Re: Nagios daemon crashing frequently (extensive logs attach
Posted: Thu Jan 16, 2014 3:22 am
Hi sreinhardt,
Good to hear you feel this might work as work-around, I am getting my hopes up
I want to get the cluster stabilized so desperatly! Any fix satisfies me.
So where do you suggest to insert this line "export malloc_check_=0" in /etc/init.d/nagios ? Does the position matter? This is the file now, maybe you can point out the most logical spot. I would think right after the comments and before the first if statement.
To answer your question, here's the info:
Good to hear you feel this might work as work-around, I am getting my hopes up
I want to get the cluster stabilized so desperatly! Any fix satisfies me.So where do you suggest to insert this line "export malloc_check_=0" in /etc/init.d/nagios ? Does the position matter? This is the file now, maybe you can point out the most logical spot. I would think right after the comments and before the first if statement.
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[root@xxx]# cat /etc/init.d/nagios
#!/bin/sh
#
# chkconfig: 345 99 01
# description: Nagios network monitor
#
# File : nagios
#
# Author : Jorge Sanchez Aymar ([email protected])
#
# Changelog :
#
# 1999-07-09 Karl DeBisschop <[email protected]>
# - setup for autoconf
# - add reload function
# 1999-08-06 Ethan Galstad <[email protected]>
# - Added configuration info for use with RedHat's chkconfig tool
# per Fran Boon's suggestion
# 1999-08-13 Jim Popovitch <[email protected]>
# - added variable for nagios/var directory
# - cd into nagios/var directory before creating tmp files on startup
# 1999-08-16 Ethan Galstad <[email protected]>
# - Added test for rc.d directory as suggested by Karl DeBisschop
# 2000-07-23 Karl DeBisschop <[email protected]>
# - Clean out redhat macros and other dependencies
# 2003-01-11 Ethan Galstad <[email protected]>
# - Updated su syntax (Gary Miller)
#
# Description: Starts and stops the Nagios monitor
# used to provide network services status.
#
# Load any extra environment variables for Nagios and its plugins
if test -f /etc/sysconfig/nagios; then
. /etc/sysconfig/nagios
fi
status_nagios ()
{
if test -x $NagiosCGI/daemonchk.cgi; then
if $NagiosCGI/daemonchk.cgi -l $NagiosRunFile; then
return 0
else
return 1
fi
else
if ps -p $NagiosPID > /dev/null 2>&1; then
return 0
else
return 1
fi
fi
return 1
}
printstatus_nagios()
{
if status_nagios $1 $2; then
echo "nagios (pid $NagiosPID) is running..."
else
echo "nagios is not running"
fi
}
killproc_nagios ()
{
kill $2 $NagiosPID
}
pid_nagios ()
{
if test ! -f $NagiosRunFile; then
echo "No lock file found in $NagiosRunFile"
exit 1
fi
NagiosPID=`head -n 1 $NagiosRunFile`
}
# Source function library
# Solaris doesn't have an rc.d directory, so do a test first
if [ -f /etc/rc.d/init.d/functions ]; then
. /etc/rc.d/init.d/functions
elif [ -f /etc/init.d/functions ]; then
. /etc/init.d/functions
fi
prefix=/etc/nagios
exec_prefix=${prefix}
NagiosBin=/usr/sbin/nagios
NagiosCfgFile=/etc/nagios/nagios.cfg
NagiosStatusFile=/var/log/nagios/status.dat
NagiosRetentionFile=/var/log/nagios/retention.dat
NagiosCommandFile=/var/log/nagios/rw/nagios.cmd
NagiosVarDir=/var/log/nagios
NagiosRunFile=/var/log/nagios/nagios.lock
NagiosLockDir=/var/lock/subsys
NagiosLockFile=nagios
NagiosCGIDir=/usr/lib/nagios/cgi
NagiosUser=nagios
NagiosGroup=nagios
# Check that nagios exists.
if [ ! -f $NagiosBin ]; then
echo "Executable file $NagiosBin not found. Exiting."
exit 1
fi
# Check that nagios.cfg exists.
if [ ! -f $NagiosCfgFile ]; then
echo "Configuration file $NagiosCfgFile not found. Exiting."
exit 1
fi
# See how we were called.
case "$1" in
start)
echo -n "Starting nagios:"
$NagiosBin -v $NagiosCfgFile > /dev/null 2>&1;
if [ $? -eq 0 ]; then
su - $NagiosUser -c "touch $NagiosVarDir/nagios.log $NagiosRetentionFile"
rm -f $NagiosCommandFile
touch $NagiosRunFile
chown $NagiosUser:$NagiosGroup $NagiosRunFile
$NagiosBin -d $NagiosCfgFile
if [ -d $NagiosLockDir ]; then touch $NagiosLockDir/$NagiosLockFile; fi
echo " done."
exit 0
else
echo "CONFIG ERROR! Start aborted. Check your Nagios configuration."
exit 1
fi
;;
stop)
echo -n "Stopping nagios: "
pid_nagios
killproc_nagios nagios
# now we have to wait for nagios to exit and remove its
# own NagiosRunFile, otherwise a following "start" could
# happen, and then the exiting nagios will remove the
# new NagiosRunFile, allowing multiple nagios daemons
# to (sooner or later) run - John Sellens
#echo -n 'Waiting for nagios to exit .'
for i in 1 2 3 4 5 6 7 8 9 10 ; do
if status_nagios > /dev/null; then
echo -n '.'
sleep 1
else
break
fi
done
if status_nagios > /dev/null; then
echo ''
echo 'Warning - nagios did not exit in a timely manner'
else
echo 'done.'
fi
rm -f $NagiosStatusFile $NagiosRunFile $NagiosLockDir/$NagiosLockFile $NagiosCommandFile
;;
status)
pid_nagios
printstatus_nagios nagios
;;
checkconfig)
printf "Running configuration check..."
$NagiosBin -v $NagiosCfgFile > /dev/null 2>&1;
if [ $? -eq 0 ]; then
echo " OK."
else
echo " CONFIG ERROR! Check your Nagios configuration."
exit 1
fi
;;
restart)
printf "Running configuration check..."
$NagiosBin -v $NagiosCfgFile > /dev/null 2>&1;
if [ $? -eq 0 ]; then
echo "done."
$0 stop
$0 start
else
echo " CONFIG ERROR! Restart aborted. Check your Nagios configuration."
exit 1
fi
;;
reload|force-reload)
printf "Running configuration check..."
$NagiosBin -v $NagiosCfgFile > /dev/null 2>&1;
if [ $? -eq 0 ]; then
echo "done."
if test ! -f $NagiosRunFile; then
$0 start
else
pid_nagios
if status_nagios > /dev/null; then
printf "Reloading nagios configuration..."
killproc_nagios nagios -HUP
echo "done"
else
$0 stop
$0 start
fi
fi
else
echo " CONFIG ERROR! Reload aborted. Check your Nagios configuration."
exit 1
fi
;;
*)
echo "Usage: nagios {start|stop|restart|reload|force-reload|status|checkconfig}"
exit 1
;;
esac
# End of this script
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[root@xxx]# uname -a
Linux padm122 2.6.32-358.23.2.el6.x86_64 #1 SMP Sat Sep 14 05:32:37 EDT 2013 x86_64 x86_64 x86_64 GNU/Linux
[root@xxx]# cat /etc/redhat-release
Red Hat Enterprise Linux Server release 6.4 (Santiago)
I will do the required changes and will keep all of you posted on the behaviour of the work-around.
