command/script execution from script 2

[dwcasey]

Running a do:while loop to montior for a process in memory and within
that loop, I do a condition check for a process...if it comes back
missing, if PROC = "" then echo to log file that it's down and execute
a restart.

For my restart, I've tried to actually start it as root with su -c
"/home/user/run.sh" and I've tried to embed the su -c command execution
within a script and call that script.

Problem is, when I kill the process to be monitored, it is able to see
that it's down and it will run the startMileage script, but it never
restarts my process and I just see sh /root/old/startMileage stuck
running when I do a ps for it. So, it starts, but it never finishes??

Anyway, if I run the startMileage script manually, it works fine.

What is best way to execute a script/command from within that if:then
loop?

##############################################################################
LOGDIR="/usr/local/logs"
LOGFILE="$LOGDIR/CheckMileage.log"

MILE_DOWN="The Mileage process is not active on `hostname` : `date`"
echo "`date` : CheckMileage started..." >> $LOGFILE
while :
do
sleep 120
echo "******************************************" >>
$LOGFILE
echo "\t\t`date`" >>
$LOGFILE
echo "\nMileage status--" >>
$LOGFILE
ps -ef | grep "MileageCalculator" | grep -v grep >>
$LOGFILE
MILEAPP=`ps -ef | grep "MileageCalculator" | grep -v grep`
if [ "$MILEAPP" = "" ]
then
echo $MILE_DOWN >>
$LOGFILE
echo `date` >>
$LOGFILE
echo "Restarting Mileage and Notifying System
Administration....." >> $LOGFILE
echo "Sleeping 10 before attempt to restart
MileageCalculator" >> $LOGFILE
echo "Running: /root/old/startMileage" >> $LOGFILE
sh /root/old/startMileage

fi
done
return 1

 

[Annihilannic]

The problem is more likely to be within the startMileage script, can you post that?

Annihilannic.

 

[dwcasey]

Sure thing...only I though might be wrong is there is no #!/bin/ksh magic at the top.

##############################################################################
LOGDIR="/usr/local/logs"
LOGFILE="$LOGDIR/startMileage.log"

su - pacemile "-c /home/pacemile/run" >> $LOGFILE
exit

 

[Annihilannic]

The quotes need to be around the command only, i.e. not including the "-c". You may also need to add a "&" to make it run in the background, otherwise the calling script will wait for it to complete (it's possible that this is in the 'run' file already, if that is a script).

[tt]su - pacemile "-c /home/pacemile/run" >> $LOGFILE &[/tt]

Annihilannic.

 

[Annihilannic]

Oops! Copied it but didn't correct....

[tt]su - pacemile -c "/home/pacemile/run" >> $LOGFILE &[/tt]

Annihilannic.

 

[feherke]

Hi

Does not that [tt]su[/tt] just waiting for you to enter the root password ? For such purposes [tt]sudo[/tt] could be a better solution.

Feherke.

http://rootshell.be/~feherke/

 

[dwcasey]

I am running this script as root, so no pass required. But yes, sudo would be a good use in that case.

 

[Annihilannic]

By the way, the lack of #!/bin/ksh magic is irrelevant because you are running it using sh scriptname, which means you are forcing it to be interpreted using sh.

Annihilannic.

 

[dwcasey]

ok, that seems to have fixed it. But funny thing now. Here is the "run" script that is being called in that su -pacemile -c statement:

mv nohup.out nohup.out.`date +%m%d%I%M`
nohup java -Druntime.environment=TEST com.mileage.MileageCalculator &

But, since this is being called from the root script in /home/old, it's placing the nohup.out file there and not in /home/pacemile.

Any thoughts on how to get the nohup.out file back in /home/pacemile?

 

[hoinz]

Any thoughts on how to get the nohup.out file back in /home/pacemile?

Has the filename to be nohup.out? You are renaming it anyways.

What about output redirection, something like this:
nohup java -Druntime.environment=TEST com.mileage.MileageCalculator > /path/to/a/filename/of/your/choice 2>&1 &
(You may see 2 lines here, but it should be on 1 line)

hope this helps

 

[KenCunningham]

Or maybe include a tee so that a copy is created in /home/pacemile too.

 

[dwcasey]

Hoinz, done deal. thanks for the tip, I should have know to do that.

 

[hoinz]

glad it helped,
thanks for the star