server daemon problem (start, stop, etc)

[mmangone]

We've run through the documentation for installing Babel a few times and we've run into the same thing every time.  Any help would be appreciated.  We running CentOS 5 with a 2.6.18-8.el5 kernel.

When trying to start the server we get...

[root@monitor init.d]# /etc/init.d/babelserver_daemon start
Starting Babel server/etc/init.d/babelserver_daemon: line 22: start-stop-daemon: command not found
.

---

[root@monitor init.d]# sh -x babelserver_daemon
+ PATH=/bin:/usr/bin:/sbin:/usr/sbin:/usr/local/bin
+ NAME='Babel server'
+ DAEMON=/usr/local/bin/babelserver
+ PIDFILE=/var/run/babelserver.pid
+ '[' '!' -f /usr/local/bin/babelserver ']'
+ case "$1" in
+ echo 'Uso: babelserver_daemon {start|stop|restart|force-reload}'
Uso: babelserver_daemon {start|stop|restart|force-reload}
+ exit 1

[Manuel Arostegui]

start-stop-daemon is a feature of debian based distros, centOS is redhat based.

[shaveht]

Hi,
reusing pandora server init script, i obtain a babelserver script that not needs start-stop-daemon.
I test it on CentOS 5.1 and seems to work fine.

bye

--------------------------------------------------------------------------------

#!/bin/bash

# Babel Enterprise, startup script
#
# Linux Version (generico)
#

# Configurable path and filenames
BABEL_HOME="/usr/local/etc/babel/babel_server.conf"
BABEL_PID_PATH="/var/run"
BABEL_PID=$BABEL_PID_PATH/babelserver.pid
BABEL_DAEMON=/usr/local/bin/babelserver

# Main script

if [ ! -d "$BABEL_PID_PATH" ]
then
   echo "Babel Enterprise cannot write it's PID file in $BABEL_PID_PATH. Please create that directory"
   exit
fi

if [ ! -f $BABEL_DAEMON ]
then
        echo "Babel Enterprise not found, please check setup and read manual"
        exit
fi

case "$1" in
  start)
   OLD_PATH="`pwd`"
   if [ -f $BABEL_PID ]
   then
      CHECK_PID=`cat $BABEL_PID`
      CHECK_PID_RESULT=`ps aux | grep -v grep | grep "$CHECK_PID" | grep "babelserver" | wc -l`
      if [ $CHECK_PID_RESULT == 1 ]
      then
         echo "Babel Enterprise is currently running on this machine with PID ($CHECK_PID). Aborting now..."
         exit
      fi
   fi
   
   $BABEL_DAEMON $BABEL_HOME -D
   sleep 1

   MYPID=`ps aux | grep "$BABEL_DAEMON" | grep -v grep | tail -1 | awk '{print $2}'`
   if [ ! -z "$MYPID" ]
   then
      echo $MYPID > $BABEL_PID
      echo "Babel Enterprise is now running with PID $MYPID"
   else
      echo "Cannot start Babel Enterprise. Aborted."
   fi
   cd "$OLD_PATH"
        ;;
  stop)
   if [ -f $BABEL_PID ]
   then
      echo "Stopping Babel Enterprise"
      PID_2=`cat $BABEL_PID`
      if [ ! -z "`ps -F -p $PID_2 | grep -v grep | grep 'babelserver' `" ]
           then
          kill `cat $BABEL_PID` 2> /dev/null > /dev/null
      fi
           rm -f $BABEL_PID
   else
     echo "Babel Enterprise is not running, cannot stop it."
   fi
        ;;
  force-reload|restart)
        $0 stop
        $0 start
        ;;
  *)
        echo "Usage: babelserver {start|stop|restart}"
        exit 1
esac

[Manuel Arostegui]

That should work.

Anyway, I'm going to make a start script daemon for RedHat based distros, I'll do it as soon as I have some time :)

[shaveht]

Ehm... there is an error :)

change this line:
$BABEL_DAEMON $BABEL_HOME -D

with this one:
$BABEL_DAEMON -c $BABEL_HOME &

sorry...

bye

[Manuel Arostegui]

You might want to add "nohup" as well.

[mmangone]

Thanks all.. the script with the minor change worked, you do not need the nohup.  

#!/bin/bash

# Babel Enterprise, startup script
#
# Linux Version (generico)
#

# Configurable path and filenames
BABEL_HOME="/usr/local/etc/babel/babel_server.conf"
BABEL_PID_PATH="/var/run"
BABEL_PID=$BABEL_PID_PATH/babelserver.pid
BABEL_DAEMON=/usr/local/bin/babelserver

# Main script

if [ ! -d "$BABEL_PID_PATH" ]
then
echo "Babel Enterprise cannot write it's PID file in $BABEL_PID_PATH. Please create that directory"
exit
fi

if [ ! -f $BABEL_DAEMON ]
then
echo "Babel Enterprise not found, please check setup and read manual"
exit
fi

case "$1" in
start)
OLD_PATH="`pwd`"
if [ -f $BABEL_PID ]
then
CHECK_PID=`cat $BABEL_PID`
CHECK_PID_RESULT=`ps aux | grep -v grep | grep "$CHECK_PID" | grep "babelserver" | wc -l`
if [ $CHECK_PID_RESULT == 1 ]
then
echo "Babel Enterprise is currently running on this machine with PID ($CHECK_PID). Aborting now..."
exit
fi
fi

#$BABEL_DAEMON $BABEL_HOME -D
$BABEL_DAEMON -c $BABEL_HOME &

sleep 1

MYPID=`ps aux | grep "$BABEL_DAEMON" | grep -v grep | tail -1 | awk '{print $2}'`
if [ ! -z "$MYPID" ]
then
echo $MYPID > $BABEL_PID
echo "Babel Enterprise is now running with PID $MYPID"
else
echo "Cannot start Babel Enterprise. Aborted."
fi
cd "$OLD_PATH"
;;
stop)
if [ -f $BABEL_PID ]
then
echo "Stopping Babel Enterprise"
PID_2=`cat $BABEL_PID`
if [ ! -z "`ps -F -p $PID_2 | grep -v grep | grep 'babelserver' `" ]
then
kill `cat $BABEL_PID` 2> /dev/null > /dev/null
fi
rm -f $BABEL_PID
else
echo "Babel Enterprise is not running, cannot stop it."
fi
;;
force-reload|restart)
$0 stop
$0 start
;;
*)
echo "Usage: babelserver {start|stop|restart}"
exit 1
esac

[Manuel Arostegui]

I tested it today, it works fine, I'll upload it to the SVN to package it in the next package releases, which are going to be packaged soon, as 2.0 release is about to be announced.

[shaveht]

Great!!!