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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'>Error #5 is strange – this seems to
indicate that something else has started a second copy of MRTG. Are you
starting MRTG using crontabs or a service controller that is incorrectly
thinking MRTG has stopped and attempts to restart it, causing this confusion?
This may cause locking issues preventing updates.<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'>Error #6 is indicating that the SNMP read
of the remote device is returning ‘undef’ – IE it is getting
no response to the SNMP query. If this is happening a <st1:place w:st="on">LOT</st1:place>
(IE on all checks after things go wrong) then it would indicate a network issue
– possibly a firewall or access control is blocking you via an adaptive
rule? (Unlikely but possible). <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'>FYI, we are monitoring over 15000 metrics
on over 700 devices and do not experience this problem, although we are using a
home-grown multi-thread scheduler.<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'>Steve<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'>
mrtg-bounces@lists.oetiker.ch [mailto:mrtg-bounces@lists.oetiker.ch] <b><span
style='font-weight:bold'>On Behalf Of </span></b>Alex Koueik<br>
<b><span style='font-weight:bold'>Sent:</span></b> Wednesday, 2 September 2009
1:09 a.m.<br>
<b><span style='font-weight:bold'>To:</span></b> <st1:PersonName w:st="on">mrtg@lists.oetiker.ch</st1:PersonName><br>
<b><span style='font-weight:bold'>Subject:</span></b> [mrtg] number of
monitored routers is it related to MRTG stopping RRDB update?</span></font><font
size=3 face="Times New Roman"><span lang=EN-US style='font-size:12.0pt;
font-family:"Times New Roman"'><o:p></o:p></span></font></p>
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<p class=MsoNormal><font size=2 face=Calibri><span style='font-size:11.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Calibri><span lang=EN-US style='font-size:
11.0pt'>Hi,<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Calibri><span lang=EN-US style='font-size:
11.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Calibri><span lang=EN-US style='font-size:
11.0pt'>We are currently monitoring 300 routers. Is there anyone monitoring a
higher number of devices with MRTG RRDB?<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Calibri><span lang=EN-US style='font-size:
11.0pt'>Our problem is that MRTG server stops updating the RRDBs while the MRTG
process is still running.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Calibri><span lang=EN-US style='font-size:
11.0pt'>We tried het below:<o:p></o:p></span></font></p>
<p class=msolistparagraph style='text-indent:-18.0pt'><font size=2
face=Calibri><span lang=EN-US style='font-size:11.0pt'>1-</span></font><font
size=1 face="Times New Roman"><span lang=EN-US style='font-size:7.0pt;
font-family:"Times New Roman"'> </span></font><span
lang=EN-US>Stopped and restarted the MRTG processes, RDDBs are updated for a
period and then stopped again.<o:p></o:p></span></p>
<p class=msolistparagraph style='text-indent:-18.0pt'><font size=2
face=Calibri><span lang=EN-US style='font-size:11.0pt'>2-</span></font><font
size=1 face="Times New Roman"><span lang=EN-US style='font-size:7.0pt;
font-family:"Times New Roman"'> </span></font><span
lang=EN-US>Increased the child processes (Forks) from 4 to 12 processes, RDDBs
updated for a period and then stopped again.<o:p></o:p></span></p>
<p class=msolistparagraph style='text-indent:-18.0pt'><font size=2
face=Calibri><span lang=EN-US style='font-size:11.0pt'>3-</span></font><font
size=1 face="Times New Roman"><span lang=EN-US style='font-size:7.0pt;
font-family:"Times New Roman"'> </span></font><span
lang=EN-US>We installed a carbon copy of MRTG on another machine the problem
occurred on both machines at different times.<o:p></o:p></span></p>
<p class=msolistparagraph style='text-indent:-18.0pt'><font size=2
face=Calibri><span lang=EN-US style='font-size:11.0pt'>4-</span></font><font
size=1 face="Times New Roman"><span lang=EN-US style='font-size:7.0pt;
font-family:"Times New Roman"'> </span></font><span
lang=EN-US>We debugged snmp on some of the routers during the outage, they were
not receiving any snmp requests from MRTG.<o:p></o:p></span></p>
<p class=msolistparagraph style='text-indent:-18.0pt'><font size=2
face=Calibri><span lang=EN-US style='font-size:11.0pt'>5- We are
getting from messages log: “</span></font><font size=2 face="Courier New"><span
lang=EN-US style='font-size:10.0pt;font-family:"Courier New"'>ERROR: I Quit!
Another copy of mrtg seems to be running. Check
/data/mrtg-2/cfg/mrtg.pid”<o:p></o:p></span></font></p>
<p class=msolistparagraph style='text-indent:-18.0pt'><font size=2
face=Calibri><span lang=EN-US style='font-size:11.0pt'>6- In the
MRTG debug we are getting the following : <o:p></o:p></span></font></p>
<p class=msolistparagraph style='text-indent:36.0pt'><font size=2 face=Calibri><span
lang=EN-US style='font-size:11.0pt'>“</span></font><font size=2
face="Courier New"><span lang=EN-US style='font-size:10.0pt;font-family:"Courier New"'>ERROR:
Target[route1][_IN_] ' $target->[14]{$mode} ' did not eval into defined
data”<o:p></o:p></span></font></p>
<p class=msolistparagraph style='text-indent:36.0pt'><font size=2
face="Courier New"><span lang=EN-US style='font-size:10.0pt;font-family:"Courier New"'><o:p> </o:p></span></font></p>
<p class=MsoNormal style='margin-left:36.0pt;text-indent:36.0pt;text-autospace:
none'><font size=2 face="Courier New"><span lang=EN-US style='font-size:10.0pt;
font-family:"Courier New"'>“SNMPGET Problem for 1.3.6.1.2.1.31.1.1.1.6.1
1.3.6.1.2.1.31.1.1.1.10.1 on <a
href="mailto:community@xxx.xxx.xxx.xxx::::1:2:v4only">community@xxx.xxx.xxx.xxx::::1:2:v4only</a><o:p></o:p></span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face="Courier New"><span
lang=EN-US style='font-size:10.0pt;font-family:"Courier New"'>
at /data/mrtg-2/bin/mrtg line 2149<o:p></o:p></span></font></p>
<p class=msolistparagraph style='text-indent:36.0pt'><font size=2
face="Courier New"><span lang=EN-US style='font-size:10.0pt;font-family:"Courier New"'>2009-09-01
00:13:47 -- --snpo: SNMPfound -- 'undef', 'undef'”<o:p></o:p></span></font></p>
<p class=msolistparagraph style='text-indent:36.0pt'><font size=2
face="Courier New"><span lang=EN-US style='font-size:10.0pt;font-family:"Courier New"'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Calibri><span lang=EN-US style='font-size:
11.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Calibri><span lang=EN-US style='font-size:
11.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Calibri><span lang=EN-US style='font-size:
11.0pt'>OS: Red Hat Enterprise Linux ES release 4 (Nahant) 3.4.3-9.EL4<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Calibri><span lang=EN-US style='font-size:
11.0pt'>MRTG: mrtg-2.15.1<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Calibri><span lang=EN-US style='font-size:
11.0pt'>RRDtool: rrdtool-1.2.19<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Calibri><span lang=EN-US style='font-size:
11.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Calibri><span lang=EN-US style='font-size:
11.0pt'>Any pointers on where the problem is, is highly appreciated.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Calibri><span lang=EN-US style='font-size:
11.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Calibri><span lang=EN-US style='font-size:
11.0pt'>Best regards,<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Calibri><span lang=EN-US style='font-size:
11.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Calibri><span lang=EN-US style='font-size:
11.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal><b><font size=2 face=Calibri><span lang=EN-US
style='font-size:11.0pt;font-weight:bold'>Alex Koueik<o:p></o:p></span></font></b></p>
<p class=MsoNormal><b><font size=2 face=Calibri><span lang=EN-US
style='font-size:11.0pt;font-weight:bold'>NavLink<o:p></o:p></span></font></b></p>
<p class=MsoNormal><font size=2 face=Calibri><span lang=EN-US style='font-size:
11.0pt'><o:p> </o:p></span></font></p>
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