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<DIV dir=ltr align=left><SPAN class=838302813-24072008><FONT face=Arial><FONT
color=#0000ff><FONT size=2><SPAN class=379435914-24072008>></SPAN>You know
the data exists because you used the rrd dump tool to display
it?</FONT></FONT></FONT></SPAN></DIV>
<DIV><FONT face=Arial><FONT color=#0000ff><FONT size=2>Um, no<SPAN
class=379435914-24072008>, sorry I didn't explain myself very well</SPAN>. I
know<SPAN class=379435914-24072008> the data is being passed back to the Hobbit
server because it is displayed in the web page (see example in original email
below). The issue it that the graph that is displayed at the bottom of the page
is empty.</SPAN></FONT></FONT></FONT></DIV>
<DIV><FONT face=Arial><FONT color=#0000ff><FONT size=2><SPAN
class=379435914-24072008></SPAN></FONT></FONT></FONT> </DIV>
<DIV><FONT face=Arial><FONT color=#0000ff><FONT size=2><SPAN
class=379435914-24072008>I know that data for the other identical servers is
being passed for the same reason, but on those pages the graphed data IS
visible.</SPAN></FONT></FONT></FONT></DIV>
<DIV><FONT face=Arial><FONT color=#0000ff><FONT size=2><SPAN
class=379435914-24072008></SPAN></FONT></FONT></FONT> </DIV>
<DIV><FONT face=Arial><FONT color=#0000ff><FONT size=2><SPAN
class=379435914-24072008>I have compared the page sources and they look
identical, which is why I think it's the data.</SPAN></FONT></FONT></FONT></DIV>
<DIV><FONT face=Arial><FONT color=#0000ff><FONT size=2><SPAN
class=379435914-24072008></SPAN></FONT></FONT></FONT> </DIV>
<DIV><FONT face=Arial><FONT color=#0000ff><FONT size=2><SPAN
class=379435914-24072008>Looking at the data files I am getting somewhat
confused (or am typing commands wrong), please confirm my thoughts on
this:</SPAN></FONT></FONT></FONT></DIV>
<DIV><FONT face=Arial><FONT color=#0000ff><FONT size=2><SPAN
class=379435914-24072008></SPAN></FONT></FONT></FONT> </DIV>
<DIV><FONT face=Arial><FONT color=#0000ff><FONT size=2><SPAN
class=379435914-24072008>1. When numeric data is transferred from the Hobbit
client to the server it is stored in an rrd file thanks to the TEST2RRD
config option, mine looks like:
TEST2RRD="cpu=la,disk,inode,qtree,memory,postfixqueue=ncv,postfixdeliveries=ncv".</SPAN></FONT></FONT></FONT></DIV>
<DIV><FONT face=Arial><FONT color=#0000ff><FONT size=2><SPAN
class=379435914-24072008>2. The RRD file in 1 takes its name from the test that
the client specifies when it transfers its
data.</SPAN></FONT></FONT></FONT></DIV>
<DIV><FONT face=Arial><FONT color=#0000ff><FONT size=2><SPAN
class=379435914-24072008>3. The directory path for where the data is stored is
specified in the hobbitd channel=data using the --rrddir= parameter
(/opt/hobbit/data/rrd for me).</SPAN></FONT></FONT></FONT></DIV>
<DIV><FONT face=Arial><FONT color=#0000ff><FONT size=2><SPAN
class=379435914-24072008>4. The actual path of the RRD data file is the
directory specified in 3, plus the fully qualified host name
(mc25.lon.dcn.colt.net) plus the RRD filename specified in 2, giving me
"/opt/hobbit/data/rrd/mc25.lon.dcn.colt.net/postfixqueue.rrd".</SPAN></FONT></FONT></FONT></DIV>
<DIV><FONT face=Arial><FONT color=#0000ff><FONT size=2><SPAN
class=379435914-24072008>5. When I run "rrdtool --dump" on this file I should
get real data, and it is from this data that ALL the graphs are generated, i.e.
this file can hold data for up to 576 days.</SPAN></FONT></FONT></FONT></DIV>
<DIV><FONT face=Arial><FONT color=#0000ff><FONT size=2><SPAN
class=379435914-24072008></SPAN></FONT></FONT></FONT> </DIV>
<DIV><FONT face=Arial><FONT color=#0000ff><FONT size=2><SPAN
class=379435914-24072008>Now this is where things go
wrong:</SPAN></FONT></FONT></FONT></DIV>
<DIV><FONT face=Arial><FONT color=#0000ff><FONT size=2><SPAN
class=379435914-24072008></SPAN></FONT></FONT></FONT> </DIV>
<DIV><FONT face=Arial><FONT color=#0000ff><FONT size=2><SPAN
class=379435914-24072008>For both the machine that is failing and for any
machine that is working I get nothing when I
run:</SPAN></FONT></FONT></FONT></DIV>
<DIV><FONT face=Arial><FONT color=#0000ff><FONT size=2><SPAN
class=379435914-24072008>$ rrdtool --dump
/opt/hobbit/data/rrd/mc25.lon.dcn.colt.net/postfixqueue.rrd</SPAN></FONT></FONT></FONT></DIV>
<DIV><FONT face=Arial><FONT color=#0000ff><FONT size=2><SPAN
class=379435914-24072008>or</SPAN></FONT></FONT></FONT></DIV>
<DIV><FONT face=Arial><FONT color=#0000ff><FONT size=2><SPAN
class=379435914-24072008>$ rrdtool --dump
/opt/hobbit/data/rrd/mc25.lon.dcn.colt.net/memory.rrd</SPAN></FONT></FONT></FONT></DIV>
<DIV><FONT face=Arial><FONT color=#0000ff><FONT size=2><SPAN
class=379435914-24072008></SPAN></FONT></FONT></FONT> </DIV>
<DIV><FONT face=Arial><FONT color=#0000ff><FONT size=2><SPAN
class=379435914-24072008>yet I can view graphs for the memory usage on this
machine going back for as long as I have had this server up, so I now have no
idea what these RRD files are for.</SPAN></FONT></FONT></FONT></DIV>
<DIV><FONT face=Arial><FONT color=#0000ff><FONT size=2><SPAN
class=379435914-24072008></SPAN></FONT></FONT></FONT> </DIV>
<DIV><FONT face=Arial><FONT color=#0000ff><FONT size=2><SPAN
class=379435914-24072008>The files are being updated regularly and the have
a quantity of data in the (18KB or so).</SPAN></FONT></FONT></FONT></DIV>
<DIV><FONT face=Arial><FONT color=#0000ff><FONT size=2><SPAN
class=379435914-24072008></SPAN></FONT></FONT></FONT> </DIV>
<DIV><FONT face=Arial><FONT color=#0000ff><FONT size=2><SPAN
class=379435914-24072008>So, after all of this I am confused about how and where
the data is stored although I can say that the trends show that data was
successfully stored for about two months after the service was first started,
but then it stopped. Being that that was back in February I have no idea what
changes might have happened to the servers.</SPAN></FONT></FONT></FONT></DIV>
<DIV><FONT face=Arial><FONT color=#0000ff><FONT size=2><SPAN
class=379435914-24072008></SPAN></FONT></FONT></FONT> </DIV>
<DIV><FONT face=Arial><FONT color=#0000ff><FONT size=2><SPAN
class=379435914-24072008>8-(</SPAN></FONT></FONT></FONT></DIV>
<DIV><FONT face=Arial><FONT color=#0000ff><FONT size=2><SPAN
class=379435914-24072008></SPAN></FONT></FONT></FONT> </DIV>
<DIV><FONT face=Arial><FONT color=#0000ff><FONT size=2><SPAN
class=379435914-24072008>|\/|artin</SPAN></FONT></FONT></FONT></DIV>
<DIV><FONT face=Arial><FONT color=#0000ff><FONT size=2><SPAN
class=379435914-24072008></SPAN></FONT></FONT></FONT> </DIV></SPAN>
<BLOCKQUOTE dir=ltr style="MARGIN-RIGHT: 0px">
<DIV></DIV>
<DIV class=OutlookMessageHeader lang=en-us dir=ltr align=left><FONT
face=Tahoma size=2>-----Original Message-----<BR><B>From:</B> Hubbard, Greg L
[mailto:greg.hubbard@eds.com] <BR><B>Sent:</B> 24 July 2008
14:34<BR><B>To:</B> hobbit@hswn.dk<BR><B>Subject:</B> RE: [hobbit] Graphs are
missing data, but it's there!<BR><BR></FONT></DIV>
<DIV dir=ltr align=left><SPAN class=838302813-24072008><FONT face=Arial
color=#0000ff size=2>You know the data exists because you used the rrd dump
tool to display it?</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=838302813-24072008><FONT face=Arial
color=#0000ff size=2></FONT></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=838302813-24072008><FONT face=Arial
color=#0000ff size=2>Is the graph simply not shown at all, or is there a
"hole" in the Web page where it normally would go? ("show page source"
might have a clue).</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=838302813-24072008><FONT face=Arial
color=#0000ff size=2></FONT></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=838302813-24072008><FONT face=Arial
color=#0000ff size=2>Some ideas/shots in the dark:</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=838302813-24072008><FONT face=Arial
color=#0000ff size=2></FONT></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=838302813-24072008><FONT face=Arial
color=#0000ff size=2>a) check the logs</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=838302813-24072008><FONT face=Arial
color=#0000ff size=2></FONT></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=838302813-24072008><FONT face=Arial
color=#0000ff size=2>b) meticulously compare a "working" system to the
non-working system, and make sure that they really are
identical.</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=838302813-24072008><FONT face=Arial
color=#0000ff size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=838302813-24072008></SPAN><FONT face=Arial><FONT
color=#0000ff><FONT
size=2>c) look at the trends page for this host to see if the graph is okay there...</FONT></FONT></FONT></DIV>
<DIV><FONT face=Arial><FONT color=#0000ff><FONT
size=2></FONT></FONT></FONT> </DIV>
<DIV><FONT size=+0><FONT size=+0><FONT face=Arial><FONT color=#0000ff><FONT
size=2>E<SPAN class=838302813-24072008>tc. I am sure you know the drill
-- a big pain to look under every rock, but it has to be
done...</SPAN></FONT></FONT></FONT></FONT></FONT></DIV>
<DIV><FONT size=+0><FONT size=+0><FONT face=Arial><FONT color=#0000ff><FONT
size=2><SPAN
class=838302813-24072008></SPAN></FONT></FONT></FONT></FONT></FONT> </DIV>
<DIV><FONT size=+0><FONT size=+0><FONT face=Arial><FONT color=#0000ff><FONT
size=2><SPAN
class=838302813-24072008>GLH</SPAN></FONT></FONT></FONT></FONT></FONT></DIV>
<DIV><BR></DIV>
<BLOCKQUOTE dir=ltr style="MARGIN-RIGHT: 0px">
<DIV class=OutlookMessageHeader lang=en-us dir=ltr align=left>
<HR tabIndex=-1>
<FONT face=Tahoma size=2><B>From:</B> Ward, Martin
[mailto:Martin.Ward@colt.net] <BR><B>Sent:</B> Thursday, July 24, 2008 8:21
AM<BR><B>To:</B> hobbit@hswn.dk<BR><B>Subject:</B> RE: [hobbit] Graphs are
missing data, but it's there!<BR></FONT><BR></DIV>
<DIV></DIV>
<DIV><SPAN class=535101913-24072008><FONT face=Arial color=#0000ff
size=2>Thanks for the suggestion but that didn't work (I guess you meant
rrd).</FONT></SPAN></DIV>
<DIV><SPAN class=535101913-24072008><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=535101913-24072008><FONT face=Arial color=#0000ff
size=2>Any other ideas?</FONT></SPAN></DIV>
<DIV><SPAN class=535101913-24072008><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=535101913-24072008><FONT face=Arial color=#0000ff
size=2>|\/|</FONT></SPAN></DIV>
<BLOCKQUOTE style="MARGIN-RIGHT: 0px">
<DIV></DIV>
<DIV class=OutlookMessageHeader lang=en-us dir=ltr align=left><FONT
face=Tahoma size=2>-----Original Message-----<BR><B>From:</B> Roberts,
James [mailto:James.Roberts@hants.gov.uk] <BR><B>Sent:</B> 24 July 2008
12:47<BR><B>To:</B> hobbit@hswn.dk<BR><B>Subject:</B> RE: [hobbit] Graphs
are missing data, but it's there!<BR><BR></FONT></DIV>
<DIV dir=ltr align=left><FONT face=Arial color=#0000ff size=2><SPAN
class=992504611-24072008>you need to touch all the
rdd.</SPAN></FONT></DIV><FONT face=Arial color=#0000ff size=2></FONT><BR>
<DIV class=OutlookMessageHeader lang=en-us dir=ltr align=left>
<HR tabIndex=-1>
<FONT face=Tahoma size=2><B>From:</B> Ward, Martin
[mailto:Martin.Ward@colt.net] <BR><B>Sent:</B> 24 July 2008
12:43<BR><B>To:</B> hobbit@hswn.dk<BR><B>Subject:</B> [hobbit] Graphs are
missing data, but it's there!<BR></FONT><BR></DIV>
<DIV></DIV><!-- Converted from text/rtf format -->
<P><FONT face=Arial size=2>All,</FONT> </P>
<P><FONT face=Arial size=2>I have a problem with one machine where its
data is not being shown in the graphs even though the data exists.</FONT>
</P>
<P><FONT face=Arial size=2>The machine in question's Hobbit client sends
five pieces of numeric data (email queues) and these are displayed on the
web page for this service:</FONT></P>
<P><FONT face=Arial size=2>====</FONT> <BR><B><FONT face=Arial
size=4>Thursday July 24 11:29:11 UTC 2008</FONT></B> <BR><BR><FONT
face="Courier New" size=2>ActiveStatus: </FONT> <A
href="http://hbt0.lon.oss.colt.net/hobbit/gifs/green.gif"><U></U><U><FONT
face="Courier New" color=#0000ff size=2>green</FONT></U></A><BR><FONT
face="Courier New" size=2>ActiveQueue: 106<BR>ActiveTrend:
tendency</FONT><B> <FONT face="Courier New" size=2>rising</FONT></B><FONT
face="Courier New" size=2> with</FONT><B> <FONT face="Courier New"
size=2>-60</FONT></B><FONT face="Courier New" size=2>
mails.<BR>BounceStatus: </FONT> <A
href="http://hbt0.lon.oss.colt.net/hobbit/gifs/green.gif"><U></U><U><FONT
face="Courier New" color=#0000ff size=2>green</FONT></U></A><BR><FONT
face="Courier New" size=2>BounceQueue: 58<BR>BounceTrend:
tendency</FONT><B> <FONT face="Courier New" size=2>falling</FONT></B><FONT
face="Courier New" size=2> with</FONT><B> <FONT face="Courier New"
size=2>3</FONT></B><FONT face="Courier New" size=2>
mails.<BR>DeferStatus: </FONT> <A
href="http://hbt0.lon.oss.colt.net/hobbit/gifs/red.gif"><U></U><U><FONT
face="Courier New" color=#0000ff size=2>red</FONT></U></A><BR><FONT
face="Courier New" size=2>DeferQueue: 150464<BR>DeferTrend:
tendency</FONT><B> <FONT face="Courier New" size=2>falling</FONT></B><FONT
face="Courier New" size=2> with</FONT><B> <FONT face="Courier New"
size=2>95</FONT></B><FONT face="Courier New" size=2>
mails.<BR>CorruptStatus: </FONT> <A
href="http://hbt0.lon.oss.colt.net/hobbit/gifs/green.gif"><U></U><U><FONT
face="Courier New" color=#0000ff size=2>green</FONT></U></A><BR><FONT
face="Courier New" size=2>CorruptQueue: 0<BR>CorruptTrend: amount equal to
last measure.<BR>IncomingStatus: </FONT> <A
href="http://hbt0.lon.oss.colt.net/hobbit/gifs/red.gif"><U></U><U><FONT
face="Courier New" color=#0000ff size=2>red</FONT></U></A><BR><FONT
face="Courier New" size=2>IncomingQueue: 247049<BR>IncomingTrend: amount
equal to last measure.<BR><BR> Deferred Queue is too high but is
decreasing already.</FONT> </P>
<P><FONT face=Arial size=2>====</FONT> <BR><FONT face=Arial size=2>These
numbers change over time and the values are accurate.</FONT> </P>
<P><FONT face=Arial size=2>However, the graph that is displayed below this
data is blank. I have historic data, the files exist, and what is more I
have other machines that are configured identically to this one where the
data IS graphed correctly.</FONT></P>
<P><FONT face=Arial size=2>Hobbit graphs are a bit of a black hole to me,
can anyone suggest where I might look?</FONT> </P>
<P><FONT face=Arial size=2>|\/|artin</FONT> </P><FONT
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