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#
# sapdb.sh - for systems having SAPHostAgent installed
# (sourced by SAPDatabase)
#
# Description: This code is separated from the SAPDatabase agent to
# introduce new functions for systems which having
# SAPHostAgent installed.
# Someday it might be merged back into SAPDatabase agein.
#
# Author: Alexander Krauth, September 2010
# Support: linux@sap.com
# License: GNU General Public License (GPL)
# Copyright: (c) 2010, 2012 Alexander Krauth
#
#
# background_check_saphostexec : Run a request to saphostexec in a separate task, to be able to react to a hanging process
#
background_check_saphostexec() {
timeout=600
count=0
$SAPHOSTCTRL -function ListDatabases >/dev/null 2>&1 &
pid=$!
while kill -0 $pid > /dev/null 2>&1
do
sleep 0.1
count=$(( $count + 1 ))
if [ $count -ge $timeout ]; then
kill -9 $pid >/dev/null 2>&1
ocf_log warn "saphostexec did not respond to the method 'ListDatabases' within 60 seconds"
return $OCF_ERR_GENERIC # Timeout
fi
done
# child has already finished, now evaluate its returncode
wait $pid
}
#
# cleanup_saphostexec : make sure to cleanup the SAPHostAgent in case of any
# misbehavior
#
cleanup_saphostexec() {
pkill -9 -f "$SAPHOSTEXEC"
pkill -9 -f "$SAPHOSTSRV"
oscolpid=$(pgrep -f "$SAPHOSTOSCOL") # we check saposcol pid, because it
# might not run under control of
# saphostexec
# cleanup saposcol shared memory, otherwise it will not start again
if [ -n "$oscolpid" ];then
kill -9 $oscolpid
oscolipc=$(ipcs -m | grep "4dbe " | awk '{print $2}')
if [ -n "$oscolipc" ]; then
ipcrm -m $oscolipc
fi
fi
# removing the unix domain socket file as it might have wrong permissions or
# ownership - it will be recreated by saphostexec during next start
[ -r /tmp/.sapstream1128 ] && rm -f /tmp/.sapstream1128
}
#
# check_saphostexec : Before using saphostctrl we make sure that the
# saphostexec is running on the current node.
#
check_saphostexec() {
chkrc=$OCF_SUCCESS
running=$(pgrep -f "$SAPHOSTEXEC" | wc -l)
if [ $running -gt 0 ]; then
if background_check_saphostexec; then
return $OCF_SUCCESS
else
ocf_log warn "saphostexec did not respond to the method 'ListDatabases' correctly (rc=$?), it will be killed now"
running=0
fi
fi
if [ $running -eq 0 ]; then
ocf_log warn "saphostexec is not running on node `hostname`, it will be started now"
cleanup_saphostexec
output=`$SAPHOSTEXEC -restart 2>&1`
# now make sure the daemon has been started and is able to respond
srvrc=1
while [ $srvrc -ne 0 ] && [ "$(pgrep -f "$SAPHOSTEXEC" | wc -l)" -gt 0 ]
do
sleep 1
background_check_saphostexec
srvrc=$?
done
if [ $srvrc -eq 0 ]
then
ocf_log info "saphostexec on node $(hostname) was restarted !"
chkrc=$OCF_SUCCESS
else
ocf_log error "saphostexec on node $(hostname) could not be started! - $output"
chkrc=$OCF_ERR_GENERIC
fi
fi
return $chkrc
}
#
# sapdatabase_start : Start the SAP database
#
sapdatabase_start() {
check_saphostexec
rc=$?
if [ $rc -eq $OCF_SUCCESS ]
then
sapuserexit PRE_START_USEREXIT "$OCF_RESKEY_PRE_START_USEREXIT"
DBINST=""
if [ -n "$OCF_RESKEY_DBINSTANCE" ]
then
DBINST="-dbinstance $OCF_RESKEY_DBINSTANCE "
fi
FORCE=""
if ocf_is_true $OCF_RESKEY_AUTOMATIC_RECOVER
then
FORCE="-force"
fi
DBOSUSER=""
if [ -n "$OCF_RESKEY_DBOSUSER" ]
then
DBOSUSER="-dbuser $OCF_RESKEY_DBOSUSER "
fi
output=`$SAPHOSTCTRL -function StartDatabase -dbname $SID -dbtype $DBTYPE $DBINST $DBOSUSER $FORCE -service`
sapdatabase_monitor 1
rc=$?
if [ $rc -eq 0 ]
then
ocf_log info "SAP database $SID started: $output"
rc=$OCF_SUCCESS
sapuserexit POST_START_USEREXIT "$OCF_RESKEY_POST_START_USEREXIT"
else
ocf_log err "SAP database $SID start failed: $output"
rc=$OCF_ERR_GENERIC
fi
fi
return $rc
}
#
# sapdatabase_stop: Stop the SAP database
#
sapdatabase_stop() {
check_saphostexec
rc=$?
if [ $rc -eq $OCF_SUCCESS ]
then
sapuserexit PRE_STOP_USEREXIT "$OCF_RESKEY_PRE_STOP_USEREXIT"
DBINST=""
if [ -n "$OCF_RESKEY_DBINSTANCE" ]
then
DBINST="-dbinstance $OCF_RESKEY_DBINSTANCE "
fi
DBOSUSER=""
if [ -n "$OCF_RESKEY_DBOSUSER" ]
then
DBOSUSER="-dbuser $OCF_RESKEY_DBOSUSER "
fi
output=`$SAPHOSTCTRL -function StopDatabase -dbname $SID -dbtype $DBTYPE $DBINST $DBOSUSER -force -service`
if [ $? -eq 0 ]
then
ocf_log info "SAP database $SID stopped: $output"
rc=$OCF_SUCCESS
else
ocf_log err "SAP database $SID stop failed: $output"
rc=$OCF_ERR_GENERIC
fi
fi
sapuserexit POST_STOP_USEREXIT "$OCF_RESKEY_POST_STOP_USEREXIT"
return $rc
}
#
# sapdatabase_monitor: Can the given database instance do anything useful?
#
sapdatabase_monitor() {
strict=$1
rc=$OCF_SUCCESS
if ! ocf_is_true $strict
then
sapdatabase_status
rc=$?
else
check_saphostexec
rc=$?
if [ $rc -eq $OCF_SUCCESS ]
then
count=0
DBINST=""
if [ -n "$OCF_RESKEY_DBINSTANCE" ]
then
DBINST="-dbinstance $OCF_RESKEY_DBINSTANCE "
fi
if [ -n "$OCF_RESKEY_DBOSUSER" ]
then
DBOSUSER="-dbuser $OCF_RESKEY_DBOSUSER "
fi
output=`$SAPHOSTCTRL -function GetDatabaseStatus -dbname $SID -dbtype $DBTYPE $DBINST $DBOSUSER`
# we have to parse the output, because the returncode doesn't tell anything about the instance status
for SERVICE in `echo "$output" | grep -i 'Component[ ]*Name *[:=] [A-Za-z][A-Za-z0-9_]* (' | sed 's/^.*Component[ ]*Name *[:=] *\([A-Za-z][A-Za-z0-9_]*\).*$/\1/i'`
do
COLOR=`echo "$output" | grep -i "Component[ ]*Name *[:=] *$SERVICE (" | sed 's/^.*Status *[:=] *\([A-Za-z][A-Za-z0-9_]*\).*$/\1/i' | uniq`
STATE=0
case $COLOR in
Running) STATE=$OCF_SUCCESS;;
*) STATE=$OCF_NOT_RUNNING;;
esac
SEARCH=`echo "$OCF_RESKEY_MONITOR_SERVICES" | sed 's/\+/\\\+/g' | sed 's/\./\\\./g'`
if [ `echo "$SERVICE" | egrep -c "$SEARCH"` -eq 1 ]
then
if [ $STATE -eq $OCF_NOT_RUNNING ]
then
ocf_log err "SAP database service $SERVICE is not running with status $COLOR !"
rc=$STATE
fi
count=1
fi
done
if [ $count -eq 0 -a $rc -eq $OCF_SUCCESS ]
then
ocf_log err "The resource does not run any services which this RA could monitor!"
rc=$OCF_ERR_ARGS
fi
if [ $rc -ne $OCF_SUCCESS ]
then
ocf_log err "The SAP database $SID is not running: $output"
fi
fi
fi
return $rc
}
#
# sapdatabase_status: Are there any database processes on this host ?
#
sapdatabase_status() {
sid=`echo $SID | tr '[:upper:]' '[:lower:]'`
SUSER=${OCF_RESKEY_DBOSUSER:-""}
case $DBTYPE in
ADA) SEARCH="$SID/db/pgm/kernel"
[ -z "$SUSER" ] && SUSER=`grep "^SdbOwner" /etc/opt/sdb | awk -F'=' '{print $2}'`
SNUM=2
;;
ORA) DBINST=${OCF_RESKEY_DBINSTANCE}
DBINST=${OCF_RESKEY_DBINSTANCE:-${SID}}
SEARCH="ora_[a-z][a-z][a-z][a-z]_$DBINST"
if [ -z "$SUSER" ]; then
id "oracle" > /dev/null 2> /dev/null && SUSER="oracle"
id "ora${sid}" > /dev/null 2> /dev/null && SUSER="${SUSER:+${SUSER},}ora${sid}"
fi
SNUM=4
;;
DB6) SEARCH="db2[a-z][a-z][a-z]"
[ -z "$SUSER" ] && SUSER="db2${sid}"
SNUM=2
;;
SYB) SEARCH="dataserver"
[ -z "$SUSER" ] && SUSER="syb${sid}"
SNUM=1
;;
HDB) SEARCH="hdb[a-z]*server"
[ -z "$SUSER" ] && SUSER="${sid}adm"
SNUM=1
;;
esac
[ -z "$SUSER" ] && return $OCF_ERR_INSTALLED
cnt=`ps -u $SUSER -o args 2> /dev/null | grep -v grep | grep -c $SEARCH`
[ $cnt -ge $SNUM ] && return $OCF_SUCCESS
return $OCF_NOT_RUNNING
}
#
# sapdatabase_recover:
#
sapdatabase_recover() {
OCF_RESKEY_AUTOMATIC_RECOVER=1
sapdatabase_stop
sapdatabase_start
}
#
# sapdatabase_validate: Check the semantics of the input parameters
#
sapdatabase_validate() {
rc=$OCF_SUCCESS
if [ `echo "$SID" | grep -c '^[A-Z][A-Z0-9][A-Z0-9]$'` -ne 1 ]
then
ocf_log err "Parsing parameter SID: '$SID' is not a valid system ID!"
rc=$OCF_ERR_ARGS
fi
case "$DBTYPE" in
ORA|ADA|DB6|SYB|HDB) ;;
*) ocf_log err "Parsing parameter DBTYPE: '$DBTYPE' is not a supported database type!"
rc=$OCF_ERR_ARGS ;;
esac
return $rc
}
#
# sapdatabase_init: initialize global variables at the beginning
#
sapdatabase_init() {
OCF_RESKEY_AUTOMATIC_RECOVER_default=0
: ${OCF_RESKEY_AUTOMATIC_RECOVER=${OCF_RESKEY_AUTOMATIC_RECOVER_default}}
if [ -z "$OCF_RESKEY_MONITOR_SERVICES" ]
then
case $DBTYPE in
ORA) export OCF_RESKEY_MONITOR_SERVICES="Instance|Database|Listener"
;;
ADA) export OCF_RESKEY_MONITOR_SERVICES="Database"
;;
DB6) db2sid="db2`echo $SID | tr '[:upper:]' '[:lower:]'`"
export OCF_RESKEY_MONITOR_SERVICES="${SID}|${db2sid}"
;;
SYB) export OCF_RESKEY_MONITOR_SERVICES="Server"
;;
HDB) export OCF_RESKEY_MONITOR_SERVICES="hdbindexserver|hdbnameserver"
;;
esac
fi
}

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