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Re: [Devmon] How to if_* graph from Devmon to Hobbit
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From: Sam A. <s_...@as...> - 2007-07-20 16:04:10
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One question regarding your note. Where can I find the body of the the
PERL script extra-rrd.pl, which you reference? I searched the system and
then googled it to no avail. Kind thanks,
-Samuel
xbgmsharp wrote:
> Hello,
>
> This mail describe how to graph all if_* data from Devmon to Hobbit.
> I am currently running hobbit 4.2.0/all-in-one patch and devmon 0.3-beta2
>
> 1)
> First you need a curently working hobbit and devmon.
>
> 2)
> Then make sure, than the file devmon/templates/modele/if_load/message
> TABLE:rrd()
> This will show data in a htmltable and add rrd information in the
> status page.
>
> In order to check, you should see RRD data information in the status
> page of the service corresponding to your devmon modele when showing
> source html.
>
> 3)
> Now make parse the data to create a rrd file (one par interfaces),
> this is done via extra-rrd.pl.
> In etc/hobbitlaunch.cfg
>
> [rrdstatus]
> ENVFILE /data/hobbit/server/etc/hobbitserver.cfg
> NEEDS hobbitd
> CMD hobbitd_channel --channel=status \
> --log=$BBSERVERLOGS/rrd-status.log hobbitd_rrd \
> --rrddir=$BBVAR/rrd \
> --extra-script=$BBHOME/ext/extra-rrd.pl \
> --extra-tests=if_load
>
> In ext/extra-rrd.pl
>
> if ( $TESTNAME eq "if_load" ) {
>
> # Analyze the message we got
> foreach $line (@input) {
> if ($line =~ /(^[A-Z].*) (\d+):(\d+)$/ ) {
>
> # The RRD dataset definitions
> print "DS:in:DERIVE:600:0:U\n";
> print "DS:out:DERIVE:600:0:U\n";
>
> # The filename
> print "if_load_$1.rrd\n";
>
> # The data
> print "$2:$3\n";
> }
> }
> }
>
> 4)
> Modify etc/hobbitgraph.cfg
>
> [if_load]
> FNPATTERN if_load(.*).rrd
> TITLE Network Traffic
> YAXIS Bits/second
> DEF:in@RRDIDX@=@RRDFN@:in:AVERAGE
> CDEF:inbytes@RRDIDX@=in@RRDIDX@,8,*
> DEF:out@RRDIDX@=@RRDFN@:out:AVERAGE
> CDEF:outbytes@RRDIDX@=out@RRDIDX@,8,*
> LINE1:inbytes@RRDIDX@#@COLOR@:@RRDPARAM@ In
> GPRINT:inbytes@RRDIDX@:LAST: %8.2lf %s (cur)
> GPRINT:inbytes@RRDIDX@:MAX: %8.2lf %s (max)
> GPRINT:inbytes@RRDIDX@:MIN: %8.2lf %s (min)
> GPRINT:inbytes@RRDIDX@:AVERAGE: %8.2lf %s (avg)\n
> LINE1:outbytes@RRDIDX@#@COLOR@:@RRDPARAM@ Out
> GPRINT:outbytes@RRDIDX@:LAST: %8.2lf %s (cur)
> GPRINT:outbytes@RRDIDX@:MAX: %8.2lf %s (max)
> GPRINT:outbytes@RRDIDX@:MIN: %8.2lf %s (avg)
> GPRINT:outbytes@RRDIDX@:AVERAGE: %8.2lf %s (avg)\n
>
>
> 4)
> In etc/hobbitserver.cfg
> Modify the following.
> See help/howtograph.html
>
> TEST2RRD="cpu=la,disk,...,if_load"
> GRAPHS="la,disk,if_load::1"
> The ::1 set the maxcount in order to make one graph form each rrd file
> create.
>
> 5)
> In etc/hobbitcgi.cfg
> Modify the following.
> See hobbitsvc.cgi man
>
> CGI_SVC_OPTS="--env=/data/hobbit/server/etc/hobbitserver.cfg
> --no-svcid --history=top --multi-grahs=if_load,if_err..."
>
> 6)
> The hardest part.
> The hobbit parsing doesn't remove html table table so you will see
> many graph link.
> In order to fix than, you need to modify the hobbit source:
>
> lib/htmllog.c
>
> patch -p0 < htmllog.path
>
> Here is the path, this only set a new counter for all if_* services.
> This is allready working for the trends colunms because, it is
> checking all rrd file in the directory.
>
> Henrik, do you have any tips to get the nice counter without editing
> the source code of htmllog.c file ?
>
> That's all folks.
>
> --Thanks for using xbgm#
> http://xbgm.sourceforge.net/
> Please feedback.
> ------------------------------------------------------------------------
>
> Index: htmllog.c
> ===================================================================
> --- htmllog.c (revision 33)
> +++ htmllog.c (working copy)
> @@ -318,6 +318,7 @@
> }
> if (rrd && graph) {
> char *p, *multikey;
> + int if_load, if_loadcount = 0;
> if (multigraphs == NULL) multigraphs = ",disk,inode,qtree,";
>
> /*
> @@ -332,7 +333,8 @@
> if (strstr(multigraphs, multikey)) {
> /* The "disk" report from the NetWare client puts a "warning light" on all entries */
> int netwarediskreport = (strstr(firstline, "NetWare Volumes") != NULL);
> -
> + if (strncmp(service, "if_", 3) == 0)
> + if_load = 1;
> /* Count how many lines are in the status message. This is needed by hobbitd_graph later */
> linecount = 0; p = restofmsg;
> do {
> @@ -347,6 +349,9 @@
> /* We found something that is not blank, so one more line */
> if (!netwarediskreport) linecount++;
> }
> + if ((if_load == 1) && (isalpha(*p)) &&
> + ((*(p+1) != 'n') && (*(p+1) != 'u') && (*(p+1) != 'l') && (*(p+1) != 'S') && (*(p+1) != 'e')))
> + if_loadcount++;
> /* Then skip forward to the EOLN */
> p = strchr(p, '\n');
> }
> @@ -357,6 +362,8 @@
> }
> xfree(multikey);
>
> + if (if_load == 1)
> + linecount = if_loadcount;
> fprintf(output, "<!-- linecount=%d -->\n", linecount);
> fprintf(output, "%s\n", hobbit_graph_data(hostname, displayname, service, color, graph, linecount, HG_WITHOUT_STALE_RRDS, HG_PLAIN_LINK));
> }
>
>
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