cron / mrtg problem

[Robert M. Albrecht]

Hi,

I tried:

the original environment:

[root at nass ~]# export
declare -x CCACHE_DIR="/var/cache/ccache"
declare -x CCACHE_UMASK="002"
declare -x CVS_RSH="ssh"
declare -x G_BROKEN_FILENAMES="1"
declare -x HISTSIZE="1000"
declare -x HOME="/root"
declare -x HOSTNAME="nass.vorlon.lan"
declare -x INPUTRC="/etc/inputrc"
declare -x LANG="de_DE.UTF-8"
declare -x LESSOPEN="|/usr/bin/lesspipe.sh %s"
declare -x LOGNAME="root"
declare -x 
LS_COLORS="no=00:fi=00:di=01;34:ln=01;36:pi=40;33:so=01;35:bd=40;33;01:cd=40;33;01:or=01;05;37;41:mi=01;05;37;41:ex=01;32:*.cmd=01;32:*.exe=01;32:*.com=01;32:*.btm=01;32:*.bat=01;32:*.sh=01;32:*.csh=01;32:*.tar=01;31:*.tgz=01;31:*.arj=01;31:*.taz=01;31:*.lzh=01;31:*.zip=01;31:*.z=01;31:*.Z=01;31:*.gz=01;31:*.bz2=01;31:*.bz=01;31:*.tz=01;31:*.rpm=01;31:*.cpio=01;31:*.jpg=01;35:*.gif=01;35:*.bmp=01;35:*.xbm=01;35:*.xpm=01;35:*.png=01;35:*.tif=01;35:"
declare -x MAIL="/var/spool/mail/root"
declare -x OLDPWD
declare -x 
PATH="/usr/kerberos/sbin:/usr/kerberos/bin:/usr/lib/ccache:/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin"
declare -x PWD="/root"
declare -x SHELL="/bin/bash"
declare -x SHLVL="1"
declare -x SSH_ASKPASS="/usr/libexec/openssh/gnome-ssh-askpass"
declare -x TERM="xterm-color"
declare -x USER="root"

[root at nass ~]# export -n G_BROKEN_FILENAMES HISTSIZE HOME HOSTNAME INPUTRC 
CCACHE_UMASK LS_COLORS LANG LESSOPEN MAIL OLDPWD PWD SHELL SHLVL 
SSH_ASKPASS TERM USER LOGNAME CVS_RSH CCACHE_DIR

Then I removed the variables:

[root at nass ~]# export
declare -x 
PATH="/usr/kerberos/sbin:/usr/kerberos/bin:/usr/lib/ccache:/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin"

run mrtg

[root at nass ~]# /usr/bin/mrtg  /etc/mrtg/mrtg.cfg

and didn`t get an error message.

I readded the variable one by one, no error messages. I think this is 
related to cron somehow.

Does cron anything different from bash ? Can I configure cron to use roots 
environment ?

cu romal


Michal Jaegermann schrieb:
> On Fri, Feb 08, 2008 at 05:47:28PM +0100, Robert M. Albrecht wrote:
>> crontab:
> (skipped)
> 
>> shell:
> (skipped)
> 
> At least it is clear that environments are not the same. :-)
> 
>> Needs Perl LANG or something else ?
> 
> I have no idea without going through the code but, as this is
> a network application, I would be not surprised if HOSTNAME would
> be used somewhere; or maybe TERM is expected?  Possibly indirectly.
> 
> In any case you can set yourself a shell with the same environment
> which cron is using and try to run mrtg there.  If my initial guess
> is correct then you should find out pretty quickly what all this
> complaint is about.
> 
>     Michal
>