History for ZopeRestart

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<h3>A Zope Restart Method for Debian and Zeo</h4>

**The Problem**:  default setup of debian zope causes problems if I install ZEO

- Gregor Hoffleit, the Debian maintainer of zope, recommends */etc/init.d/zope stop* then */etc/init.d/zope start* for hard restarts and *zopectl restart* for soft restarts .  

- Chris Gray explains how to setup ZEO on debian (see resources below) but stops short of offering a clean setup for un-attended reboots

- I notice I sometimes need to kill some remaining zope -z2, zopectl or pcgi-wrapper processes between those two hard restart commands

- ZEO process has to be run first before zope is started

- *idea*: put zeo startup in */etc/init.d/zope start* and zeo stop in */etc/init.d/zope stop* ; this way it will be the hard restart of zope (including zeo) as opposed to **zopectl**, the soft restart of zope only (not 
zeo) 

**Solution**: *This works for my needs and wishes expressed here.  It is brutish because I want it to work for un-attended zope and zeo restarts.*
Add the following to **/etc/init.d/zope**::

 case $1 in
  stop )
   echo Stopping ZEO
   zopectl stop
   sleep 1
   kill $(cat /var/lib/zope/var/ZEO_SERVER.pid) 
   rm  -f /var/lib/zope/var/*.lock # in case locks are left hanging
   for I in $(ps ax |grep python|grep zope|cut -d" " -f1)
    do kill -HUP $I   # to kill off any remaining zope processes
   done
   killall -9 zopectl  # kill any remaining hanging zopectl processes
   killall -9 zope-z2  # kill any recalcitrant zope processes
   ;;
  start )
   echo Starting ZEO
   cd /var/lib/zope/var
   export STUPID_LOG_FILE=/tmp/stupid.log  # debug logging
   mv /tmp/stupid.log /tmp/stupid2.log  # primitive rotating
   # this is the only line that really matters:
   python /usr/lib/zope/lib/python/ZEO/start.py -d -p 7700 -u www-data
   cd -
   ;;
  esac
  # rest of zope restart script continues here


**Notes**:

- probably not a good idea to use the **-D** (show debug and don't go int0 background flag) ... instead use **export Z_DEBUG_MODE=1** just before restart the zope process when you want to see complete debugging output on the console 
   
**Resources**

- "Zope Restart HOWTO":http://www.zope.org/Members/howardhansen/debianstartupscript

- "Debian ZEO HOWTO":http://www.zope.org/Members/Chris%20Gray/DebianZEO 


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