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<title>RE: [smokeping-users] Smokeping performance tracking</title>
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<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Hello, <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>We have installed rrdtool 1.3 (as JonG
said we would) but smokeping gives the following error, after starting the
probes, and then dies:<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>RRDs::info
/usr/local/smokeping/var/GCC/GCC10APP51.rrd: ERROR: setting POSIX_FADV_RANDOM
on '/usr/local/smokeping/var/GCC/GCC10APP51.rrd': Success at
/usr/local/smokeping/lib/Smokeping/RRDtools.pm line 113.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Has any one seen this and know how to
resolve it.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Thanks,<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>JonB<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
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<p class=MsoNormal><b><font size=2 face=Tahoma><span lang=EN-US
style='font-size:10.0pt;font-family:Tahoma;font-weight:bold'>From:</span></font></b><font
size=2 face=Tahoma><span lang=EN-US style='font-size:10.0pt;font-family:Tahoma'>
smokeping-users-bounces@lists.oetiker.ch [mailto:smokeping-users-bounces@lists.oetiker.ch]
<b><span style='font-weight:bold'>On Behalf Of </span></b><st1:PersonName
w:st="on">Jon Greaves</st1:PersonName><br>
<b><span style='font-weight:bold'>Sent:</span></b> 12 September 2007 20:33<br>
<b><span style='font-weight:bold'>To:</span></b>
smokeping-users@lists.oetiker.ch<br>
<b><span style='font-weight:bold'>Subject:</span></b> Re: [smokeping-users]
Smokeping performance tracking</span></font><span lang=EN-US><o:p></o:p></span></p>
</div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
<p><font size=2 face="Courier New"><span style='font-size:10.0pt;font-family:
"Courier New"'>Tobi,</span></font> <o:p></o:p></p>
<p><font size=2 face="Courier New"><span style='font-size:10.0pt;font-family:
"Courier New"'>>there is significant performane to be gained by having
sufficient<br>
>cache on your box so that all active rrds stay n cache ... in<br>
>rrdtool 1.3 we did some work to reduce the 'pre rrd' cache<br>
>requirements …</span></font> <o:p></o:p></p>
<p><font size=2 face="Courier New"><span style='font-size:10.0pt;font-family:
"Courier New"'>We are going to look at deploying smokeping to a servers that
have San access so I guess diskio problems should be less of an issue but I
will look at what performance gain we can get from rrdtool 1.3</span></font><br>
<br>
<font size=2 face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New"'>>if
rrdtool does not finisch a round of updating in time, it will<br>
>say so in its logs …</span></font> <o:p></o:p></p>
<p><font size=2 face="Courier New"><span style='font-size:10.0pt;font-family:
"Courier New"'>We have seen this in the log but this really only provides a
reactive way to know you have a capacity problem it would be much nicer to see
it coming rather than waiting for it to happen.</span></font><br>
<br>
<font size=2 face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New"'>Regards</span></font>
<br>
<font size=2 face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New"'>JonG</span></font>
<o:p></o:p></p>
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