Problem restarting license daemons via UNIX remsh command

chadwickh · #1 17th September 2002, 20:21

We have network licensing on three servers as defined in our $BSE/lib/licence6.1 file. To reset licenses I stop the license daemons in reverse order of the licence6.1 file and then start them up in order one at a time. To make this easier, I created a script that reads in the $BSE/lib/licence6.1 file and does this for me. The script is shown below. Now you have to believe me when I say this script used to work. I think a porting set upgrade caused it to not work anymore. Anyway the problem is when I try to issue a remote shell command to run the $BSE/etc/rc.start_licd script the script hangs until I kill the script or kill the license daemon program. My UNIX admins have no idea what could be causing it, do you? If you run the $BSE/etc/rc.start_licd script manually it says it started the license daemon and you can exit your shell cleanly.

Here's the script:

Code:

#!/usr/bin/sh
# file: resetlicensedaemons.sh
# auth: Chad Heidema
# date: 01/02/2002
# desc: Resets the license daemons on the servers identified by the $BSE/lib/licence6.1 file
# mods: Added a few lines to be logged to /home/bsp/bsp/license_daemon_reset.log

stop_license_server()
{
        if [ "$server" <> " " ]; then
                echo `date` "********************************************************"
                echo Stopping license server on: $server        
                echo `date` "********************************************************" >> $logfile
                echo $me stopping license server on: $server >> $logfile
                remsh $server ps -ef | grep licd6.1 | grep -v grep 
                remsh $server /home/bsp/bsp/bin/stoplicensedaemon.sh
        fi
}

start_license_server()
{
        if [ "$server" <> " " ]; then
                echo `date` "********************************************************"
                echo Starting license server on: $server        
                echo `date` "********************************************************" >> $logfile
                echo $me starting license server on: $server >> $logfile
                remsh $server /baan/etc/rc.start_licd
                remsh $server ps -ef | grep licd6.1 | grep -v grep 
        fi
}

# main program here

me=`whoami`
logfile=/home/bsp/bsp/license_daemon_reset.log  

# first read the licence file into 3 variables on the current server
host=`hostname`
serverlist=`cat /baan/lib/licence6.1`
echo `date` "********************************************************"
echo "Contents of /baan/lib/license6.1 file on $host: " $serverlist
server1=`echo $serverlist | cut -b-1-6`
server2=`echo $serverlist | cut -b-8-13`
server3=`echo $serverlist | cut -b-15-20`

# now shut down the servers in reverse order from 3 to 1
server=$server3
echo "Stopping first license server: $server3"
stop_license_server
echo "Done stopping first license server"
server=$server2
echo "Stopping second license server: $server2"
stop_license_server
server=$server1
stop_license_server

# now start the servers in order from 1 to 3
server=$server1
start_license_server
server=$server2
start_license_server
server=$server3
start_license_server

patvdv · #2 17th September 2002, 20:53

Chad,

I have seen similar problems before and I think it's partly due to the behaviour of the license daemon itself. The easiest way in which we managed to solve the issue to start your remote script in the background (using '&') so that the remsh finishes immediately.