[Nagiosplug-help] check_disk fails on line feed

[Rasmus Plewe]

Hello,

ok, so this mail is a "bit" longer, as I will try to be as verbose as
possible with the problem:


On Mon, Dec 02, 2002 at 11:05:43AM -0500, Subhendu Ghosh wrote:
> On Fri, 29 Nov 2002, Rasmus Plewe wrote:
> > On Fri, Nov 29, 2002 at 03:22:51PM -0500, Subhendu Ghosh wrote:
> > > On Thu, 28 Nov 2002, Rasmus Plewe wrote:
> > > > > 
> > > > > I can currently live with the workaround to do a 
> > > > > ./check_disk -p "fs1 fs2 fs3" --warning=20% --critical=1% 
> > > > 
> > > > no, I can't live with this workaround. Since I do this from remote, the
> > > > command would look something like 
> > > > 
> > > > ./check_by_ssh -H host -l user -C "/remote_path/check_disk -p "fs1 fs2"
> > > > -w 20% - 1%"
> > > 
> > > escape the inner quotes:  -p\"fs1 fs2\"
> > 
> > About the first thing I did:
> > 
> > ./check_by_ssh -H cs17 -C "/remote/nagios_plugins/check_disk -p \"/ /tmp\" -w 20% -c 1%" 
> > Unable to open pipe: /usr/bin/ssh cs17 '/remote/nagios_plugins/check_disk -p "/ /tmp" -w 20% -c 1%'tts:/usr/local/nagios/libexec # 
> > 
> unable to open a pipe seems to be a different issue.  Do you have enough 
> file handles?  

I would guess. With everything else the machine is doing file handles
have never been an issue. 

> Also could you post a full output of the DF commandd so we can look at 
> integrating the multiline output...

Here we go:

cs1 #:df -h
Filesystem               size     used    avail capacity Mount on
/dev/dsk/201             248M     113M     135M     45%  /
/dev/dsk/200             500M      79M     421M     15%  /stand
/dev/dsk/202             2.0G     1.5G     428M     78%  /usr
/dev/dsk/203             3.4G     612M     2.8G     17%  /var
/dev/dsk/204             5.9G     198M     5.7G      3%  /var/sx/adm
/dev/dsk/208             1.0G     479M     521M     47%  /maint
/dev/dsk/205             2.0G     587M     1.4G     29%  /usr/opt
/dev/dsk/206             2.0G     300M     1.7G     15%  /var/bkup
/dev/dsk/207             7.8G     151M     7.7G      1%  /opt
/dev/dsk/302              59G      24M      59G      0%  /var/spool/nqs/restart
/dev/dsk/301              10G     1.2G     8.8G     11%  /tmp
/dev/dsk/400             266G      83G     183G     31%  /wrk-local
siox1:/home/ERS           12G      11G     1.4G     88%  /var/spool/ers/sharedb
donner:/export/home/dkrz
                          39G      21G      18G     53%  /nfs/donner/home/dkrz
niesel:/pf/a             4.9G     552M     4.4G     10%  /nfs/niesel/pf/a
niesel:/pf/b             4.9G     491M     4.4G      9%  /nfs/niesel/pf/b
niesel:/pf/g             4.9G     1.2G     3.7G     25%  /nfs/niesel/pf/g
niesel:/pf/u/gp          4.9G     442M     4.5G      8%  /nfs/niesel/pf/gp
niesel:/pf/u/ifm         4.9G     473M     4.5G      9%  /nfs/niesel/pf/ifm
niesel:/pf/k             513M      30M     483M      5%  /nfs/niesel/pf/k
niesel:/pf/u/uni14       4.9G     749M     4.2G     14%  /nfs/niesel/pf/uni14
niesel:/pf/u/uni16       4.1G     1.6G     2.5G     39%  /nfs/niesel/pf/uni16
regen:/pf/k              479M     167M     312M     34%  /nfs/regen/pf/k
regen:/pf/m              6.7G     4.3G     2.4G     63%  /nfs/regen/pf/m
regen:/pf/m/mo           6.7G     3.8G     2.9G     56%  /nfs/regen/pf/mo
regen:/pf/m/at           3.4G     2.1G     1.2G     63%  /nfs/regen/pf/at
peta:/pf/k                68G      64G     3.9G     94%  /nfs/peta/pf/k
cross:/pf                 49G      47G     2.0G     95%  /nfs/cross/pf
cross:/bf                 95G      44G      50G     46%  /nfs/cross/bf
/dev/dsk/513             532G     384G     147G     72%  /oldmf/1
136.172.43.200:/sx/sxbs1
                         1.1T    -3.6T     4.6T    -336%  /tmp/mnt
cs2-hs:/oldmf/2          532G     377G     155G     70%  /oldmf/2
cs3-hs:/oldmf/3          532G     389G     142G     73%  /oldmf/3
cs4-hs:/oldmf/4          532G     196G     335G     36%  /oldmf/4
cs2-hs:/oldmf/6          532G     307G     225G     57%  /oldmf/6
cs3-hs:/oldmf/7          532G     240G     292G     45%  /oldmf/7
cs4-hs:/oldmf/9          532G     401G     131G     75%  /oldmf/9
ds2-hs:/mnt/wrk-share2
                         1.0T     6.4G     1.0T      0%  /nfmnt/wrk-share2
ds1-hs:/mnt/wrk-share1
                         1.0T      20M     1.0T      0%  /nfmnt/wrk-share1
/dev/dsk/700             266G     235G      31G     88%  /pf
/dev/dsk/101             248M     165M      83M     66%  /bkup
ds1-hs:/mf/1             532G      16G     516G      3%  /mf/10
ds2-hs:/mf/2             532G      34G     498G      6%  /mf/11
ds1-hs:/mf/3             532G     127G     405G     23%  /mf/12
ds2-hs:/mf/4             532G      15G     518G      2%  /mf/13
ds1-hs:/mf/5             532G      60G     473G     11%  /mf/14
ds2-hs:/mf/6             532G     5.1G     527G      0%  /mf/15
ds1-hs:/mf/7             532G     3.4G     529G      0%  /mf/16
ds2-hs:/mf/8             532G      18G     515G      3%  /mf/17
ds1-hs:/mf/9             532G      35G     497G      6%  /mf/18
ds2-hs:/mf/10            532G      28G     504G      5%  /mf/19
ds1-hs:/mf/11            532G      25G     507G      4%  /mf/20
ds2-hs:/mf/12            532G      17G     516G      3%  /mf/21
ds1-hs:/mf/13            532G      22G     510G      4%  /mf/22
cs6-hs:/oldmf/5          532G     300G     231G     56%  /oldmf/5
cs6-hs:/oldmf/8          532G     319G     213G     59%  /oldmf/8
cs2-hs:/pool             266G     189G      77G     71%  /nfmnt/pool
ds1-hs:/pf               532G      61G     472G     11%  /tmp/pf
/dev/dsk/702             100G      23G      77G     22%  /pf/k/adm


Now:

$ ./check_by_ssh -H cs1 -l root -C "/maint/nagios_plugins/check_disk -w 20% -c 1%" 
Unable to read output:

$ ./check_by_ssh -H cs1 -l root -C "/maint/nagios_plugins/check_disk -p / -w 20% -c 1%" 
DISK OK - 

$ ./check_by_ssh -H cs1 -l root -C "/maint/nagios_plugins/check_disk -p "/ /tmp" -w 20% -c 1%" 
INPUT ERROR: Unable to parse command line

$ ./check_by_ssh -H cs1 -l root -C "/maint/nagios_plugins/check_disk -p \"/ /tmp\" -w 20% -c 1%" 
Unable to open pipe: /usr/bin/ssh -l root cs1 '/maint/nagios_plugins/check_disk -p "/ /tmp" -w 20% -c 1%'<prompt>

$ ./check_by_ssh -t 20 -H cs1 -l root -C "/maint/nagios_plugins/check_disk -p '/ /tmp' -w 20% -c 1%" 
INPUT ERROR: Unable to parse command line
[I need the "-t 20" here, otherwise I get a timeout]


So, if you can make sense of it, and even more important, know of a
solution, you're highly welcome. ;-)

A different approach: To create a simple shell script on the remote
host with the lines:

#!/bin/sh 
/maint/nagios_plugins/check_disk -w 20% -c 3% -p "/ /tmp /maint /var /opt"

returns the correct exit code, but unfortunately the exit code is not
related to the state of the disks - it issues a warning even though
three, four file systems are at 99% (different system), while
check_disk called directly shows the expected behaviour. 


As you can imagine from the df output above, I need some way to
"group" file systems for checking: Too many to really change them
individually, and too many I don't want to check, so I don't want to
simply do a check over all file systems (even if it would work, which
it doesn't). 

Lots of other questions emerged, too, but I'll save them for a time
after I've found time to do some reading first. Unfortunately I'm not
able to drop everything else and just work on Nagios for a couple of
days (but the system monitoring needs to be ready by end of last week,
of course)... 


Regards,
         Rasmus