attempt recovery on service CRITICAL with nrpe

[Jamin]

Since I'm checking an ldap service (iplanet) I changed the code like so.
Since I could I went ahead and returned the number of supposed processes 
running minus the grep count.

here is my modified script:
#!/bin/sh

ERS=`ps -eaf | grep -v grep | grep ns-slapd | wc -l`

if [ $ERS -gt 1 ] 
  then
    /bin/echo "LDAP OK - LDAP running $ERS processes"
    exit 0
fi

if [ $ERS -eq 0 ]
  then
    sleep 10
    ERSLATE=`ps -eaf | grep -v grep | grep ns-slapd | wc -l`
    if [ $ERSLATE -eq 0 ]
      then 
        /sbin/service ldap start
      else
        /bin/echo "LDAP OK - LDAP running $ERS processes"
        exit 0
    fi
    /bin/echo "LDAP CRITICAL - not running, attempted to restart"
    exit 2
fi

IT seems to be working great.  We shall see...  
Hopefully we get this bug tracted down why the iplanet server keeps 
crashing...
-Jamin


On Wed, 22 Jan 2003, donavan nelson wrote:

> I'll try this again and include the list :)
> 
> I would really clean up the following a bit.  
> 
> ERS=`ps -eaf | grep ersjsf | wc -l`
> 
> This removes the ambiguity of counting the grep process
> 
> ERS=`ps -ef | grep ersjsf | grep -v  "grep" -c`
> 
> Because the way your script is written, the first grep could return 0 and you
> would fall out and exit with 0.
> 
> .dn
> --
> Donavan Nelson
> 4wx Networks
> www.4wx.net
> 
> ---------- Original Message -----------
> From: Rasmus Plewe <rplewe at ess.nec.de>
> To: nagios-users at lists.sourceforge.net
> Sent: Thu, 23 Jan 2003 00:16:12 +0100
> Subject: Re: [Nagios-users] attempt recovery on service CRITICAL with nrpe
> 
> > Hello,
> > 
> > On Wed, Jan 22, 2003 at 10:23:49AM -0700, Jamin wrote:
> > > Hey all,
> > > 	I was wondering if any of you have tried to use nrpe to fix 
> > > problems on systems before any paging occurs.  Basically I have an LDAP 
> > > service running on a remote machine and I would like to set up nagios with 
> > > nrpe to try to restart the service when it detects that it has gone down.
> > 
> > if you don't mind an example without the context, where you have to
> > extract the principle yourself:
> > 
> > #!/bin/sh
> > 
> > ERS=`ps -eaf | grep ersjsf | wc -l`
> > 
> > if [ $ERS -eq 2 ] || [ $ERS -eq 3 ]
> >   then
> >     /bin/echo "ERS OK - ERS running"
> >     exit 0
> > fi
> > 
> > if [ $ERS -eq 1 ]
> >   then
> >     sleep 20
> >     ERSLATE=`ps -eaf | grep ersjsf | wc -l`
> >     if [ $ERSLATE -eq 1 ]
> >       then
> >         /etc/rc2.d/S99ers start
> >       else
> >         /bin/echo "ERS OK - ERS running" 
> >         exit 0 
> >     fi
> >     /bin/echo "ERS CRITICAL - not running, attempted to restart"
> >     exit 2
> > fi
> > 
> > Regards,
> >          Rasmus
> > 
> > -------------------------------------------------------
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> ------- End of Original Message -------
> 
> 
> 
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Think about it.  When I get slobering drunk I sometimes wake up face down
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                                                  -- March 12th, 1999
----------------------------------------------------------------------



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Can't afford IT training? All 2003 ictp students receive scholarships.
Get hands-on training in Microsoft, Cisco, Sun, Linux/UNIX, and more.
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