calibri">This would also help to tune – like if
a client does very many token operations or rpc calls maybe I should increase
maxFilesToCache. </font><br><font size=2 face="Calibri"> The above is just to illustrate,
as token management is complicated the really valuable metrics may be different.</font><br><font size=2 face="Calibri">Or am I too anxious and should wait and
see instead?</font><br><font size=2 face="Calibri">cheers,</font><br><font size=2 face="Calibri">Heiner</font><br><font size=2 face="Calibri"> </font><br><font size=3>Heiner Billich</font><br><font size=3>--</font><br><font size=3>Paul Scherrer Institut</font><br><font size=3>Heiner Billich
</font><br><font size=3>System Engineer Scientific Computing</font><br><font size=3>Science IT / High Performance Computing
</font><br><font size=3>WHGA/106
</font><br><font size=3>Forschungsstrasse 111</font><br><font size=3>5232 Villigen PSI</font><br><font size=3>Switzerland</font><br><font size=3> </font><br><font size=3>Phone +41 56 310 36 02</font><br><a href="mailto:heiner.billich@psi.ch"><font size=3 color=#0082bf><u>heiner.billich@psi.ch</u></font></a><font size=3></font><br><a href="https://www.psi.ch/"><font size=3>https://www.psi.ch</font></a><br><font size=3> </font><br><font size=2 face="Calibri"> </font><br><font size=2 face="Calibri"> </font><br><font size=2 face="Calibri"> </font><tt><font size=2>_______________________________________________<br>gpfsug-discuss mailing list<br>gpfsug-discuss at spectrumscale.org<br></font></tt><a href="http://gpfsug.org/mailman/listinfo/gpfsug-discuss"><tt><font size=2>http://gpfsug.org/mailman/listinfo/gpfsug-discuss</font></tt></a><tt><font size=2><br></font></tt><br><br><BR>