#!/bin/sh
#
#
# SGE startup script
#
#___INFO__MARK_BEGIN__
##########################################################################
#
# The Contents of this file are made available subject to the terms of
# the Sun Industry Standards Source License Version 1.2
#
# Sun Microsystems Inc., March, 2001
#
#
# Sun Industry Standards Source License Version 1.2
# =================================================
# The contents of this file are subject to the Sun Industry Standards
# Source License Version 1.2 (the "License"); You may not use this file
# except in compliance with the License. You may obtain a copy of the
# License at http://gridengine.sunsource.net/Gridengine_SISSL_license.html
#
# Software provided under this License is provided on an "AS IS" basis,
# WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING,
# WITHOUT LIMITATION, WARRANTIES THAT THE SOFTWARE IS FREE OF DEFECTS,
# MERCHANTABLE, FIT FOR A PARTICULAR PURPOSE, OR NON-INFRINGING.
# See the License for the specific provisions governing your rights and
# obligations concerning the Software.
#
# The Initial Developer of the Original Code is: Sun Microsystems, Inc.
#
# Copyright: 2001 by Sun Microsystems, Inc.
#
# All Rights Reserved.
#
##########################################################################
#___INFO__MARK_END__
#
# This script can be called with the following arguments:
#
# start start qmaster or shadowd
# stop Terminates qmaster if we are on the master machine.
# restart equivalent to stop followed by start
# status check if daemon(s) running (obeys -qmaster, -qmaster)
# -qmaster only act on qmaster
# -shadowd start act on shadwod if found applicable
# -migrate shuts down qmaster if it is running
# on another host and start the daemons on this host
#
# If the file "primary_qmaster" in the $SGE_ROOT/$SGE_CELL/common
# exists and it contains the hostname of the current machine and qmaster
# is running on another host it will be shut down and started on this host
#
# Unix commands which may be used in this script:
# cat cut tr ls grep awk sed basename
#
# This script requires the script $SGE_ROOT/util/arch
# Customization can be placed in /etc/default/sgemaster or
# /etc/sysconfig/sgemaster (according to OS conventions) , which is sourced
# after other setup.
PATH=/bin:/usr/bin:/sbin:/usr/sbin
#---------------------------------------------------------------------------
# The following lines provide the necessary info for adding a startup script
# according to the Linux Standard Base Specification (LSB) which can
# be found at:
#
# http://www.linuxfoundation.org/spec/booksets/LSB-Core-generic/LSB-Core-generic/initscrcomconv.html
#
### BEGIN INIT INFO
# Provides: SGEMASTER
# Required-Start: $network $remote_fs
# Required-Stop: $network $remote_fs
# Default-Start: 3 5
# Default-Stop: 0 1 2 6
# Description: start Grid Engine qmaster, shadowd
### END INIT INFO
# chkconfig: 35 95 3
#---------------------------------------------------------------------------
SGE_ROOT=/opt/SGE; export SGE_ROOT
SGE_CELL=default; export SGE_CELL
unset SGE_QMASTER_PORT
unset SGE_EXECD_PORT
ARCH=`$SGE_ROOT/util/arch`
# library path setting required only for architectures where RUNPATH is not supported
[ -d $SGE_ROOT/lib/$ARCH ] &&
case $ARCH in
sol*|lx*)
;;
*)
shlib_path_name=`$SGE_ROOT/util/arch -lib`
old_value=`eval echo '$'$shlib_path_name`
if [ x$old_value = x ]; then
eval $shlib_path_name=$SGE_ROOT/lib/$ARCH
else
eval $shlib_path_name=$old_value:$SGE_ROOT/lib/$ARCH
fi
export $shlib_path_name
;;
esac
#Include SMF if available
NO_SMF=1
if [ -f /lib/svc/share/smf_include.sh ]; then
. /lib/svc/share/smf_include.sh
smf_present
NO_SMF=$?
fi
[ -f /etc/default/sgemaster ] && . /etc/default/sgemaster
[ -f /etc/sysconfig/sgemaster ] && . /etc/sysconfig/sgemaster
#---------------------------------------------------------------------------
# Shutdown
# Send SIGTERM to process name $1 with pid in file $2
#
Shutdown()
{
name=$1
pidfile=$2
if [ -f $pidfile ]; then
pid=`cat $pidfile`
maxretries=20
i=0
while [ $i -lt $maxretries ]; do
$utilbin_dir/checkprog $pid $name > /dev/null
if [ "$?" = 0 ]; then
#We keep killing Qmaster so that child processes get killed
kill $pid
else
return 0
fi
sleep 2
i=`expr $i + 1`
done
kill -9 $pid
return $?
fi
}
#---------------------------------------------------------------------------
# QmasterSpoolDir
# Return qmasters spool directory
#
QmasterSpoolDir()
{
qma_spool_dir=`grep qmaster_spool_dir \
$SGE_ROOT/$SGE_CELL/common/bootstrap | \
awk '{ print $2 }'`
echo $qma_spool_dir
}
HostCompare()
{
host1=$1
host2=$2
ignore_fqdn=true
if [ -f $SGE_ROOT/$SGE_CELL/common/bootstrap ]; then
ignore_fqdn_txt=`grep ignore_fqdn $SGE_ROOT/$SGE_CELL/common/bootstrap | awk '{print $2}'`
case "$ignore_fqdn_txt" in
[fF][aA][lL][sS][eE])
ignore_fqdn=false
;;
esac
fi
if [ "$ignore_fqdn" = true ]; then
host1=`echo $host1 | cut -f 1 -d .`
host2=`echo $host2 | cut -f 1 -d .`
fi
#translate hostname to lower, because hostname are case insensitive
host1=`echo $host1 | tr "[A-Z]" "[a-z]"`
host2=`echo $host2 | tr "[A-Z]" "[a-z]"`
if [ "$host1" = "$host2" ]; then
echo 0
else
echo 1
fi
}
#---------------------------------------------------------------------------
# CheckIfQmasterHost
# If our hostname given in $1 is the same as in the "act_qmaster" file
# echo "true" else echo "false"
#
CheckIfQmasterHost()
{
host=$1
act_qmaster=`cat $SGE_ROOT/$SGE_CELL/common/act_qmaster`
if [ `HostCompare $host $act_qmaster` -eq 0 ]; then
echo true
else
echo false
fi
}
#---------------------------------------------------------------------------
# CheckIfPrimaryQmasterHost
# Check if our hostname given in $1 is the same as in the
# "primary_qmaster" file
# echo true if there is our hostname else echo false
#
CheckIfPrimaryQmasterHost()
{
host=$1
fname=$SGE_ROOT/$SGE_CELL/common/primary_qmaster
if [ -f $fname ]; then
primary_qmaster=`cat $fname`
if [ `HostCompare $host $primary_qmaster` -eq 0 ]; then
echo true
else
echo false
fi
else
echo false
fi
}
#---------------------------------------------------------------------------
# CheckIfShadowMasterHost
# Check if our hostname given in $1 is contained in the
# "shadow_masters" file
# echo true if there is our hostname else echo false
#
CheckIfShadowMasterHost()
{
host=$1
fname=$SGE_ROOT/$SGE_CELL/common/shadow_masters
if [ -f $fname ]; then
grep -i "^${host}$" $fname 2>&1 > /dev/null
if [ $? = 0 ]; then
shadow_host="true"
else
shadow_host="false"
fi
else
shadow_host="false"
fi
}
#---------------------------------------------------------------------------
# GetPathToBinaries
# echo the name of the bin_dir on this system
# The check is fulfilled if we can access the qstat binary
# echo "none" if we can't determine the binary path
GetPathToBinaries()
{
cfgname=$SGE_ROOT/$SGE_CELL/common/bootstrap
base=none
if [ -f $cfgname ]; then
base=`grep binary_path $cfgname | awk '{ print $2 }'`
if [ -f $base/qstat ]; then
:
elif [ -f $SGE_ROOT/util/arch ]; then
arch=`$SGE_ROOT/util/arch`
if [ -f $base/$arch/qstat ]; then
base=$base/$arch
fi
fi
fi
echo $base
}
#---------------------------------------------------------------------------
# GetAdminUser
# echo the name of the admin user on this system
# echo "root" if admin user retrieval fails
GetAdminUser()
{
cfgname=$SGE_ROOT/$SGE_CELL/common/bootstrap
user=none
if [ -f $cfgname ]; then
user=`grep admin_user $cfgname | awk '{ print $2 }'`
fi
if [ `echo $user|tr "[A-Z]" "[a-z]"` = "none" ]; then
user=root
fi
echo $user
}
#---------------------------------------------------------------------------
# GetPathToUtilbin
# echo the path to the binaries in utilbin
# The check is fulfilled if we can access the "gethostname" binary
# echo "none" if we can't determine the binary path
#
GetPathToUtilbin()
{
base=none
if [ -f $SGE_ROOT/util/arch ]; then
utilbindir=$SGE_ROOT/utilbin
arch=`$SGE_ROOT/util/arch`
if [ -f $utilbindir/$arch/gethostname ]; then
base=$utilbindir/$arch
fi
fi
echo $base
}
#---------------------------------------------------------------------------
# CheckRunningQmaster
# checks, if sge_qmaster is running
# In error case the sge_qmaster didn't start, silently
#
CheckRunningQmaster()
{
masterhost=`cat $SGE_ROOT/$SGE_CELL/common/act_qmaster`
if [ "$SGE_QMASTER_PORT" = "" ]; then
ping_port=`$utilbin_dir/getservbyname -number sge_qmaster`
else
ping_port=$SGE_QMASTER_PORT
fi
start=`$SGE_ROOT/utilbin/$ARCH/now 2>/dev/null`
running=false
retries=0
qping_timeout=false
# qping may have a long timeout in case of network or hostname resolution
# related problems.
# ensure that the test for a running qmaster does not take too long
# by limiting the total time and numbers the connection test is repeated
# we also require that the qmaster created a PID file before returning
while [ $retries -le 30 ]; do
$bin_dir/qping -info $masterhost $ping_port qmaster 1 > /dev/null 2>&1
if [ $? -eq 0 ]; then
running=true
break
else
now=`$SGE_ROOT/utilbin/$ARCH/now 2>/dev/null`
if [ "$now" -lt "$start" ]; then
start=$now
fi
elapsed=`expr $now - $start`
if [ $elapsed -gt 60 ]; then
if [ $retries -eq 0 ]; then
qping_timeout=true
fi
break
fi
sleep 2
masterhost=`cat $SGE_ROOT/$SGE_CELL/common/act_qmaster`
retries=`expr $retries + 1`
fi
done
if [ $running = "true" ]; then
if [ `CheckIfQmasterHost $HOST` = false ]; then
echo "sge_qmaster is running on another host (${masterhost})"
return 1
else
return 0
fi
else
echo
echo "sge_qmaster start problem"
if [ $qping_timeout = true ]; then
echo "Possibly a network or hostname configuration problem (got timeout)."
fi
echo
return 1
fi
}
#---------------------------------------------------------------------------
# DetectSMFService - sets service to a mask matching the name
# $1 ... name
#
DetectSMFService()
{
name=$1
service=""
if [ "$noSMF" = true -o $NO_SMF -ne 0 ]; then
return
fi
#Check we have cluster_name file
if [ ! -r "$SGE_ROOT/$SGE_CELL/common/cluster_name" ]; then
echo "Error: could not find $SGE_ROOT/$SGE_CELL/common/cluster_name!"
exit $SMF_EXIT_ERR_CONFIG
fi
#Cluster name must be unique
SGE_CLUSTER_NAME=`cat $SGE_ROOT/$SGE_CELL/common/cluster_name 2>/dev/null`
service="svc:/application/sge/$name:$SGE_CLUSTER_NAME"
#Check if service exists
/usr/bin/svcs $service > /dev/null 2>&1
if [ $? -ne 0 ]; then
#No such service found in the system
service=""
fi
}
#---------------------------------------------------------------------------
usage()
{
echo "Grid Engine start/stop script. Valid parameters are:"
echo ""
echo " (no parameters): start qmaster and shadow daemon if applicable"
echo " \"start\" ditto."
echo " \"stop\" shut down qmaster and shadow daemon if applicable"
echo " \"restart\" restart (stop and start) daemons"
echo " \"status\" check whether daemon(s) running"
echo " \"-qmaster\" only act on qmaster (if applicable)"
echo " \"-shadowd\" only act on shadowd (if applicable)"
echo " \"-migrate\" shutdown qmaster if it's running on another"
echo " host and restart it on this host"
echo " Migration only works if this host is an admin host"
echo " \"-nosmf\" force no SMF"
echo ""
echo "Only one of \"start\", \"stop\", or \"restart\" is allowed."
echo "Only one of the parameters beginning with \"-\" is allowed. Does not "
echo "apply to -nosmf."
echo
echo "Default argument is \"start\" for all components."
echo "Default for \"stop\" is shutting down all components."
echo
exit 1
}
#---------------------------------------------------------------------------
# MAIN Procedure
#
if [ "$#" -gt 3 -o "$1" = "-h" -o "$1" = "help" ]; then
usage
fi
startup=true
qmaster=true
shadowd=true
qstd=false
migrate_qmaster=false
noSMF=false
stop=false
status=false
for i in $*; do
if [ "$i" = start ]; then
startup=true
elif [ "$i" = stop ]; then
startup=false
stop=true
elif [ "$i" = restart ]; then
stop=true
startup=true
elif [ "$i" = status ]; then
startup=false
status=true
elif [ "$i" = -qmaster ]; then
qmaster=true
shadowd=false
elif [ "$i" = -shadowd ]; then
qmaster=false
shadowd=true
elif [ "$i" = -migrate ]; then
migrate_qmaster=true
qmaster=true
shadowd=false
elif [ "$i" = -nosmf ]; then
noSMF=true
else
usage
fi
done
bin_dir=`GetPathToBinaries`
if [ "$bin_dir" = "none" ]; then
echo "can't determine path to Grid Engine binaries"
exit 5 # LSB compliant exit status - program is not installed
fi
utilbin_dir=`GetPathToUtilbin`
if [ "$utilbin_dir" = "none" ]; then
echo "can't determine path to Grid Engine utility binaries"
exit 5 # LSB compliant exit status - program is not installed
fi
qmaster_spool_dir=`QmasterSpoolDir`
qma_run_dir=$qmaster_spool_dir
HOST=`$utilbin_dir/gethostname -aname`
UQHOST=`$utilbin_dir/gethostname -aname | cut -f1 -d.`
CheckIfShadowMasterHost $HOST
if [ "$stop" = true ]; then
if [ $shadowd = true -a $shadow_host = true ]; then
echo " Shutting down Grid Engine shadowd"
DetectSMFService shadowd
if [ \( -z "$SMF_FMRI" -o "$SMF_FMRI" != "$service" \) -a -n "$service" ]; then
svcadm disable -st $service
else
# Send SIGTERM to shadowd
if [ -f $qma_run_dir/shadowd_$UQHOST.pid ]; then
Shutdown sge_shadowd $qma_run_dir/shadowd_$UQHOST.pid
elif [ -f $qma_run_dir/shadowd_$HOST.pid ]; then
Shutdown sge_shadowd $qma_run_dir/shadowd_$HOST.pid
fi
fi
fi
if [ $qmaster = true ]; then
if [ `CheckIfQmasterHost $HOST` = true ]; then
echo " Shutting down Grid Engine qmaster"
DetectSMFService qmaster
if [ \( -z "$SMF_FMRI" -o "$SMF_FMRI" != "$service" \) -a -n "$service" ]; then
svcadm disable -st $service
exit $?
else
# Send SIGTERM to qmaster
Shutdown sge_qmaster $qma_run_dir/qmaster.pid
ret=$?
if [ -f /var/lock/subsys/sgemaster ]; then
uid=`$utilbin_dir/uidgid -uid`
if [ "$uid" = "0" -a "$ret" = "0" ]; then
rm -f /var/lock/subsys/sgemaster >/dev/null 2>&1
else
echo "Can't shut down qmaster!"
exit 1
fi
fi
fi
fi
fi
fi
if [ "$startup" = true ]; then
# qmaster_host=true if qmaster was running on this host the last time
# this host is an execution host
qmaster_host=`CheckIfQmasterHost $HOST`
primary_qmaster_host=`CheckIfPrimaryQmasterHost $HOST`
if [ $qmaster = true -a $qmaster_host = true -a $migrate_qmaster = true ]; then
echo " qmaster running on this host. Will not migrate qmaster."
exit 1
fi
if [ $qmaster = true -a $qmaster_host = false -a \
\( $primary_qmaster_host = true -o $migrate_qmaster = true \) ]; then
actual_qmaster_host=`cat $SGE_ROOT/$SGE_CELL/common/act_qmaster`
echo " Shutting down Grid Engine qmaster on host \"$actual_qmaster_host\" ..."
qconf_output=`$bin_dir/qconf -ks 2>&1 | grep "denied"`
if [ "$qconf_output" != "" ]; then
echo " denied: host \"$HOST\" is not an admin host."
exit 1
fi
$bin_dir/qconf -km > /dev/null 2>&1
qping_count=0
qping_retries=10
qping_exit_state=0
if [ "$SGE_QMASTER_PORT" = "" ]; then
ping_port=`$utilbin_dir/getservbyname -number sge_qmaster`
else
ping_port=$SGE_QMASTER_PORT
fi
while [ $qping_count -lt $qping_retries ]; do
$bin_dir/qping -info $actual_qmaster_host $ping_port qmaster 1 > /dev/null 2>&1
qping_exit_state=$?
if [ $qping_exit_state -ne 0 ]; then
break
fi
sleep 3
qping_count=`expr $qping_count + 1`
done
if [ $qping_exit_state -eq 0 ]; then
# qmaster is still running
echo " qmaster on host $actual_qmaster_host still alive. Cannot migrate qmaster."
exit 1
fi
lock_file_read_retries=10
lock_file_read_count=0
lock_file_found=0
while [ $lock_file_read_count -lt $lock_file_read_retries ]; do
if [ -f $qmaster_spool_dir/lock ]; then
lock_file_found=1
break
fi
sleep 3
lock_file_read_count=`expr $lock_file_read_count + 1`
done
if [ $lock_file_found -eq 0 ]; then
# old qmaster did not write lock file
echo " old qmaster did not write lock file. Cannot migrate qmaster."
echo " Please verify that qmaster on host $actual_qmaster_host is down"
echo " and make sure that the lock file in qmaster spool directory is"
echo " read-able."
exit 1
fi
qmaster_host=true
#If we use SMF, we need to notify the SMF service
DetectSMFService qmaster
if [ -n "$service" ]; then
svccfg -s $service setenv MIGRATE_SMF_STEP true
if [ $? -ne 0 ]; then
echo "Migration failed!"
echo "It seems you do not have permission to modify the $service SMF service."
exit 1
else
svcadm refresh $service
fi
fi
fi
exit_val=0
#Need to check if this is a SMF migration
DetectSMFService qmaster
if [ -n "$SMF_FMRI" -a "$SMF_FMRI" = "$service" -a "$MIGRATE_SMF_STEP" = true ]; then
qmaster_host=true
fi
if [ $qmaster = true -a $qmaster_host = false ]; then
echo
echo "sge_qmaster didn't start!"
echo "This is not a qmaster host!"
echo "Check your ${SGE_ROOT}/${SGE_CELL}/common/act_qmaster file!"
echo
if [ $shadowd = false -o ! -f $SGE_ROOT/$SGE_CELL/common/shadow_masters ]; then
exit 1
fi
elif [ $qmaster = true ]; then
already_running=false
#Check if pid file exists
if [ -s "$qma_run_dir/qmaster.pid" ]; then
daemon_pid=`cat "$qma_run_dir/qmaster.pid"`
$utilbin_dir/checkprog $daemon_pid sge_qmaster > /dev/null
if [ $? -eq 0 ]; then
already_running=true
fi
fi
# We can't detect pid file race, but we'll catch it most of the time
if [ "$already_running" = "true" ]; then
echo
echo "sge_qmaster with PID $daemon_pid is already running"
echo
else
#We want to use smf
if [ \( -z "$SMF_FMRI" -o "$SMF_FMRI" != "$service" \) -a -n "$service" ]; then
echo " Starting Grid Engine qmaster"
svcadm enable -st $service
exit_val=$?
#For -migrate with SMF qmaster_host is not yet set for SMF start (2nd)
elif [ $qmaster_host = true -o \( -n "$SMF_FMRI" -a "$SMF_FMRI" = "$service" \) ]; then
echo " Starting Grid Engine qmaster"
$bin_dir/sge_qmaster
[ $? -eq 0 -a -d /var/lock/subsys ] && touch /var/lock/subsys/sgemaster >/dev/null 2>&1
CheckRunningQmaster
exit_val=$?
if [ $exit_val -eq 0 -a -n "$SMF_FMRI" -a "$SMF_FMRI" = "$service" -a "$MIGRATE_SMF_STEP" = true ]; then
svccfg -s $service unsetenv MIGRATE_SMF_STEP
if [ $? -ne 0 ]; then
echo "Warning: SMF migration cleanup step failed!"
echo "It seems you do not have permission to modify the $service SMF service."
echo
echo "Run following commands manually as root or appropriate user:"
echo "svccfg -s $service unsetenv MIGRATE_SMF_STEP"
echo "svcadm refresh $service"
else
svcadm refresh $service
fi
fi
fi
if [ $exit_val -ne 0 ]; then
echo "sge_qmaster didn't start!"
fi
fi
fi
if [ $shadowd = true -a $shadow_host = false ]; then
#Display the message only if we have installed any shadowds
if [ -f $SGE_ROOT/$SGE_CELL/common/shadow_masters ]; then
echo
echo "sge_shadowd didn't start!"
echo "This is not a shadow master host!"
echo "Check your ${SGE_ROOT}/${SGE_CELL}/common/shadow_masters file!"
echo
elif [ $qmaster = false ]; then
#Shadow masters file does not exist and we try to start only shadowd
echo
echo "sge_shadowd didn't start!"
echo "File ${SGE_ROOT}/${SGE_CELL}/common/shadow_masters does not exist!"
echo "No shadowd installed?"
echo
fi
if [ $qmaster_host = false -o $qmaster = false ]; then
exit 1
fi
elif [ $shadowd = true ]; then
start_shadowd=true
UQpidfile=$qma_run_dir/shadowd_$UQHOST.pid
pidfile=$qma_run_dir/shadowd_$HOST.pid
if [ -f $pidfile ]; then
pid=`cat $pidfile`
$utilbin_dir/checkprog $pid sge_shadowd > /dev/null
if [ "$?" = 0 ]; then
start_shadowd=false
fi
fi
if [ -f $UQpidfile ]; then
pid=`cat $UQpidfile`
$utilbin_dir/checkprog $pid sge_shadowd > /dev/null
if [ "$?" = 0 ]; then
start_shadowd=false
fi
fi
if [ $start_shadowd = true ]; then
DetectSMFService shadowd
echo " Starting Grid Engine shadowd"
#We want to use smf
if [ \( -z "$SMF_FMRI" -o "$SMF_FMRI" != "$service" \) -a -n "$service" ]; then
svcadm enable -st $service
res=$?
else
$bin_dir/sge_shadowd
res=$?
fi
if [ $res -ne 0 ]; then
echo " sge_shadowd didn't start correctly!"
exit $res
fi
else
echo " found running sge_shadowd - not starting"
fi
fi
if [ $exit_val -ne 0 ]; then
exit $exit_val
fi
fi
master_not=0
shadow_not=0
if [ "$status" = true ]; then
if [ "$qmaster" = true ]; then
if [ -s "$qma_run_dir/qmaster.pid" ]; then
pid=`cat "$qma_run_dir/qmaster.pid"`
if $utilbin_dir/checkprog $pid sge_qmaster > /dev/null; then
echo "qmaster (pid $pid) is running..."
else
echo "qmaster (pid $pid) is not running..."
master_not=1
fi
else
echo "qmaster is not running..."
master_not=1
fi
fi
if [ "$shadowd" = true ]; then
UQpidfile=$qma_run_dir/shadowd_$UQHOST.pid
pidfile=$qma_run_dir/shadowd_$HOST.pid
pid=``
shadow_running=0
if [ -s "$UQpidfile" ]; then
pid=`cat $UQpidfile`
if $utilbin_dir/checkprog $pid sge_shadowd > /dev/null; then
shadow_running=1
fi
fi
if [ -s "$pidfile" ]; then
pid=`cat $pidfile`
if $utilbin_dir/checkprog $pid sge_shadowd > /dev/null; then
shadow_running=1
fi
fi
if [ -s "$pidfile" ] || [ -s "$UQpidfile" ]; then
if [ $shadow_running = 1 ]; then
echo "shadowd (pid $pid) is running..."
else
echo "shadowd (pid $pid) is not running..."
shadow_not=1
fi
else
echo "shadowd (pid $pid) is not running..."
shadow_not=1
fi
fi
# fixme: check LSB values
[ $master_not$shadow_not -gt 0 ] && exit 1 || exit 0
fi