MRTG-Graph-hack

[b4rt]

from what i know/see from your problem (graph with 0-line) my first ideas :
(i assume there is everything "ok" with mrtg/rateup-logs as this would have been noticed on setup (eg mrtg not able to update his logs))

• ensure there is really traffic atm
• ensure enough time (some runs) passed
• ensure cron-job is invoked every 5 mins (wo errors)
• ensure fluxpoller.pl does things right (try a '/usr/local/bin/fluxpoller.pl traffic /usr/local/torrent mrtg' and check output)
• double-check mrtg.flux.conf for errors/typos (multiplier wrong or whatever)

regards,
b4rt

[kanchke]

b4rt,

sorry for the late reply, xbox had me hooked for a couple of days 

anyway, your command

Code:

netstat -e -n 2> /dev/null | grep -v root | grep -v 127.0.0.1

gave no results, instead I used

Code:

sudo netstat -a -n 2> /dev/null | grep <my.eth.ip.address>

And I cleanly obtain my torrent connections ... what's next ?
Or can I simply disable the connections-polling ?  As previously mentioned the traffic is most important to me.

thanx,
k.

[b4rt]

anyway, your command

Code:

netstat -e -n 2> /dev/null | grep -v root | grep -v 127.0.0.1

gave no results,

no results means ?
error finding netstat ? bad netstat-params ? or just not the expected result : the connection-lines.

instead I used

Code:

sudo netstat -a -n 2> /dev/null | grep <my.eth.ip.address>

And I cleanly obtain my torrent connections ... what's next ?

because tornados and fluxpoller.pl where started by the user running your webserver sudo shouldnt be needed.
i see you used the -a switch in this and no -e switch.
because the "parser" (lol) in fluxpoller.pl expects a extended netstat-output (with -e switch) this sure wont work.

to debug this further i need output of a netstat-call.

Or can I simply disable the connections-polling ?  As previously mentioned the traffic is most important to me.

of course. you can have 1 to n Graphs. its up to you how many graphs you have defined in your mrtg-config-file mrtg.flux.cfg.
so if you dont want the connections-graph (-> no more connections-polling) just delete/comment all the lines belonging to the connections-target. (the second, below traffic-target)
note: if Graphs of a target where already made you should delete the output (the .inc-file and the pngs) in the mrtg-dir (that below your docroot) or my mrtg.php will still show you these "old Graphs" even after you have deleted the targets from mrtg.flux.cfg.

regards,
b4rt

[kanchke]

Code:

netstat -e -n 2> /dev/null | grep -v root | grep -v 127.0.0.1

just displays no results at all

I used -a because -e apparently is a illegal option on my system

Code:

netstat -e     
netstat: illegal option -- e
usage: netstat [-AaLnSW] [-f protocol_family | -p protocol]
               [-M core] [-N system]
       netstat -i | -I interface [-abdhnt] [-f address_family]
               [-M core] [-N system]
       netstat -w wait [-I interface] [-d] [-M core] [-N system]
       netstat -s [-s] [-z] [-f protocol_family | -p protocol] [-M core]
       netstat -i | -I interface -s [-f protocol_family | -p protocol]
               [-M core] [-N system]
       netstat -m [-M core] [-N system]
       netstat -r [-AenW] [-f address_family] [-M core] [-N system]
       netstat -rs [-s] [-M core] [-N system]
       netstat -g [-W] [-f address_family] [-M core] [-N system]
       netstat -gs [-s] [-f address_family] [-M core] [-N system]

Never mind, I'm happy with the Traffic stats, with your help I commented out the connections polling in mrtg.flux.cfg so I got what I need 

Thanx !
k.

[b4rt]

I used -a because -e apparently is a illegal option on my system

Code:

netstat -e     
netstat: illegal option -- e

hmm, your (bsd)-netstat is different

Never mind, I'm happy with the Traffic stats, with your help I commented out the connections polling in mrtg.flux.cfg so I got what I need 

Thanx !
k.

ok, happy to hear that. (no need to write something special for your netstat ~)

regards,
b4rt

[lord_nor]

Here's the changes to make fluxpoller.pl work with freebsd.

(probably already done this)
find

Code:

  my $BIN_GREP = "/bin/grep";

replace with

Code:

  my $BIN_GREP = "/usr/bin/grep";

find

Code:

  my $BIN_AWK = "/usr/bin/awk";

add below that

Code:

  my $BIN_FSTAT = "/usr/bin/fstat";

find

Code:

  $cons = `$BIN_NETSTAT -e -p --tcp -n 2> /dev/null | $BIN_GREP -v root | $BIN_GREP -v 127.0.0.1 | $BIN_GREP -c python`;

replace with

Code:

  $cons = `$BIN_FSTAT -u www | $BIN_GREP python | grep -c tcp`;

Ta-da!

[b4rt]

Here's a patchfile that will fix fluxpoller.pl to work on a freebsd machine. There's really only two lines changed, but I'm too lazy to type the find and replace... lol

thank you lord_nor for providing that

[lord_nor]

I'm getting the following error whenever cron runs this hack.

Code:

ERROR: It looks as if you are running two copies of mrtg in parallel on
      the same config file. There is a lockfile (/usr/local/etc/mrtg/mrtg.flux.cfg_l) and it is
      is only 0 seconds old ... Check your crontab.
      (/etc/crontab and /var/spool/cron/root)

Here's my entire crontab file

Code:

# /etc/crontab - root's crontab for FreeBSD
#
# $FreeBSD: src/etc/crontab,v 1.32 2002/11/22 16:13:39 tom Exp $
#
SHELL=/bin/sh
PATH=/etc:/bin:/sbin:/usr/bin:/usr/sbin
HOME=/var/log
#
#minute hour    mday    month   wday    who     command
#
*/5     *       *       *       *       root    /usr/libexec/atrun
*/5     *       *       *       *       www     /usr/local/bin/flux-mrtg-update.sh /usr/local/etc/mrtg/flux-mrtg.conf &> /dev/null
#
# Save some entropy so that /dev/random can re-seed on boot.
*/11    *       *       *       *       operator /usr/libexec/save-entropy
#
# Rotate log files every hour, if necessary.
0       *       *       *       *       root    newsyslog
5       *       *       *       *       root    /root/maillogs
#
# Perform daily/weekly/monthly maintenance.
1       3       *       *       *       root    periodic daily
15      4       *       *       6       root    periodic weekly
30      5       1       *       *       root    periodic monthly
#
# Adjust the time zone if the CMOS clock keeps local time, as opposed to
# UTC time.  See adjkerntz(8) for details.
1,31    0-5     *       *       *       root    adjkerntz -a

so it's not running mrtg twice, clearly. Any ideas? I've never used mrtg before, so I don't really know where this could be coming from.

[b4rt]

not really, the first time i read this error-message.

maybe you have really a double crontab-entry ?

try

Code:

crontab -e

depending on your system what you see there might not be what is in /etc/crontab

[lord_nor]

doh! apparently it was in www's crontab, and also in the system crontab. I feel like an idiot now.   

[xoriath]

When I run

Code:

/usr/local/bin/flux-mrtg-update.sh /etc/mrtg/flux-mrtg.conf

it prints

Code:

-----------------------------------------------------------------------
ERROR: Mrtg will most likely not work properly when the environment
       variable LANG is set to UTF-8. Please run mrtg in an environment
       where this is not the case. Try the following command to start:

       env LANG=C /usr/bin/mrtg /etc/mrtg/mrtg.flux.cfg
-----------------------------------------------------------------------

When i run

Code:

env LANG=C /usr/bin/mrtg /etc/mrtg/mrtg.flux.cfg

I get no answer, but the graph php in TF doesn't show anything.

My mrtg.flux.cfg

Code:

# $RCSfile: mrtg.flux.cfg,v $ $Revision: 1.3 $ $Date: 2006/04/26 14:21:06 $

# set all lines after "CHANGEME" (get a list with : "grep -A 1 CHANGEME this")


# ------------------------------------------------------------------------------
# paths
# ------------------------------------------------------------------------------

# you _must_ set all 3 directory-paths. watch for permissions (!).

# CHANGEME
Logdir: /home/shared/torrent/.mrtg/
# CHANGEME
HtmlDir: /var/www/mrtg/
# CHANGEME
Imagedir: /var/www/mrtg/

And my flux-mrtg.conf

Code:

# $RCSfile: flux-mrtg.conf,v $ $Revision: 1.2 $ $Date: 2006/04/26 09:46:26 $

# set all lines after "CHANGEME" (get a list with: "grep -A 1 CHANGEME this")

# flux-path (aka "Path" in flux-settings)
# CHANGEME
FLUXPATH="/home/shared/torrent"

# path to mrtg-conf-file.
# wherever this is, ensure directory is writeable for the user running this
# script (-> user running mrtg) (mrtg creates a lockfile at its conf-file(s))
# CHANGEME
CONFFILE="/etc/mrtg/mrtg.flux.cfg"

# where is mrtg
# CHANGEME
BIN_MRTG="/usr/bin/mrtg"

I'm running TorrentFlux 2.1-b4rt-7 on a CC box

[b4rt]

ERROR: Mrtg will most likely not work properly when the environment
       variable LANG is set to UTF-8. Please run mrtg in an environment
       where this is not the case. Try the following command to start:

       env LANG=C /usr/bin/mrtg /etc/mrtg/mrtg.flux.cfg

gringo had the same error but i must admit i dont have the exact snip now how he solved it ^^
afair he did set the LANG to C in the shell-script flux-mrtg-update.sh.

so this might work, if it doesnt pls pm gringo for exact solution.

find this in flux-mrtg-update.sh:

Code:

# invoke mrtg for flux
$BIN_MRTG $CONFFILE | tee -a $FLUXPATH/.mrtg/mrtg.log

change to this:

Code:

# invoke mrtg for flux
env LANG=C $BIN_MRTG $CONFFILE | tee -a $FLUXPATH/.mrtg/mrtg.log

regards,
b4rt

[xoriath]

Ok
Now it doesn't complain about the language, but the graph doesn't build.
In the graph page, no image is forming, like in normal mrtg (i'm running one already on another page)

[b4rt]

Ok
Now it doesn't complain about the language, but the graph doesn't build.
In the graph page, no image is forming, like in normal mrtg (i'm running one already on another page)

same happened to gringo

after he fixed the lang-complain he had empty graphs.
afair it was path-related on his setup.

pls ensure you have all CHANGEME-parts setup correct.
easy to print all affected lines with:

Code:

grep -A 1 CHANGEME flux-mrtg.conf

Code:

grep -A 1 CHANGEME mrtg.flux.cfg

also please give mrtg some time.
it may be you dont see anything in 5 mins. give it at least 3 cycles (15 mins) time to startup things.
(this is no must but sometimes it may be)


regards,
b4rt

[xoriath]

Ok.
Now there are pictures forming in the mrtg girectory, but they won't show in mrtg.php