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<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span
style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> Ward, Martin
[mailto:Martin.Ward@colt.net] <b><o:p></o:p></b></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-GB>Hi all,<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-GB><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-GB>I'm having trouble tracking this one down.
For many of my Xymon-monitored servers I can see the graphs on the CPU load
page and they have data in them. Yet for many others the CPU graphs are empty.
I can see the graphs but there is no data.<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-GB><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-GB>Investigation reveals that for those
servers who are missing data the .cpu file has not been updated in months, yet
when I look at the client data available it shows the load average in the
uptime section, as in:<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-GB style='font-size:10.0pt;font-family:"Courier New";
color:black'><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-GB style='font-size:10.0pt;font-family:"Courier New";
color:black'>[uptime]<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-GB style='font-size:10.0pt;font-family:"Courier New";
color:black'> 5:07pm 2 users, load average: 0.53, 0.71, 0.62<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-GB><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-GB>which is, I believe, where Xymon gets the
LA from. <o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-GB style='color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>Martin,<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>This may be related to an issue
I came across last year.<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>The (cpu load and users &
processes) graphs appear to be dependent on the exact output of the ‘uptime’
command.<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>In my case, the graphs did show
for the first 24 hours of uptime, didn’t show after 24 hours, then started
showing again after 48 hours of uptime.<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>I was finally able to isolate
this to the output of ‘uptime’ for the first full day – it showed
‘day’ not ‘days’.<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'># uptime<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'> 12:41pm up 196 </span><b><span
style='color:red'>days</span></b><span style='color:#1F497D'> 21:49, 5
users, load average: 0.23, 0.19, 0.17<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'># uptime<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'> 12:41pm up 1 </span><b><span
style='color:red'>day</span></b><span style='color:#1F497D'> 21:49, 2
users, load average: 0.06, 0.02, 0.00<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>I ‘fixed’ this by
updating hobbitclient-linux.sh and modified the output of the ‘uptime’
command replacing ‘day ‘ with ‘days ‘.<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>echo "[uptime]"<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>uptime | perl -pe "s/^(.*)
day (.*)/\1 days \2/"<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-GB style='color:#1F497D'>It appears your uptime
command does not show the ‘up x days HH:MM’.<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-GB style='color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-GB style='color:#1F497D'>Cheers,<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-GB style='color:#1F497D'>Tom Brand<o:p></o:p></span></p>
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