diff --git a/xCAT/postscripts/xcatflowrequest b/xCAT/postscripts/xcatflowrequest index 64a04c760..b8dd84ea1 100755 --- a/xCAT/postscripts/xcatflowrequest +++ b/xCAT/postscripts/xcatflowrequest @@ -4,10 +4,41 @@ # ready to process the request # It is called by xcatdsklspost before calling getpostscripts.awk # it is called by remoteshell before calling getcredentials.awk +# For example xcatflowrequest 3001 +# Returns +# 0 = good +# 1 = ping/nmap to ip address of master failed (TBD) +# 2 = xcatd never gave goahead # + +# Here we will test to see if nmap is available +# if available we will use it to see if the daemon is available +# If not available we will use ping to the ip address +# If nmap or ping fail then +# we will return with exit 1 +# + + # check bash version, if < 4 then cannot use autodetect of next FD bashversion=$BASH_VERSION bashversionnum=`echo $bashversion | cut -d. -f1` + +# cleanup before exiting +cleanup() +{ +sleeper=$(cat /tmp/sleeperpid.$parpid) +sleeper=$(ps -ef|awk "\$3==$sleeper"|awk '{print $2}') +rm /tmp/goahead.$parpid +rm /tmp/sleeperpid.$parpid +rm /tmp/killme.$parpid +if [[ $bashversionnum > 3 ]]; then + exec {REMOTEFD}>&- +else + exec 50>&- +fi +kill -TERM $sleeper +} + if [[ $bashversionnum > 3 ]]; then exec {REMOTEFD}<>/dev/udp/$1/$2 else @@ -20,6 +51,8 @@ parpid=$$ touch /tmp/goahead.$parpid touch /tmp/killme.$parpid exec 2> /dev/null +RETRY=0 +MAX_RETRIES=50 while ! grep 'resourcerequest: ok' /tmp/goahead.$parpid > /dev/null; do ( echo "resourcerequest: xcatd" >&$REMOTEFD @@ -35,16 +68,15 @@ while ! grep 'resourcerequest: ok' /tmp/goahead.$parpid > /dev/null; do echo $! > /tmp/sleeperpid.$parpid exec awk '{print $0 > "/tmp/goahead.'$parpid'";exit}' <&$REMOTEFD exec {LOCALFD}>&- - ) + ) + # limit retries, if we reach the max error out + RETRY=$(($RETRY+1)) + if [ $RETRY -eq $MAX_RETRIES ] + then + cleanup + exit 2 + fi + done -sleeper=$(cat /tmp/sleeperpid.$parpid) -sleeper=$(ps -ef|awk "\$3==$sleeper"|awk '{print $2}') -rm /tmp/goahead.$parpid -rm /tmp/sleeperpid.$parpid -rm /tmp/killme.$parpid -if [[ $bashversionnum > 3 ]]; then - exec {REMOTEFD}>&- -else - exec 50>&- -fi -kill -TERM $sleeper +cleanup +exit 0